Attachment 102414 Details for Bug 75244 – dmesg(disable RC6)

dmesg(disable RC6)

dmesg-byt06_disablerc6_0708.txt (text/plain), 125.03 KB, created by lu hua on 2014-07-08 07:36:12 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: lu hua

Created: 2014-07-08 07:36:12 UTC

Size: 125.03 KB

patch

obsolete

>[  218.285715] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  218.285744] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  218.285763] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  218.285766]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  218.285771]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  218.285775]  ffff880002930000 ffff880002938300 00000000fffebf0a ffff880002930000
>[  218.285780] Call Trace:
>[  218.285790]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  218.285797]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  218.285813]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  218.285829]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  218.285846]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  218.285869]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  218.285874]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  218.285879]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  218.285884]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  218.285889]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  218.285895]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  218.285899]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  218.285904]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  218.285908] ---[ end trace 3da967cdfd47b567 ]---
>[  218.295142] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  218.311194] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  218.333585] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  218.509449] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  218.671440] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  218.673439] ------------[ cut here ]------------
>[  218.673467] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  218.673469] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  218.673498] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  218.673517] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  218.673520]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  218.673525]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  218.673530]  ffff880002930000 ffff880002938300 00000000fffec08d ffff880002930000
>[  218.673534] Call Trace:
>[  218.673544]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  218.673551]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  218.673567]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  218.673583]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  218.673600]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  218.673623]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  218.673628]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  218.673633]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  218.673637]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  218.673643]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  218.673648]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  218.673653]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  218.673658]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  218.673661] ---[ end trace 3da967cdfd47b568 ]---
>[  218.735043] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  218.792119] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  218.935957] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  218.939959] ------------[ cut here ]------------
>[  218.939985] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  218.939988] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  218.940016] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  218.940036] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  218.940040]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  218.940044]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  218.940049]  ffff880002930000 ffff880002938300 00000000fffec197 ffff880002930000
>[  218.940053] Call Trace:
>[  218.940063]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  218.940070]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  218.940086]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  218.940102]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  218.940119]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  218.940142]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  218.940147]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  218.940152]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  218.940157]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  218.940162]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  218.940168]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  218.940172]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  218.940177]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  218.940181] ---[ end trace 3da967cdfd47b569 ]---
>[  219.035273] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  219.037501] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  219.061641] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  219.390375] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  219.704700] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  220.019036] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 600 MHz (210)
>[  220.289592] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  220.291599] ------------[ cut here ]------------
>[  220.291626] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  220.291628] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  220.291656] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  220.291675] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  220.291679]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  220.291684]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  220.291688]  ffff880002930000 ffff880002938300 00000000fffec6dc ffff880002930000
>[  220.291693] Call Trace:
>[  220.291703]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  220.291710]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  220.291726]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  220.291741]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  220.291758]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  220.291781]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  220.291791]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  220.291796]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  220.291800]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  220.291806]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  220.291811]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  220.291816]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  220.291821]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  220.291825] ---[ end trace 3da967cdfd47b56a ]---
>[  252.346615] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  252.623222] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  253.014154] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  253.543680] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  253.716741] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  253.716865] ------------[ cut here ]------------
>[  253.716900] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  253.716903] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  253.716932] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  253.716951] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  253.716955]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  253.716960]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  253.716964]  ffff880002930000 ffff880002938300 00000000ffff492e ffff880002930000
>[  253.716969] Call Trace:
>[  253.716980]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  253.716987]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  253.717003]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  253.717019]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  253.717036]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  253.717059]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  253.717065]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  253.717069]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  253.717074]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  253.717079]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  253.717085]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  253.717090]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  253.717095]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  253.717098] ---[ end trace 3da967cdfd47b56b ]---
>[  253.819296] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  253.953364] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  254.075438] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  254.079443] ------------[ cut here ]------------
>[  254.079470] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  254.079473] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  254.079501] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  254.079520] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  254.079524]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  254.079528]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  254.079533]  ffff880002930000 ffff880002938300 00000000ffff4a96 ffff880002930000
>[  254.079538] Call Trace:
>[  254.079547]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  254.079554]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  254.079570]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  254.079585]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  254.079603]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  254.079626]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  254.079631]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  254.079636]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  254.079640]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  254.079646]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  254.079651]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  254.079656]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  254.079661]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  254.079664] ---[ end trace 3da967cdfd47b56c ]---
>[  254.129204] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  254.351977] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  254.353977] ------------[ cut here ]------------
>[  254.354004] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  254.354006] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  254.354034] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  254.354054] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  254.354057]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  254.354062]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  254.354067]  ffff880002930000 ffff880002938300 00000000ffff4ba8 ffff880002930000
>[  254.354072] Call Trace:
>[  254.354081]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  254.354088]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  254.354104]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  254.354120]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  254.354137]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  254.354160]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  254.354165]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  254.354170]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  254.354175]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  254.354180]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  254.354186]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  254.354190]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  254.354196]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  254.354199] ---[ end trace 3da967cdfd47b56d ]---
