| Summary: | [BYT Regression]"WARNING: CPU: 1 PID: 1234 at drivers/gpu/drm/i915/intel_dp.c:1184 intel_enable_dp+0x41/0x79 [i915]()" after boot | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | Guo Jinxian <jinxianx.guo> | ||||
| Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Status: | CLOSED FIXED | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | normal | ||||||
| Priority: | highest | CC: | intel-gfx-bugs, ming.yao | ||||
| Version: | unspecified | ||||||
| Hardware: | Other | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
| Attachments: |
|
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Test failed while running igt/testdisplay root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./testdisplay CRTC(7):[0] 1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000 root@x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep "<[1-4]>"|grep drm <4>[ 1322.518121] WARNING: CPU: 0 PID: 4605 at drivers/gpu/drm/i915/intel_dp.c:1235 intel_enable_dp+0x41/0x79 [i915]() <4>[ 1322.518144] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_controller pcspkr r8169 i2c_i801 lpc_ich mfd_core snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery iosf_mbi wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm <4>[ 1322.518149] CPU: 0 PID: 4605 Comm: testdisplay Tainted: G W 3.16.0-rc6_drm-intel-nightly_af1aab_20140724+ #764 <4>[ 1322.518357] [<ffffffffa000bf1d>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm] <4>[ 1322.518363] [<ffffffffa0050a5a>] ? restore_fbdev_mode+0x8f/0xa8 [drm_kms_helper] <4>[ 1322.518369] [<ffffffffa0050a90>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper] <4>[ 1322.518375] [<ffffffffa0051db7>] ? drm_fb_helper_set_par+0x3a/0x58 [drm_kms_helper] <4>[ 1322.518457] [<ffffffffa0002fb5>] ? drm_ioctl+0x2bf/0x3c0 [drm] <4>[ 1322.873691] WARNING: CPU: 1 PID: 4605 at drivers/gpu/drm/i915/intel_dp.c:1293 edp_panel_vdd_off+0x33/0x7a [i915]() <4>[ 1322.873714] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_controller pcspkr r8169 i2c_i801 lpc_ich mfd_core snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery iosf_mbi wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm <4>[ 1322.873719] CPU: 1 PID: 4605 Comm: testdisplay Tainted: G W 3.16.0-rc6_drm-intel-nightly_af1aab_20140724+ #764 <4>[ 1322.873949] [<ffffffffa000bf1d>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm] <4>[ 1322.873956] [<ffffffffa0050a5a>] ? restore_fbdev_mode+0x8f/0xa8 [drm_kms_helper] <4>[ 1322.873962] [<ffffffffa0050a90>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper] <4>[ 1322.873968] [<ffffffffa0051db7>] ? drm_fb_helper_set_par+0x3a/0x58 [drm_kms_helper] <4>[ 1322.874049] [<ffffffffa0002fb5>] ? drm_ioctl+0x2bf/0x3c0 [drm] Another CallTrace after system boot. root@x-bytm02:~# dmesg -r|egrep "<[1-4]>"|grep drm <4>[ 7.007897] WARNING: