Attachment 103388 Details for Bug 81703 – dmesg

dmesg

dmesg_bytm02_kms_plane_0724.txt (text/plain), 83.20 KB, created by lu hua on 2014-07-24 08:02:33 UTC

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Creator: lu hua

Created: 2014-07-24 08:02:33 UTC

Size: 83.20 KB

patch

obsolete

>[  181.483714] console [netcon0] enabled
>[  181.489365] netconsole: network logging started
>[  181.519612] console [netcon0] disabled
>[  181.606593] console [netcon0] enabled
>[  181.612312] netconsole: network logging started
>[  215.309545] [drm:i915_gem_open] 
>[  215.315158] [drm:intel_crtc_set_config] [CRTC:7] [FB:34] #connectors=1 (x y) (0 0)
>[  215.320459] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:7], mode_changed=0, fb_changed=0
>[  215.325857] [drm:intel_modeset_stage_output_state] [CONNECTOR:27:eDP-1] to [CRTC:7]
>[  215.331203] [drm:intel_crtc_set_config] [CRTC:12] [NOFB]
>[  215.336625] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:12], mode_changed=0, fb_changed=0
>[  215.342095] [drm:intel_modeset_stage_output_state] [CONNECTOR:27:eDP-1] to [CRTC:7]
>[  215.347762] [drm:i915_gem_open] 
>[  215.356101] [drm:i915_gem_open] 
>[  215.361599] [drm:i915_gem_open] 
>[  215.367470] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.367637] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.371227] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.371315] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.371376] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  215.371443] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1]
>[  215.371645] [drm:intel_dp_detect] [CONNECTOR:27:eDP-1]
>[  215.371794] [drm:_edp_panel_vdd_on] Turning eDP VDD on
>[  215.371852] [drm:_edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[  215.372246] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  215.372496] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  215.372836] [drm:drm_edid_to_eld] ELD: no CEA Extension found
>[  215.373024] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1] probed modes :
>[  215.373074] [drm:drm_mode_debug_printmodeline] Modeline 28:"1366x768" 60 71000 1366 1404 1426 1482 768 771 777 798 0x48 0xa
>[  215.373195] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  215.373355] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.373438] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.373569] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.373651] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.373708] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  215.373753] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  215.373797] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  215.373880] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  215.379988] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  215.380052] [drm:intel_crt_detect] CRT not detected via hotplug
>[  215.380412] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  215.380481] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.380541] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  215.380594] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  215.381038] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.381105] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  215.381160] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  215.381248] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  215.381308] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  215.381355] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  215.381400] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  215.381485] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  215.386940] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  215.386997] [drm:intel_crt_detect] CRT not detected via hotplug
>[  215.387304] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  215.387373] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.387432] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  215.387487] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  215.387904] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.388000] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  215.388058] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  215.388147] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  215.388237] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.388329] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.388391] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  215.388439] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  215.388487] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  215.388872] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  215.388964] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  215.389105] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  215.389162] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  215.389209] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  215.389254] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  215.389636] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  215.389698] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  215.389835] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  215.389948] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.390036] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.390097] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  215.390143] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  215.390278] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  215.390414] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  215.390468] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  215.390512] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  215.390646] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  215.390779] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  215.390860] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.390977] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.391039] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  215.391084] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  215.391131] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  215.391626] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  215.391767] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  215.391819] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  215.391862] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  215.391907] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  215.392430] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  215.392571] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  215.393327] [drm:pipe_crc_set_source] collecting CRCs for pipe A, DP-C