>[  254.364976] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  254.551677] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  254.760774] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  254.764777] ------------[ cut here ]------------
>[  254.764803] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  254.764806] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  254.764835] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  254.764854] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  254.764858]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  254.764862]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  254.764867]  ffff880002930000 ffff880002938300 00000000ffff4d42 ffff880002930000
>[  254.764872] Call Trace:
>[  254.764881]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  254.764888]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  254.764904]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  254.764920]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  254.764937]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  254.764960]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  254.764965]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  254.764970]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  254.764974]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  254.764980]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  254.764986]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  254.764990]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  254.764995]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  254.764999] ---[ end trace 3da967cdfd47b56e ]---
>[  254.791230] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  255.108622] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  255.457906] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  255.772234] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  256.086572] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 600 MHz (210)
>[  256.359889] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  256.363894] ------------[ cut here ]------------
>[  256.363921] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  256.363923] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  256.363952] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  256.363971] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  256.363975]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  256.363979]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  256.363984]  ffff880002930000 ffff880002938300 00000000ffff537e ffff880002930000
>[  256.363989] Call Trace:
>[  256.363998]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  256.364005]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  256.364021]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  256.364037]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  256.364054]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  256.364077]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  256.364083]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  256.364087]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  256.364092]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  256.364097]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  256.364103]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  256.364108]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  256.364113]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  256.364116] ---[ end trace 3da967cdfd47b56f ]---
>[  287.829045] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  287.950454] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  287.952458] ------------[ cut here ]------------
>[  287.952485] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  287.952488] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  287.952517] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  287.952536] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  287.952540]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  287.952544]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  287.952549]  ffff880002930000 ffff880002938300 00000000ffffcea7 ffff880002930000
>[  287.952554] Call Trace:
>[  287.952563]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  287.952571]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  287.952587]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  287.952602]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  287.952620]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  287.952643]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  287.952648]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  287.952653]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  287.952657]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  287.952663]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  287.952669]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  287.952673]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  287.952679]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  287.952682] ---[ end trace 3da967cdfd47b570 ]---
>[  287.952729] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  288.163036] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  288.184898] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  288.513219] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  288.714946] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  288.716946] ------------[ cut here ]------------
>[  288.716985] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  288.716988] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  288.717017] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  288.717036] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  288.717040]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  288.717044]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  288.717049]  ffff880002930000 ffff880002938300 00000000ffffd1a0 ffff880002930000
>[  288.717054] Call Trace:
>[  288.717065]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  288.717072]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  288.717088]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  288.717104]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  288.717121]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  288.717146]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  288.717152]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  288.717156]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  288.717161]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  288.717167]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  288.717173]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  288.717177]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  288.717183]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  288.717186] ---[ end trace 3da967cdfd47b571 ]---
>[  288.747622] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  288.772816] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  289.223937] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  289.225938] ------------[ cut here ]------------
>[  289.225965] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  289.225968] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  289.225996] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  289.226016] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  289.226019]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  289.226024]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  289.226028]  ffff880002930000 ffff880002938300 00000000ffffd39c ffff880002930000
>[  289.226033] Call Trace:
>[  289.226043]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  289.226050]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  289.226066]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  289.226081]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  289.226098]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  289.226122]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  289.226127]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  289.226132]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  289.226136]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  289.226142]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  289.226148]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  289.226152]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  289.226158]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  289.226161] ---[ end trace 3da967cdfd47b572 ]---
>[  289.329495] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  289.629703] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  289.759981] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  289.762129] ------------[ cut here ]------------
>[  289.762155] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  289.762158] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  289.762187] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  289.762206] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  289.762209]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  289.762214]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  289.762218]  ffff880002930000 ffff880002938300 00000000ffffd5b3 ffff880002930000
>[  289.762223] Call Trace:
>[  289.762233]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  289.762240]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  289.762255]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  289.762271]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  289.762288]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  289.762311]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  289.762317]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  289.762321]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  289.762326]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  289.762331]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  289.762337]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  289.762342]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  289.762347]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  289.762350] ---[ end trace 3da967cdfd47b573 ]---
>[  289.851921] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  290.026967] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  290.148739] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  290.152743] ------------[ cut here ]------------
>[  290.152769] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  290.152772] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  290.152800] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  290.152820] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  290.152823]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  290.152828]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  290.152832]  ffff880002930000 ffff880002938300 00000000ffffd739 ffff880002930000
>[  290.152837] Call Trace:
>[  290.152846]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  290.152854]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  290.152869]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  290.152885]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  290.152902]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  290.152925]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  290.152931]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  290.152935]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  290.152940]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  290.152945]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  290.152951]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  290.152956]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  290.152961]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  290.152964] ---[ end trace 3da967cdfd47b574 ]---