CPU: 1 PID: 1287 at drivers/gpu/drm/i915/intel_dp.c:1235 intel_edp_panel_vdd_on+0x30/0x32 [i915]() <4>[ 7.007922] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915(+) button video drm_kms_helper drm <4>[ 7.007927] CPU: 1 PID: 1287 Comm: udevd Not tainted 3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766 <4>[ 7.008405] [<ffffffffa000cd2a>] drm_mode_set_config_internal+0x5a/0xd2 [drm] <4>[ 7.008417] [<ffffffffa005f098>] restore_fbdev_mode+0x9c/0xba [drm_kms_helper] <4>[ 7.008428] [<ffffffffa005f172>] drm_fb_helper_restore_fbdev_mode_unlocked+0x27/0x3c [drm_kms_helper] <4>[ 7.008438] [<ffffffffa00604ab>] drm_fb_helper_set_par+0x44/0x64 [drm_kms_helper] <4>[ 7.008558] [<ffffffffa005fca2>] drm_fb_helper_initial_config+0x358/0x401 [drm_kms_helper] <4>[ 7.008695] [<ffffffffa0007e4d>] drm_dev_register+0x84/0xfd [drm] <4>[ 7.008713] [<ffffffffa000a29d>] drm_get_pci_dev+0xfc/0x1b3 [drm] <4>[ 7.008851] [<ffffffffa000a3b9>] drm_pci_init+0x65/0xe8 [drm] <4>[ 7.170138] WARNING: CPU: 0 PID: 1287 at drivers/gpu/drm/i915/intel_dp.c:1293 edp_panel_vdd_off+0x3b/0x7d [i915]() <4>[ 7.170158] Modules linked in: uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915(+) button video drm_kms_helper drm <4>[ 7.170162] CPU: 0 PID: 1287 Comm: udevd Tainted: G W 3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766 <4>[ 7.170683] [<ffffffffa000cd2a>] drm_mode_set_config_internal+0x5a/0xd2 [drm] <4>[ 7.170694] [<ffffffffa005f098>] restore_fbdev_mode+0x9c/0xba [drm_kms_helper] <4>[ 7.170704] [<ffffffffa005f172>] drm_fb_helper_restore_fbdev_mode_unlocked+0x27/0x3c [drm_kms_helper] <4>[ 7.170715] [<ffffffffa00604ab>] drm_fb_helper_set_par+0x44/0x64 [drm_kms_helper] <4>[ 7.170831] [<ffffffffa005fca2>] drm_fb_helper_initial_config+0x358/0x401 [drm_kms_helper] <4>[ 7.170980] [<ffffffffa0007e4d>] drm_dev_register+0x84/0xfd [drm] <4>[ 7.170999] [<ffffffffa000a29d>] drm_get_pci_dev+0xfc/0x1b3 [drm] <4>[ 7.171112] [<ffffffffa000a3b9>] drm_pci_init+0x65/0xe8 [drm] This bug is able to reproduce on latest -nightly(79e44bfa10063ee529140e88fdc401c4ce07d644) while running test igt/kms_fence_pin_leak root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_fence_pin_leak IGT-Version: 1.7-gac31f19 (x86_64) (Linux: 3.16.0_drm-intel-nightly_79e44b_20140806+ x86_64) ................................................................ root@x-byt06:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep "<[1-4]>"|grep drm <4>[ 149.699322] WARNING: CPU: 0 PID: 3940 at drivers/gpu/drm/i915/intel_dp.c:1235 intel_enable_dp+0x41/0x79 [i915]() <4>[ 149.699349] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm serio_raw pcspkr i2c_i801 lpc_ich mfd_core snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 button video drm_kms_helper drm <4>[ 149.699354] CPU: 0 PID: 3940 Comm: kms_fence_pin_l Tainted: G W 