>[  215.393431] [drm:pipe_crc_set_source] stopping CRCs for pipe A
>[  215.409173] [drm:add_framebuffer_internal] [FB:35]
>[  215.442810] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.443112] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.443179] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  215.443226] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1]
>[  215.443366] [drm:intel_dp_detect] [CONNECTOR:27:eDP-1]
>[  215.443685] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  215.443933] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  215.444290] [drm:drm_edid_to_eld] ELD: no CEA Extension found
>[  215.444444] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1] probed modes :
>[  215.444495] [drm:drm_mode_debug_printmodeline] Modeline 28:"1366x768" 60 71000 1366 1404 1426 1482 768 771 777 798 0x48 0xa
>[  215.444551] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  215.444666] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.444752] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.444872] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.444956] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.445046] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  215.445095] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  215.445139] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  215.445222] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  215.451005] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  215.451060] [drm:intel_crt_detect] CRT not detected via hotplug
>[  215.451374] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  215.451441] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.451501] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  215.451554] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  215.451997] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.452062] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  215.452117] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  215.452203] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  215.452259] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  215.452303] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  215.452347] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  215.452431] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  215.455008] [drm:valleyview_set_rps] GPU freq request from 646 MHz (214) to 167 MHz (191)
>[  215.458014] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  215.458078] [drm:intel_crt_detect] CRT not detected via hotplug
>[  215.458402] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  215.458472] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.458532] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  215.458584] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  215.459034] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.459102] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  215.459156] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  215.459246] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  215.459338] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.459440] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.459502] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  215.459549] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  215.459596] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  215.460018] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  215.460083] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  215.460225] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  215.460280] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  215.460325] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  215.460369] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  215.460759] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  215.460819] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  215.460959] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  215.461069] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.461157] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.461220] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  215.461267] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  215.461399] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  215.461533] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  215.461586] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  215.461630] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  215.461762] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  215.461898] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  215.462000] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.462090] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.462155] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  215.462200] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  215.462245] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  215.462743] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  215.462886] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  215.462939] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  215.463005] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  215.463053] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  215.463550] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  215.463690] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  215.463780] [drm:drm_mode_setcrtc] [CRTC:7]
>[  215.463941] [drm:drm_mode_setcrtc] [CONNECTOR:27:eDP-1]
>[  215.464007] [drm:intel_crtc_set_config] [CRTC:7] [FB:35] #connectors=1 (x y) (0 0)