>[  290.158429] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  290.629207] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  290.813034] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  290.815034] ------------[ cut here ]------------
>[  290.815061] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  290.815064] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  290.815093] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  290.815112] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  290.815115]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  290.815120]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  290.815124]  ffff880002930000 ffff880002938300 00000000ffffd9ce ffff880002930000
>[  290.815129] Call Trace:
>[  290.815139]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  290.815146]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  290.815162]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  290.815178]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  290.815195]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  290.815218]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  290.815223]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  290.815228]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  290.815232]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  290.815238]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  290.815244]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  290.815248]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  290.815254]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  290.815257] ---[ end trace 3da967cdfd47b575 ]---
>[  290.864670] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  291.096587] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  291.098589] ------------[ cut here ]------------
>[  291.098615] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  291.098618] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  291.098646] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  291.098666] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  291.098669]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  291.098674]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  291.098678]  ffff880002930000 ffff880002938300 00000000ffffdae9 ffff880002930000
>[  291.098683] Call Trace:
>[  291.098693]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  291.098700]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  291.098715]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  291.098731]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  291.098748]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  291.098771]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  291.098777]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  291.098781]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  291.098786]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  291.098792]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  291.098797]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  291.098802]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  291.098807]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  291.098810] ---[ end trace 3da967cdfd47b576 ]---
>[  291.177143] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  291.178894] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  291.424226] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  291.426226] ------------[ cut here ]------------
>[  291.426252] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  291.426255] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  291.426284] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  291.426303] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  291.426307]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  291.426311]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  291.426316]  ffff880002930000 ffff880002938300 00000000ffffdc30 ffff880002930000
>[  291.426321] Call Trace:
>[  291.426330]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  291.426337]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  291.426353]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  291.426369]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  291.426386]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  291.426409]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  291.426415]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  291.426419]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  291.426424]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  291.426429]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  291.426435]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  291.426440]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  291.426445]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  291.426448] ---[ end trace 3da967cdfd47b577 ]---
>[  323.351187] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  323.560769] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  323.667043] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  323.686395] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  323.712410] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  324.036582] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  324.219136] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  324.223142] ------------[ cut here ]------------
>[  324.223169] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  324.223172] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  324.223200] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  324.223220] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  324.223223]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  324.223228]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  324.223233]  ffff880002930000 ffff880002938300 0000000100005c0d ffff880002930000
>[  324.223238] Call Trace:
>[  324.223248]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  324.223255]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  324.223271]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  324.223287]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  324.223304]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  324.223327]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  324.223333]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  324.223338]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  324.223342]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  324.223348]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  324.223353]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  324.223358]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  324.223363]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  324.223367] ---[ end trace 3da967cdfd47b578 ]---
>[  324.245176] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  324.488664] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  324.490663] ------------[ cut here ]------------
>[  324.490690] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  324.490693] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  324.490722] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  324.490741] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  324.490745]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  324.490749]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  324.490754]  ffff880002930000 ffff880002938300 0000000100005d18 ffff880002930000
>[  324.490758] Call Trace:
>[  324.490769]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  324.490776]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  324.490791]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  324.490807]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  324.490824]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  324.490847]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  324.490853]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  324.490857]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  324.490862]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  324.490868]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  324.490873]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  324.490878]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  324.490884]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  324.490887] ---[ end trace 3da967cdfd47b579 ]---
>[  324.579371] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  324.744159] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  324.746162] ------------[ cut here ]------------
>[  324.746188] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  324.746191] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  324.746219] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  324.746238] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  324.746242]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  324.746246]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  324.746251]  ffff880002930000 ffff880002938300 0000000100005e17 ffff880002930000
>[  324.746255] Call Trace:
>[  324.746265]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  324.746272]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  324.746288]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  324.746303]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  324.746320]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  324.746343]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  324.746349]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  324.746353]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  324.746358]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  324.746364]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  324.746369]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  324.746374]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  324.746379]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  324.746382] ---[ end trace 3da967cdfd47b57a ]---
>[  324.805699] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  325.171575] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  325.485902] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  325.634788] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 755 MHz (217)
>[  325.798213] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  325.802220] ------------[ cut here ]------------
>[  325.802247] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  325.802249] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  325.802278] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  325.802297] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  325.802301]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  325.802306]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  325.802310]  ffff880002930000 ffff880002938300 0000000100006235 ffff880002930000
>[  325.802315] Call Trace:
>[  325.802325]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  325.802332]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  325.802348]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  325.802363]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  325.802380]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  325.802404]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  325.802409]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  325.802414]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  325.802418]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  325.802424]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  325.802430]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  325.802434]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  325.802439]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  325.802443] ---[ end trace 3da967cdfd47b57b ]---
>[  325.865624] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  326.081960] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  326.204003] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  326.206008] ------------[ cut here ]------------