3.16.0_drm-intel-nightly_79e44b_20140806+ #1148 <4>[ 149.699557] [<ffffffffa000bf02>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm] <4>[ 149.699565] [<ffffffffa0050a74>] ? restore_fbdev_mode+0xa9/0xc2 [drm_kms_helper] <4>[ 149.699571] [<ffffffffa0050aaa>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper] <4>[ 149.699580] [<ffffffffa0051edb>] ? drm_fb_helper_set_par+0x3a/0x59 [drm_kms_helper] <4>[ 149.699634] [<ffffffffa0002f5c>] ? drm_ioctl+0x27a/0x3c0 [drm] <4>[ 149.896455] WARNING: CPU: 1 PID: 3940 at drivers/gpu/drm/i915/intel_dp.c:1306 edp_panel_vdd_off+0x33/0x58 [i915]() <4>[ 149.896471] Modules linked in: dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm serio_raw pcspkr i2c_i801 lpc_ich mfd_core snd_timer snd soundcore iosf_mbi battery ac acpi_cpufreq i915 button video drm_kms_helper drm <4>[ 149.896475] CPU: 1 PID: 3940 Comm: kms_fence_pin_l Tainted: G W 3.16.0_drm-intel-nightly_79e44b_20140806+ #1148 <4>[ 149.896671] [<ffffffffa000bf02>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm] <4>[ 149.896677] [<ffffffffa0050a74>] ? restore_fbdev_mode+0xa9/0xc2 [drm_kms_helper] <4>[ 149.896682] [<ffffffffa0050aaa>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper] <4>[ 149.896690] [<ffffffffa0051edb>] ? drm_fb_helper_set_par+0x3a/0x59 [drm_kms_helper] <4>[ 149.896738] [<ffffffffa0002f5c>] ? drm_ioctl+0x27a/0x3c0 [drm] This bug is not able to reproduce on latest drm-intel-nightly(c3b4c0436dffd0a2d25d9583bd6c3e64f5090603) after system boot. commit c3b4c0436dffd0a2d25d9583bd6c3e64f5090603 Author: Daniel Vetter <daniel.vetter@ffwll.ch> AuthorDate: Thu Aug 7 16:50:48 2014 +0200 Commit: Daniel Vetter <daniel.vetter@ffwll.ch> CommitDate: Thu Aug 7 16:50:48 2014 +0200 drm-intel-nightly: 2014y-08m-07d-16h-50m-27s integration manifest ----------------------------- It also works well while running igt/testdisplay and igt/kms_fence_pin_leak Linux x-byt01 3.16.0_drm-intel-nightly_c3b4c0_20140808+ #1216 SMP Fri Aug 8 11:24:46 CST 2014 x86_64 x86_64 x86_64 GNU/Linux [root@x-byt01 tests]# ./testdisplay CRTC(7):[0] 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 [root@x-byt01 tests]# dmesg -r|egrep "<[1-4]>"|grep drm [root@x-byt01 tests]# [root@x-byt01 tests]# ./kms_fence_pin_leak IGT-Version: 1.7-gac31f19 (x86_64) (Linux: 3.16.0_drm-intel-nightly_c3b4c0_20140808+ x86_64) ................................................................ [root@x-byt01 tests]# dmesg -r|egrep "<[1-4]>"|grep drm [root@x-byt01 tests]# Please run a re-test on current nightly to ensure the bug really isn't there anymore, so we can close it. (In reply to comment #5) > Please run a re-test on current nightly to ensure the bug really isn't there > anymore, so we can close it. Test passed on latest -nightly(4a3d32734bdcef6813b31f06a58430436e98711e). Verified. Closing verified+fixed. |