>[  215.464116] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:7], mode_changed=0, fb_changed=1
>[  215.464164] [drm:intel_modeset_stage_output_state] [CONNECTOR:27:eDP-1] to [CRTC:7]
>[  215.464265] [drm:i9xx_update_primary_plane] Writing base 0087F000 00000000 0 0 5504
>[  215.491244] [drm:pipe_crc_set_source] collecting CRCs for pipe A, DP-C
>[  215.524768] [drm:pipe_crc_set_source] stopping CRCs for pipe A
>[  215.542141] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.542234] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.542295] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  215.542341] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1]
>[  215.542480] [drm:intel_dp_detect] [CONNECTOR:27:eDP-1]
>[  215.542793] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  215.543072] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  215.543404] [drm:drm_edid_to_eld] ELD: no CEA Extension found
>[  215.543562] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1] probed modes :
>[  215.543612] [drm:drm_mode_debug_printmodeline] Modeline 28:"1366x768" 60 71000 1366 1404 1426 1482 768 771 777 798 0x48 0xa
>[  215.543667] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  215.543784] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.543869] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.543987] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.544103] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.544166] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  215.544212] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  215.544260] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  215.544345] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  215.550090] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  215.550145] [drm:intel_crt_detect] CRT not detected via hotplug
>[  215.550463] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  215.550531] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.550590] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  215.550643] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  215.551092] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.551159] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  215.551214] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  215.551300] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  215.551358] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  215.551402] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  215.551446] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  215.551530] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  215.557268] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  215.557354] [drm:intel_crt_detect] CRT not detected via hotplug
>[  215.557672] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  215.557741] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.557800] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  215.557856] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  215.558298] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  215.558364] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  215.558419] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  215.558507] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  215.558589] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.558677] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.558739] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  215.558785] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  215.558829] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  215.559227] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  215.559290] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  215.559429] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  215.559485] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  215.559529] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  215.559575] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  215.559971] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  215.560033] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  215.560196] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  215.560283] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.560373] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.560434] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  215.560480] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  215.560614] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  215.560748] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  215.560799] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  215.560843] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  215.560976] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  215.561134] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  215.561217] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.561304] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.561366] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  215.561411] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  215.561455] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  215.561951] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  215.562119] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  215.562178] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  215.562225] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  215.562273] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  215.562771] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  215.562911] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  215.562993] [drm:drm_mode_setcrtc] [CRTC:7]
>[  215.563036] [drm:intel_crtc_set_config] [CRTC:7] [NOFB]
>[  215.563169] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:7], mode_changed=1, fb_changed=0
>[  215.563215] [drm:intel_modeset_stage_output_state] [CONNECTOR:27:eDP-1] to [NOCRTC]
>[  215.563258] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch
>[  215.563301] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch
>[  215.563342] [drm:intel_modeset_stage_output_state] crtc disabled, full mode switch