>[  326.206035] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  326.206037] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  326.206066] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  326.206086] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  326.206089]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  326.206094]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  326.206098]  ffff880002930000 ffff880002938300 00000001000063ca ffff880002930000
>[  326.206103] Call Trace:
>[  326.206112]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  326.206119]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  326.206135]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  326.206151]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  326.206168]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  326.206191]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  326.206196]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  326.206201]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  326.206206]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  326.206211]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  326.206217]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  326.206222]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  326.206227]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  326.206230] ---[ end trace 3da967cdfd47b57c ]---
>[  326.312052] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  326.492566] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  326.494566] ------------[ cut here ]------------
>[  326.494592] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  326.494595] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  326.494623] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  326.494642] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  326.494646]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  326.494650]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  326.494655]  ffff880002930000 ffff880002938300 00000001000064e8 ffff880002930000
>[  326.494659] Call Trace:
>[  326.494669]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  326.494676]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  326.494691]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  326.494707]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  326.494724]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  326.494747]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  326.494753]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  326.494757]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  326.494762]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  326.494767]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  326.494773]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  326.494778]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  326.494783]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  326.494786] ---[ end trace 3da967cdfd47b57d ]---
>[  326.542194] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  326.886334] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  326.888338] ------------[ cut here ]------------
>[  326.888374] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  326.888377] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  326.888406] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  326.888426] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  326.888429]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  326.888433]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  326.888438]  ffff880002930000 ffff880002938300 0000000100006673 ffff880002930000
>[  326.888443] Call Trace:
>[  326.888453]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  326.888461]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  326.888477]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  326.888492]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  326.888509]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  326.888533]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  326.888539]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  326.888544]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  326.888548]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  326.888555]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  326.888560]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  326.888565]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  326.888571]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  326.888574] ---[ end trace 3da967cdfd47b57e ]---
>[  326.960270] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  327.174895] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  327.176897] ------------[ cut here ]------------
>[  327.176924] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  327.176927] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  327.176955] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  327.176974] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  327.176977]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  327.176982]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  327.176986]  ffff880002930000 ffff880002938300 0000000100006791 ffff880002930000
>[  327.176991] Call Trace:
>[  327.177001]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  327.177008]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  327.177024]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  327.177039]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  327.177056]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  327.177079]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  327.177085]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  327.177089]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  327.177094]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  327.177100]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  327.177105]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  327.177110]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  327.177115]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  327.177118] ---[ end trace 3da967cdfd47b57f ]---
>[  327.256699] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  327.643829] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  327.958160] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  328.272492] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 600 MHz (210)
>[  328.500478] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  328.504484] ------------[ cut here ]------------
>[  328.504510] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  328.504513] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  328.504541] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  328.504560] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  328.504563]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  328.504568]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  328.504572]  ffff880002930000 ffff880002938300 0000000100006cbe ffff880002930000
>[  328.504577] Call Trace:
>[  328.504586]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  328.504593]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  328.504609]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  328.504624]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  328.504642]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  328.504665]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  328.504670]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  328.504675]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  328.504679]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  328.504685]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  328.504690]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  328.504695]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  328.504700]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  328.504704] ---[ end trace 3da967cdfd47b580 ]---
>[  358.891646] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  359.103977] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  359.214442] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  359.570653] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  359.773425] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  359.775429] ------------[ cut here ]------------
>[  359.775457] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  359.775459] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  359.775488] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  359.775507] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  359.775511]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  359.775516]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  359.775520]  ffff880002930000 ffff880002938300 000000010000e6a8 ffff880002930000
>[  359.775525] Call Trace:
>[  359.775534]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  359.775542]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  359.775558]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  359.775573]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  359.775590]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  359.775613]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  359.775619]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  359.775623]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  359.775628]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  359.775634]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  359.775640]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  359.775645]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  359.775650]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  359.775653] ---[ end trace 3da967cdfd47b581 ]---
>[  359.878264] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  360.132902] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  360.303458] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  360.305461] ------------[ cut here ]------------
>[  360.305501] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  360.305504] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  360.305533] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  360.305552] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  360.305556]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  360.305560]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  360.305565]  ffff880002930000 ffff880002938300 000000010000e8b9 ffff880002930000
>[  360.305570] Call Trace:
>[  360.305580]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  360.305588]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  360.305604]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  360.305620]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  360.305637]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  360.305661]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  360.305666]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  360.305671]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  360.305676]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  360.305682]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  360.305687]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  360.305692]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  360.305697]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  360.305701] ---[ end trace 3da967cdfd47b582 ]---
>[  360.361985] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  360.558957] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  360.562960] ------------[ cut here ]------------
>[  360.562986] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  360.562989] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  360.563018] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  360.563037] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  360.563041]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  360.563045]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  360.563050]  ffff880002930000 ffff880002938300 000000010000e9ba ffff880002930000