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Created attachment 103372 [details] dmesg ==System Environment== -------------------------- Regression: Yes Good commit on -next-queued: 1cf0ba14740d96fbf6f58a201f000a34b74f4725 Non-working platforms: BYT ==kernel== -------------------------- origin/drm-intel-nightly: af1aaba219fdd90ca1b30f9b8d8d19352224f170(fails) drm-intel-nightly: 2014y-07m-23d-20h-15m-10s integration manifest origin/drm-intel-next-queued: 2b8ee5710915a244b807fbe3427299d007d19e89(fails) drm/i915: Allow overlapping userptr objects origin/drm-intel-fixes: eedd10f45bdcb2a5b2afa35f845e080c3bc984f2(works) drm/i915: Simplify i915_gem_release_all_mmaps() ==Bug detailed description== ----------------------------- "WARNING: CPU: 1 PID: 1234 at drivers/gpu/drm/i915/intel_dp.c:1184 intel_enable_dp+0x41/0x79 [i915]()" after boot Dmesg Shows: [ 3.504635] WARNING: CPU: 1 PID: 1235 at drivers/gpu/drm/i915/intel_dp.c:1201 intel_enable_dp+0x41/0x79 [i915]() [ 3.504635] eDP VDD already requested on [ 3.504641] Modules linked in: i915(+) video button drm_kms_helper drm [ 3.504645] CPU: 1 PID: 1235 Comm: udevd Not tainted 3.16.0-rc4_drm-intel-next-queued_1dd738_20140723+ #744 [ 3.504649] 0000000000000000 0000000000000009 ffffffff817803ed ffff8800712b7418 [ 3.504651] ffffffff8103986c ffff880071139000 ffffffffa00c68ec 00000000abcd0008 [ 3.504654] ffff8800710268d8 ffff880002fb0000 ffff8800710268d8 ffff8800711d5000 [ 3.504655] Call Trace: [ 3.504663] [<ffffffff817803ed>] ? dump_stack+0x41/0x51 [ 3.504668] [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90 [ 3.504710] [<ffffffffa00c68ec>] ? intel_enable_dp+0x41/0x79 [i915] [ 3.504713] [<ffffffff8103991c>] ? warn_slowpath_fmt+0x45/0x4a [ 3.504756] [<ffffffffa00c68ec>] ? intel_enable_dp+0x41/0x79 [i915] [ 3.504800] [<ffffffffa00c6a3a>] ? vlv_pre_enable_dp+0x100/0x11a [i915] [ 3.504841] [<ffffffffa00ae83c>] ? valleyview_crtc_enable+0x942/0xa36 [i915] [ 3.504883] [<ffffffffa00abc1f>] ? __intel_set_mode+0x111c/0x1224 [i915] [ 3.504886] [<ffffffff8177d3cc>] ? printk+0x4f/0x54 [ 3.504928] [<ffffffffa00b1c75>] ? intel_set_mode+0xd/0x27 [i915] [ 3.504970] [<ffffffffa00b2852>] ? intel_crtc_set_config+0x705/0xa5b [i915] [ 3.504984] [<ffffffffa000bf3b>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm] [ 3.504989] [<ffffffffa004bf94>] ? restore_fbdev_mode+0x8f/0xa8 [drm_kms_helper] [ 3.504993] [<ffffffffa004bfca>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper] [ 3.504997] [<ffffffffa004d1e2>] ? drm_fb_helper_set_par+0x39/0x58 [drm_kms_helper] [ 3.505038] [<ffffffffa00bb7dc>] ? intel_fbdev_set_par+0x11/0x55 [i915] [ 3.505043] [<ffffffff813650c9>] ? fbcon_init+0x2ff/0x408 [ 3.505047] [<ffffffff813b9485>] ? visual_init+0xaf/0x102 [ 3.505051] [<ffffffff813bac22>] ? do_bind_con_driver+0x1a1/0x2ca [ 3.505054] [<ffffffff813bae7d>] ? do_take_over_console+0x132/0x162 [ 3.505057] [<ffffffff813647b6>] ? do_fbcon_takeover+0x53/0x96 [ 3.505061] [<ffffffff81055751>] ? notifier_call_chain+0x2e/0x59 [ 3.505064] [<ffffffff81055890>] ? __blocking_notifier_call_chain+0x43/0x5d [ 3.505067] [<ffffffff8136e37d>] ? register_framebuffer+0x23f/0x29d [ 3.505072] [<ffffffffa004cab8>] ? drm_fb_helper_initial_config+0x359/0x3ff [drm_kms_helper] [ 3.505112] [<ffffffffa009cb9a>] ? gen6_write32+0x6c/0xbf [i915] [ 3.505157] [<ffffffffa00d8d8e>] ? i915_driver_load+0xc63/0xe90 [i915] [ 3.505162] [<ffffffff813d5170>] ? get_device+0x10/0x1c [ 3.505172] [<ffffffffa000764f>] ? drm_dev_register+0x74/0xe7 [drm] [ 3.505175] [<ffffffff8137f362>] ? acpi_pci_irq_enable+0x11c/0x12f [ 3.505184] [<ffffffffa00097de>] ? drm_get_pci_dev+0xf4/0x1af [drm] [ 3.505188] [<ffffffff81350d4a>] ? local_pci_probe+0x36/0x7c [ 3.505192] [<ffffffff8132a211>] ? ida_get_new_above+0x171/0x18b [ 3.505194] [<ffffffff81350fee>] ? pci_device_probe+0xcc/0xf0 [ 3.505198] [<ffffffff813d8af6>] ? driver_probe_device+0x9d/0x1d5 [ 3.505201] [<ffffffff813d8c2e>] ? driver_probe_device+0x1d5/0x1d5 [ 3.505204] [<ffffffff813d8c81>] ? __driver_attach+0x53/0x73 [ 3.505207] [<ffffffff813d73ee>] ? bus_for_each_dev+0x4e/0x7f [ 3.505210] [<ffffffff813d83a4>] ? bus_add_driver+0xe7/0x1cc [ 3.505213] [<ffffffff813d92ca>] ? driver_register+0x82/0xb5 [ 3.505216] [<ffffffffa0118000>] ? 0xffffffffa0117fff [ 3.505219] [<ffffffff81000301>] ? do_one_initcall+0xe3/0x176 [ 3.505223] [<ffffffff810f5c86>] ? __vunmap+0x8c/0xc4 [ 3.505227] [<ffffffff8108bf6d>] ? load_module+0x1821/0x1b04 [ 3.505231] [<ffffffff81089b8d>] ? module_unload_free+0xca/0xca [ 3.505234] [<ffffffff8108c2e0>] ? SyS_init_module+0x90/0x9b [ 3.505238] [<ffffffff81785f92>] ? system_call_fastpath+0x16/0x1b [ 3.702152] WARNING: CPU: 0 PID: 1235 at drivers/gpu/drm/i915/intel_dp.c:1259 edp_panel_vdd_off+0x32/0x77 [i915]() [ 3.702153] eDP VDD not forced on [ 3.702157] Modules linked in: i915(+) video button drm_kms_helper drm [ 3.702160] CPU: 0 PID: 1235 Comm: udevd Tainted: G W 3.16.0-rc4_drm-intel-next-queued_1dd738_20140723+ #744 [ 3.702164] 0000000000000000 0000000000000009 ffffffff817803ed ffff8800712b73f8 [ 3.702166] ffffffff8103986c 00000000001e1200 ffffffffa00c4d46 0000000080000008 [ 3.702169] ffff8800710268d8 ffff880002fb0001 ffff8800710268d8 ffff8800711d5000 [ 3.702170] Call Trace: [ 3.702174] [<ffffffff817803ed>] ? dump_stack+0x41/0x51 [ 3.702178] [<ffffffff8103986c>] ? warn_slowpath_common+0x78/0x90 [ 3.702220] [<ffffffffa00c4d46>] ? edp_panel_vdd_off+0x32/0x77 [i915] [ 3.702224] [<ffffffff8103991c>] ? warn_slowpath_fmt+0x45/0x4a [ 3.702266] [<ffffffffa00c4d46>] ? edp_panel_vdd_off+0x32/0x77 [i915] [ 3.702308] [<ffffffffa00c6913>] ? intel_enable_dp+0x68/0x79 [i915] [ 3.702350] [<ffffffffa00c6a3a>] ? vlv_pre_enable_dp+0x100/0x11a [i915] [ 