>[  360.563054] Call Trace:
>[  360.563064]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  360.563071]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  360.563087]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  360.563102]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  360.563119]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  360.563142]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  360.563148]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  360.563152]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  360.563157]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  360.563163]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  360.563168]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  360.563173]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  360.563178]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  360.563181] ---[ end trace 3da967cdfd47b583 ]---
>[  360.660451] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  360.782391] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  360.786395] ------------[ cut here ]------------
>[  360.786420] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  360.786423] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  360.786451] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  360.786470] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  360.786473]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  360.786477]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  360.786482]  ffff880002930000 ffff880002938300 000000010000ea99 ffff880002930000
>[  360.786486] Call Trace:
>[  360.786495]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  360.786502]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  360.786517]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  360.786533]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  360.786550]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  360.786573]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  360.786578]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  360.786583]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  360.786587]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  360.786593]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  360.786598]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  360.786603]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  360.786608]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  360.786611] ---[ end trace 3da967cdfd47b584 ]---
>[  360.877109] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  361.161767] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  361.323447] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  361.325447] ------------[ cut here ]------------
>[  361.325473] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  361.325476] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  361.325505] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  361.325524] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  361.325527]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  361.325532]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  361.325536]  ffff880002930000 ffff880002938300 000000010000ecb3 ffff880002930000
>[  361.325541] Call Trace:
>[  361.325551]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  361.325558]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  361.325574]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  361.325590]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  361.325607]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  361.325630]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  361.325635]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  361.325640]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  361.325644]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  361.325650]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  361.325655]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  361.325660]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  361.325665]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  361.325669] ---[ end trace 3da967cdfd47b585 ]---
>[  361.386336] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  361.753690] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  362.068016] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  362.246214] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 755 MHz (217)
>[  362.383510] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  362.387516] ------------[ cut here ]------------
>[  362.387542] WARNING: CPU: 1 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  362.387545] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  362.387573] CPU: 1 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  362.387593] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  362.387596]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  362.387601]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  362.387605]  ffff880002930000 ffff880002938300 000000010000f0d7 ffff880002930000
>[  362.387610] Call Trace:
>[  362.387620]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  362.387627]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  362.387642]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  362.387658]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  362.387675]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  362.387698]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  362.387704]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  362.387708]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  362.387713]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  362.387719]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  362.387724]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  362.387729]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  362.387734]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  362.387737] ---[ end trace 3da967cdfd47b586 ]---
>[  362.423169] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  362.811084] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  362.978674] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  362.982676] ------------[ cut here ]------------
>[  362.982703] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  362.982706] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  362.982734] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  362.982753] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  362.982757]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  362.982762]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  362.982766]  ffff880002930000 ffff880002938300 000000010000f329 ffff880002930000
>[  362.982771] Call Trace:
>[  362.982781]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  362.982788]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  362.982804]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  362.982819]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  362.982837]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  362.982860]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  362.982865]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  362.982869]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  362.982874]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  362.982880]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  362.982885]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  362.982890]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  362.982895]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  362.982898] ---[ end trace 3da967cdfd47b587 ]---
>[  363.042331] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  363.328356] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  363.330370] ------------[ cut here ]------------
>[  363.330397] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  363.330400] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  363.330428] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  363.330448] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  363.330451]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  363.330456]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  363.330461]  ffff880002930000 ffff880002938300 000000010000f484 ffff880002930000
>[  363.330465] Call Trace:
>[  363.330475]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  363.330483]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  363.330498]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  363.330514]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  363.330531]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  363.330554]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  363.330560]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  363.330564]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  363.330569]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  363.330575]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  363.330580]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  363.330585]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  363.330590]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  363.330593] ---[ end trace 3da967cdfd47b588 ]---
>[  363.365658] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  363.767328] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  364.081654] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  364.395987] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 600 MHz (210)
>[  364.570775] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  364.572776] ------------[ cut here ]------------
>[  364.572803] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  364.572806] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  364.572835] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  364.572855] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  364.572858]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  364.572863]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  364.572867]  ffff880002930000 ffff880002938300 000000010000f95c ffff880002930000
>[  364.572872] Call Trace:
>[  364.572882]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  364.572889]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  364.572905]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  364.572921]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  364.572938]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  364.572961]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  364.572966]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  364.572971]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  364.572976]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  364.572981]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  364.572987]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  364.572991]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  364.572997]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  364.573000] ---[ end trace 3da967cdfd47b589 ]---
>[  394.438475] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  394.690854] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  395.098746] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  395.145145] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 755 MHz (217)
>[  395.266596] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  395.268597] ------------[ cut here ]------------
>[  395.268623] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  395.268626] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  395.268655] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  395.268674] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  395.268677]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  395.268682]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  395.268686]  ffff880002930000 ffff880002938300 0000000100017108 ffff880002930000