3.702392] [<ffffffffa00ae83c>] ? valleyview_crtc_enable+0x942/0xa36 [i915] [ 3.702434] [<ffffffffa00abc1f>] ? __intel_set_mode+0x111c/0x1224 [i915] [ 3.702436] [<ffffffff8177d3cc>] ? printk+0x4f/0x54 [ 3.702478] [<ffffffffa00b1c75>] ? intel_set_mode+0xd/0x27 [i915] [ 3.702520] [<ffffffffa00b2852>] ? intel_crtc_set_config+0x705/0xa5b [i915] [ 3.702530] [<ffffffffa000bf3b>] ? drm_mode_set_config_internal+0x4b/0xb3 [drm] [ 3.702534] [<ffffffffa004bf94>] ? restore_fbdev_mode+0x8f/0xa8 [drm_kms_helper] [ 3.702538] [<ffffffffa004bfca>] ? drm_fb_helper_restore_fbdev_mode_unlocked+0x1d/0x34 [drm_kms_helper] [ 3.702542] [<ffffffffa004d1e2>] ? drm_fb_helper_set_par+0x39/0x58 [drm_kms_helper] [ 3.702583] [<ffffffffa00bb7dc>] ? intel_fbdev_set_par+0x11/0x55 [i915] [ 3.702586] [<ffffffff813650c9>] ? fbcon_init+0x2ff/0x408 [ 3.702590] [<ffffffff813b9485>] ? visual_init+0xaf/0x102 [ 3.702593] [<ffffffff813bac22>] ? do_bind_con_driver+0x1a1/0x2ca [ 3.702596] [<ffffffff813bae7d>] ? do_take_over_console+0x132/0x162 [ 3.702599] [<ffffffff813647b6>] ? do_fbcon_takeover+0x53/0x96 [ 3.702602] [<ffffffff81055751>] ? notifier_call_chain+0x2e/0x59 [ 3.702604] [<ffffffff81055890>] ? __blocking_notifier_call_chain+0x43/0x5d [ 3.702608] [<ffffffff8136e37d>] ? register_framebuffer+0x23f/0x29d [ 3.702612] [<ffffffffa004cab8>] ? drm_fb_helper_initial_config+0x359/0x3ff [drm_kms_helper] [ 3.702652] [<ffffffffa009cb9a>] ? gen6_write32+0x6c/0xbf [i915] [ 3.702697] [<ffffffffa00d8d8e>] ? i915_driver_load+0xc63/0xe90 [i915] [ 3.702700] [<ffffffff813d5170>] ? get_device+0x10/0x1c [ 3.702710] [<ffffffffa000764f>] ? drm_dev_register+0x74/0xe7 [drm] [ 3.702713] [<ffffffff8137f362>] ? acpi_pci_irq_enable+0x11c/0x12f [ 3.702722] [<ffffffffa00097de>] ? drm_get_pci_dev+0xf4/0x1af [drm] [ 3.702725] [<ffffffff81350d4a>] ? local_pci_probe+0x36/0x7c [ 3.702727] [<ffffffff8132a211>] ? ida_get_new_above+0x171/0x18b [ 3.702730] [<ffffffff81350fee>] ? pci_device_probe+0xcc/0xf0 [ 3.702733] [<ffffffff813d8af6>] ? driver_probe_device+0x9d/0x1d5 [ 3.702736] [<ffffffff813d8c2e>] ? driver_probe_device+0x1d5/0x1d5 [ 3.702739] [<ffffffff813d8c81>] ? __driver_attach+0x53/0x73 [ 3.702742] [<ffffffff813d73ee>] ? bus_for_each_dev+0x4e/0x7f [ 3.702745] [<ffffffff813d83a4>] ? bus_add_driver+0xe7/0x1cc [ 3.702748] [<ffffffff813d92ca>] ? driver_register+0x82/0xb5 [ 3.702750] [<ffffffffa0118000>] ? 0xffffffffa0117fff [ 3.702753] [<ffffffff81000301>] ? do_one_initcall+0xe3/0x176 [ 3.702756] [<ffffffff810f5c86>] ? __vunmap+0x8c/0xc4 [ 3.702759] [<ffffffff8108bf6d>] ? load_module+0x1821/0x1b04 [ 3.702762] [<ffffffff81089b8d>] ? module_unload_free+0xca/0xca [ 3.702766] [<ffffffff8108c2e0>] ? SyS_init_module+0x90/0x9b [ 3.702768] [<ffffffff81785f92>] ? system_call_fastpath+0x16/0x1b Reproduce steps: ------------------------- 1. boot device 2. dmesg -r|egrep "<[1-4]>"|grep drm