>[  395.268691] Call Trace:
>[  395.268701]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  395.268708]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  395.268724]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  395.268739]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  395.268756]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  395.268779]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  395.268785]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  395.268789]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  395.268794]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  395.268800]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  395.268805]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  395.268810]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  395.268815]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  395.268819] ---[ end trace 3da967cdfd47b58a ]---
>[  395.374101] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  395.627298] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  395.631303] ------------[ cut here ]------------
>[  395.631329] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  395.631332] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  395.631360] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  395.631379] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  395.631383]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  395.631387]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  395.631392]  ffff880002930000 ffff880002938300 0000000100017272 ffff880002930000
>[  395.631397] Call Trace:
>[  395.631405]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  395.631412]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  395.631428]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  395.631444]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  395.631461]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  395.631484]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  395.631489]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  395.631494]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  395.631499]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  395.631504]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  395.631509]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  395.631514]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  395.631519]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  395.631523] ---[ end trace 3da967cdfd47b58b ]---
>[  395.673344] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  395.818673] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  395.820674] ------------[ cut here ]------------
>[  395.820699] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  395.820702] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  395.820730] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  395.820749] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  395.820753]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  395.820757]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  395.820762]  ffff880002930000 ffff880002938300 000000010001732f ffff880002930000
>[  395.820766] Call Trace:
>[  395.820776]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  395.820783]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  395.820798]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  395.820814]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  395.820831]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  395.820854]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  395.820859]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  395.820864]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  395.820869]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  395.820874]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  395.820880]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  395.820884]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  395.820889]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  395.820893] ---[ end trace 3da967cdfd47b58c ]---
>[  395.882673] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  396.248210] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  396.562538] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  396.717695] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 755 MHz (217)
>[  396.839661] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  396.841691] ------------[ cut here ]------------
>[  396.841718] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  396.841721] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  396.841749] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  396.841769] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  396.841772]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  396.841777]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  396.841781]  ffff880002930000 ffff880002938300 000000010001772a ffff880002930000
>[  396.841786] Call Trace:
>[  396.841796]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  396.841803]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  396.841819]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  396.841835]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  396.841852]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  396.841875]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  396.841880]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  396.841885]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  396.841894]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  396.841900]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  396.841905]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  396.841910]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  396.841915]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  396.841919] ---[ end trace 3da967cdfd47b58d ]---
>[  396.941072] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  396.946344] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  397.188348] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  397.359675] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  397.363681] ------------[ cut here ]------------
>[  397.363707] WARNING: CPU: 0 PID: 1115 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  397.363710] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  397.363739] CPU: 0 PID: 1115 Comm: kworker/u8:4 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  397.363758] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  397.363762]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  397.363766]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  397.363771]  ffff880002930000 ffff880002938300 0000000100017933 ffff880002930000
>[  397.363776] Call Trace:
>[  397.363785]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  397.363793]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  397.363808]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  397.363824]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  397.363841]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  397.363864]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  397.363870]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  397.363875]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  397.363879]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  397.363885]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  397.363890]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  397.363895]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  397.363900]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  397.363904] ---[ end trace 3da967cdfd47b58e ]---
>[  397.377944] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  397.631205] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  397.631322] ------------[ cut here ]------------
>[  397.631348] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  397.631351] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  397.631379] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  397.631399] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  397.631402]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  397.631407]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  397.631411]  ffff880002930000 ffff880002938300 0000000100017a40 ffff880002930000
>[  397.631416] Call Trace:
>[  397.631425]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  397.631432]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  397.631448]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  397.631464]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  397.631481]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  397.631504]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  397.631509]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  397.631514]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  397.631519]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  397.631524]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  397.631530]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  397.631535]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  397.631540]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  397.631543] ---[ end trace 3da967cdfd47b58f ]---
>[  398.316209] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  398.437777] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  398.441782] ------------[ cut here ]------------
>[  398.441808] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  398.441811] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  398.441839] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  398.441859] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  398.441862]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  398.441867]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  398.441871]  ffff880002930000 ffff880002938300 0000000100017d67 ffff880002930000
>[  398.441876] Call Trace:
>[  398.441885]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  398.441892]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  398.441908]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  398.441924]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  398.441941]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  398.441964]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  398.441969]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  398.441974]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  398.441979]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  398.441984]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  398.441990]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  398.441994]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  398.442000]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  398.442003] ---[ end trace 3da967cdfd47b590 ]---
>[  398.498330] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  398.657414] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  398.869731] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  399.057987] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  399.061989] ------------[ cut here ]------------
>[  399.062017] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  399.062020] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  399.062049] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  399.062068] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  399.062072]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  399.062076]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  399.062081]  ffff880002930000 ffff880002938300 0000000100017fd2 ffff880002930000
>[  399.062086] Call Trace:
>[  399.062095]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  399.062103]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  399.062118]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  399.062134]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  399.062151]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  399.062174]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  399.062180]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  399.062184]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  399.062189]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  399.062195]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  399.062200]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  399.062205]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  399.062210]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  399.062213] ---[ end trace 3da967cdfd47b591 ]---
>[  399.105170] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  399.290980] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  399.412677] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  399.414678] ------------[ cut here ]------------
>[  399.414704] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  399.414706] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  399.414735] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  399.414754] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  399.414758]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  399.414762]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  399.414767]  ffff880002930000 ffff880002938300 0000000100018132 ffff880002930000
>[  399.414771] Call Trace:
>[  399.414781]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  399.414788]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  399.414804]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  399.414819]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  399.414837]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  399.414860]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  399.414865]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  399.414870]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  399.414874]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  399.414880]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  399.414885]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  399.414890]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  399.414895]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  399.414899] ---[ end trace 3da967cdfd47b592 ]---
>[  399.543093] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  399.876355] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  400.190687] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  400.505017] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 600 MHz (210)
>[  400.819351] [drm:valleyview_set_rps] GPU freq request from 600 MHz (210) to 422 MHz (202)
>[  401.133683] [drm:valleyview_set_rps] GPU freq request from 422 MHz (202) to 178 MHz (191)
>[  429.961650] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  430.140562] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  430.142560] ------------[ cut here ]------------
>[  430.142588] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  430.142591] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  430.142620] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  430.142639] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  430.142643]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  430.142647]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  430.142652]  ffff880002930000 ffff880002938300 000000010001f8fe ffff880002930000
>[  430.142657] Call Trace:
>[  430.142667]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  430.142674]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  430.142690]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  430.142705]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  430.142723]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  430.142746]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  430.142751]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  430.142756]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  430.142760]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  430.142766]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  430.142772]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  430.142776]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  430.142781]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  430.142785] ---[ end trace 3da967cdfd47b593 ]---
>[  430.203518] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  430.253804] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  430.275246] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  430.606255] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  430.667571] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 755 MHz (217)
>[  430.793833] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  430.797837] ------------[ cut here ]------------
>[  430.797864] WARNING: CPU: 1 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  430.797867] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  430.797895] CPU: 1 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  430.797915] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  430.797918]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  430.797923]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  430.797927]  ffff880002930000 ffff880002938300 000000010001fb8c ffff880002930000
>[  430.797932] Call Trace:
>[  430.797942]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  430.797949]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  430.797965]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  430.797981]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  430.797998]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  430.798021]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  430.798027]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  430.798031]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  430.798036]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  430.798042]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  430.798047]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  430.798052]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  430.798058]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  430.798061] ---[ end trace 3da967cdfd47b594 ]---
>[  430.872830] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  431.279781] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  431.283785] ------------[ cut here ]------------
>[  431.283812] WARNING: CPU: 1 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  431.283815] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  431.283844] CPU: 1 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  431.283863] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  431.283866]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  431.283871]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  431.283875]  ffff880002930000 ffff880002938300 000000010001fd71 ffff880002930000
>[  431.283880] Call Trace:
>[  431.283890]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  431.283897]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  431.283913]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  431.283929]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  431.283946]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  431.283969]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  431.283974]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  431.283979]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  431.283984]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  431.283989]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  431.283995]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  431.283999]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  431.284005]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  431.284008] ---[ end trace 3da967cdfd47b595 ]---
>[  431.359633] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  431.396021] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  431.697592] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  431.701598] ------------[ cut here ]------------
>[  431.701625] WARNING: CPU: 1 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  431.701627] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  431.701656] CPU: 1 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  431.701675] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  431.701679]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  431.701683]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  431.701688]  ffff880002930000 ffff880002938300 000000010001ff12 ffff880002930000
>[  431.701692] Call Trace:
>[  431.701702]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  431.701709]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  431.701725]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  431.701741]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  431.701758]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  431.701781]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  431.701786]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  431.701791]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  431.701795]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  431.701801]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  431.701807]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  431.701811]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  431.701817]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  431.701820] ---[ end trace 3da967cdfd47b596 ]---
>[  432.819191] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  432.944024] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  432.948026] ------------[ cut here ]------------
>[  432.948053] WARNING: CPU: 1 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  432.948056] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  432.948084] CPU: 1 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  432.948104] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  432.948107]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  432.948112]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  432.948116]  ffff880002930000 ffff880002938300 00000001000203ee ffff880002930000
>[  432.948121] Call Trace:
>[  432.948131]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  432.948139]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  432.948155]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  432.948171]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  432.948188]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  432.948211]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  432.948217]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  432.948222]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  432.948226]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  432.948233]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  432.948238]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  432.948243]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  432.948248]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  432.948251] ---[ end trace 3da967cdfd47b597 ]---
>[  433.032899] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  433.318752] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  433.322757] ------------[ cut here ]------------
>[  433.322784] WARNING: CPU: 1 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  433.322786] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  433.322814] CPU: 1 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  433.322833] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  433.322836]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  433.322841]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  433.322845]  ffff880002930000 ffff880002938300 0000000100020564 ffff880002930000
>[  433.322850] Call Trace:
>[  433.322860]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  433.322867]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  433.322882]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  433.322898]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  433.322915]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  433.322938]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  433.322944]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  433.322948]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  433.322953]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  433.322959]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  433.322964]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  433.322969]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  433.322974]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  433.322977] ---[ end trace 3da967cdfd47b598 ]---
>[  433.323023] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  433.438348] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  433.874242] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  434.177066] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 755 MHz (217)
>[  434.303676] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  434.303797] ------------[ cut here ]------------
>[  434.303835] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  434.303837] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  434.303866] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  434.303886] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  434.303889]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  434.303894]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  434.303899]  ffff880002930000 ffff880002938300 0000000100020939 ffff880002930000
>[  434.303903] Call Trace:
>[  434.303914]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  434.303922]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  434.303938]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  434.303954]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  434.303971]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  434.303996]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  434.304002]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  434.304006]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  434.304011]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  434.304017]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  434.304022]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  434.304027]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  434.304032]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  434.304036] ---[ end trace 3da967cdfd47b599 ]---
>[  434.390077] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  434.616690] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  434.907279] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  435.077181] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  435.079183] ------------[ cut here ]------------
>[  435.079210] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  435.079213] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  435.079242] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  435.079261] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  435.079264]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  435.079269]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  435.079273]  ffff880002930000 ffff880002938300 0000000100020c3d ffff880002930000
>[  435.079278] Call Trace:
>[  435.079288]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  435.079295]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  435.079311]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  435.079326]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  435.079344]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  435.079367]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  435.079372]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  435.079377]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  435.079381]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  435.079387]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  435.079392]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  435.079397]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  435.079402]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  435.079405] ---[ end trace 3da967cdfd47b59a ]---
>[  435.158618] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  435.364265] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 755 MHz (217)
>[  435.485979] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  435.487989] ------------[ cut here ]------------
>[  435.488015] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  435.488018] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  435.488046] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  435.488066] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  435.488069]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  435.488074]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  435.488078]  ffff880002930000 ffff880002938300 0000000100020dd5 ffff880002930000
>[  435.488083] Call Trace:
>[  435.488093]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  435.488100]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  435.488115]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  435.488131]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  435.488148]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  435.488171]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  435.488177]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  435.488182]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  435.488186]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  435.488192]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  435.488198]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  435.488202]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  435.488208]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  435.488211] ---[ end trace 3da967cdfd47b59b ]---
>[  435.612699] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  435.940577] [drm:valleyview_set_rps] GPU freq request from 755 MHz (217) to 733 MHz (216)
>[  436.254906] [drm:valleyview_set_rps] GPU freq request from 733 MHz (216) to 688 MHz (214)
>[  436.569241] [drm:valleyview_set_rps] GPU freq request from 688 MHz (214) to 600 MHz (210)
>[  436.711367] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  436.715371] ------------[ cut here ]------------
>[  436.715397] WARNING: CPU: 0 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  436.715400] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  436.715429] CPU: 0 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  436.715448] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  436.715452]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  436.715456]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  436.715461]  ffff880002930000 ffff880002938300 000000010002129e ffff880002930000
>[  436.715466] Call Trace:
>[  436.715475]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  436.715483]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  436.715499]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  436.715514]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  436.715532]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  436.715555]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  436.715560]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  436.715565]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  436.715569]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  436.715575]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  436.715580]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  436.715585]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  436.715590]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  436.715594] ---[ end trace 3da967cdfd47b59c ]---
>[  468.360919] Core dump to |/usr/share/apport/apport 3927 3 0 pipe failed
>[  468.361457] [drm:valleyview_set_rps] GPU freq request from 178 MHz (191) to 755 MHz (217)
>[  468.363838] [drm:intel_crtc_set_config] [CRTC:6] [FB:32] #connectors=1 (x y) (0 0)
>[  468.363849] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:6], mode_changed=0, fb_changed=0
>[  468.363854] [drm:intel_modeset_stage_output_state] [CONNECTOR:25:eDP-1] to [CRTC:6]
>[  468.363858] [drm:intel_crtc_set_config] [CRTC:11] [NOFB]
>[  468.363863] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:11], mode_changed=0, fb_changed=0
>[  468.363866] [drm:intel_modeset_stage_output_state] [CONNECTOR:25:eDP-1] to [CRTC:6]
>[  468.485437] [drm:vlv_force_gfx_clock] *ERROR* timeout waiting for GFX clock force-off (00000008)
>[  468.489440] ------------[ cut here ]------------
>[  468.489466] WARNING: CPU: 1 PID: 4012 at drivers/gpu/drm/i915/i915_drv.c:1190 vlv_force_gfx_clock+0x39/0x1e7 [i915]()
>[  468.489470] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 video button drm_kms_helper drm
>[  468.489499] CPU: 1 PID: 4012 Comm: kworker/u8:0 Tainted: G        W     3.16.0-rc4_drm-intel-nightly_2a9005_20140708+ #318
>[  468.489518] Workqueue: i915 i915_gem_idle_work_handler [i915]
>[  468.489521]  0000000000000000 0000000000000009 ffffffff817803ed 0000000000000000
>[  468.489526]  ffffffff8103986c ffff8800029370c0 ffffffffa0064b88 ffff880002938300
>[  468.489531]  ffff880002930000 ffff880002938300 0000000100028e7e ffff880002930000
>[  468.489535] Call Trace:
>[  468.489545]  [<ffffffff817803ed>] ? dump_stack+0x41/0x51
>[  468.489553]  [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90
>[  468.489569]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  468.489584]  [<ffffffffa0064b88>] ? vlv_force_gfx_clock+0x39/0x1e7 [i915]
>[  468.489601]  [<ffffffffa006fe99>] ? gen6_rps_idle+0x113/0x185 [i915]
>[  468.489624]  [<ffffffffa00abbbc>] ? intel_mark_idle+0x181/0x1a6 [i915]
>[  468.489630]  [<ffffffff8104d636>] ? process_one_work+0x1e2/0x363
>[  468.489635]  [<ffffffff8104de16>] ? worker_thread+0x2f2/0x3f1
>[  468.489639]  [<ffffffff8104db24>] ? pool_mayday_timeout+0xf2/0xf2
>[  468.489645]  [<ffffffff8105258a>] ? kthread+0xc5/0xcd
>[  468.489650]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  468.489655]  [<ffffffff81785eec>] ? ret_from_fork+0x7c/0xb0
>[  468.489660]  [<ffffffff810524c5>] ? kthread_freezable_should_stop+0x40/0x40
>[  468.489664] ---[ end trace 3da967cdfd47b59d ]---
>[  602.260241] [drm:intel_set_memory_cxsr] memory self-refresh is disabled
>[  602.284177] [drm:_edp_panel_vdd_on] Turning eDP VDD on
>[  602.284182] [drm:_edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[  602.284184] [drm:intel_edp_backlight_off] 
>[  602.485885] [drm:intel_panel_actually_set_backlight] set backlight PWM = 0
>[  602.486173] [drm:intel_edp_panel_off] Turn eDP power off
>[  602.486176] [drm:wait_panel_off] Wait for panel power off time
>[  602.486179] [drm:wait_panel_status] mask b0000000 value 00000000 status e0000003 control abcd0000
>[  602.528279] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000, dig 0x00000000
>[  602.528281] [drm:intel_hpd_irq_handler] digital hpd port 2 0
>[  602.529520] [drm:wait_panel_status] Wait complete
>[  602.575743] [drm:intel_dp_link_down] 
>[  602.626847] [drm:intel_set_memory_cxsr] memory self-refresh is disabled
>[  602.626851] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=2, cursor=2, SR: plane=0, cursor=0
>[  602.658926] [drm:check_encoder_state] [ENCODER:15:DAC-15]
>[  602.658929] [drm:check_encoder_state] [ENCODER:16:TMDS-16]
>[  602.658931] [drm:check_encoder_state] [ENCODER:20:TMDS-20]
>[  602.658933] [drm:check_encoder_state] [ENCODER:22:TMDS-22]
>[  602.658935] [drm:check_encoder_state] [ENCODER:24:TMDS-24]
>[  602.658937] [drm:check_crtc_state] [CRTC:6]
>[  602.658940] [drm:check_crtc_state] [CRTC:11]

Actions: View

Attachments on bug 75244: 94408 | 100521 | 100700 | 101842 | 102042 | 102414 | 102457

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.