>[  215.563416] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 0, prepare: 0, disable: 1
>[  215.563545] [drm:intel_set_memory_cxsr] memory self-refresh is disabled
>[  215.563762] [drm:intel_edp_backlight_off] 
>[  215.764281] [drm:intel_panel_actually_set_backlight] set backlight PWM = 0
>[  215.764770] [drm:intel_edp_panel_off] Turn eDP power off
>[  215.764831] [drm:wait_panel_off] Wait for panel power off time
>[  215.764887] [drm:wait_panel_status] mask b0000000 value 00000000 status e0000003 control abcd0000
>[  215.808404] [drm:wait_panel_status] Wait complete
>[  215.825934] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000, dig 0x00000000
>[  215.825986] [drm:intel_hpd_irq_handler] digital hpd port 2 0
>[  215.826074] [drm:intel_dp_hpd_pulse] got hpd irq on port 2 - short
>[  215.826223] [drm:_edp_panel_vdd_on] Turning eDP VDD on
>[  215.826316] [drm:wait_panel_power_cycle] Wait for panel power cycle
>[  215.842447] [drm:intel_dp_link_down] 
>[  215.893451] [drm:intel_set_memory_cxsr] memory self-refresh is disabled
>[  215.893516] [drm:valleyview_update_wm] Setting FIFO watermarks - A: plane=2, cursor=2, B: plane=2, cursor=2, SR: plane=0, cursor=0
>[  215.895434] [drm:vlv_update_cdclk] Current CD clock rate: 200000 kHz
>[  215.895649] [drm:check_encoder_state] [ENCODER:16:DAC-16]
>[  215.895742] [drm:check_encoder_state] [ENCODER:17:TMDS-17]
>[  215.895794] [drm:check_encoder_state] [ENCODER:22:TMDS-22]
>[  215.895845] [drm:check_encoder_state] [ENCODER:24:TMDS-24]
>[  215.895895] [drm:check_encoder_state] [ENCODER:26:TMDS-26]
>[  215.895945] [drm:check_crtc_state] [CRTC:7]
>[  215.896002] [drm:check_crtc_state] [CRTC:12]
>[  215.899372] [drm:add_framebuffer_internal] [FB:35]
>[  215.911307] [drm:add_framebuffer_internal] [FB:36]
>[  215.911644] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.911742] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  215.911804] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  215.911851] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1]
>[  215.911987] [drm:intel_dp_detect] [CONNECTOR:27:eDP-1]
>[  215.912126] [drm:_edp_panel_vdd_on] Turning eDP VDD on
>[  215.912180] [drm:wait_panel_power_cycle] Wait for panel power cycle
>[  216.365753] [drm:wait_panel_status] mask b800000f value 00000000 status 00000000 control abcd0000
>[  216.365765] [drm:wait_panel_status] mask b800000f value 00000000 status 00000000 control abcd0000
>[  216.365768] [drm:wait_panel_status] Wait complete
>[  216.365778] [drm:_edp_panel_vdd_on] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0008
>[  216.365781] [drm:_edp_panel_vdd_on] eDP was not running
>[  216.366046] [drm:wait_panel_status] Wait complete
>[  216.366116] [drm:_edp_panel_vdd_on] PP_STATUS: 0x00000000 PP_CONTROL: 0xabcd0008
>[  216.366174] [drm:_edp_panel_vdd_on] eDP was not running
>[  216.459653] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00100000, dig 0x00000000
>[  216.459710] [drm:intel_hpd_irq_handler] digital hpd port 2 0
>[  216.567353] ------------[ cut here ]------------
>[  216.567472] WARNING: CPU: 2 PID: 4639 at drivers/gpu/drm/i915/intel_dp.c:1235 intel_edp_panel_vdd_on+0x30/0x32 [i915]()
>[  216.567601] eDP VDD already requested on
>[  216.567650] Modules linked in: netconsole configfs ipv6[  216.567848] [drm:intel_dp_get_dpcd] DPCD: 11 0a 81 41 00 00 01 80 02 00 00 00 0f 07 00
>
>[  216.568034]  dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr
>[  216.568570] [drm:intel_dp_check_link_status] TMDS-26: channel EQ not ok, retraining
>[  216.568653]  snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  216.568660] CPU: 2 PID: 4639 Comm: kms_plane Tainted: G        W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  216.568667]  0000000000000009 ffff88017338fb38 ffffffff818302cf 0000000000000006
>[  216.568672]  ffff88017338fb88 ffff88017338fb78 ffffffff8103fa1c ffff8801734c50d8
>[  216.568676]  ffffffffa00e8bb7 ffff8801734c50d8 ffff8801734c5118 ffff8801734c50d8
>[  216.568678] Call Trace:
>[  216.568686]  [<ffffffff818302cf>] dump_stack+0x46/0x58
>[  216.568693]  [<ffffffff8103fa1c>] warn_slowpath_common+0x81/0x9b
>[  216.568811]  [<ffffffffa00e8bb7>] ? intel_edp_panel_vdd_on+0x30/0x32 [i915]
>[  216.568902]  [<ffffffff8103fad9>] warn_slowpath_fmt+0x46/0x48
>[  216.568941]  [<ffffffffa00e8bb7>] intel_edp_panel_vdd_on+0x30/0x32 [i915]
>[  216.569044]  [<ffffffffa00e8bd5>] intel_dp_probe_oui.part.14+0x1c/0xbb [i915]
>[  216.569083]  [<ffffffffa00e8e02>] intel_dp_detect+0x18e/0x228 [i915]
>[  216.569159]  [<ffffffffa005a067>] drm_helper_probe_single_connector_modes_merge_bits+0xc7/0x2f9 [drm_kms_helper]
>[  216.569170]  [<ffffffffa005a2be>] drm_helper_probe_single_connector_modes+0x13/0x15 [drm_kms_helper]
>[  216.569193]  [<ffffffffa000fe52>] drm_mode_getconnector+0xf7/0x3e8 [drm]
>[  216.569212]  [<ffffffffa0003223>] drm_ioctl+0x2bd/0x425 [drm]
>[  216.569297]  [<ffffffffa000fd5b>] ? drm_mode_getcrtc+0xc1/0xc1 [drm]
>[  216.569303]  [<ffffffff8107b953>] ? up_write+0x20/0x40
>[  216.569309]  [<ffffffff8114b525>] do_vfs_ioctl+0x455/0x49f
>[  216.569315]  [<ffffffff811541f5>] ? __fget+0x5/0xb2
>[  216.569320]  [<ffffffff81837a37>] ? sysret_check+0x1b/0x56
>[  216.569389]  [<ffffffff8114b5c2>] SyS_ioctl+0x53/0x81
>[  216.569395]  [<ffffffff81837a12>] system_call_fastpath+0x16/0x1b
>[  216.569398] ---[ end trace fbf9f9228fdc84a9 ]---
>[  216.570451] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  216.570925] BUG: unable to handle kernel NULL pointer dereference at 0000000000000408
>[  216.576259] IP: [<ffffffffa00e5f4f>] intel_dp_set_signal_levels+0x496/0x822 [i915]
>[  216.581456] PGD 0 
>[  216.586418] Oops: 0000 [#1] SMP 
>[  216.591262] Modules linked in: netconsole configfs ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  216.607949] CPU: 0 PID: 1024 Comm: kworker/u8:2 Tainted: G        W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  216.612794] Workqueue: i915-dp i915_digport_work_func [i915]
>[  216.617503] task: ffff880173ef41e0 ti: ffff880173fe4000 task.ti: ffff880173fe4000
>[  216.622068] RIP: 0010:[<ffffffffa00e5f4f>]  [<ffffffffa00e5f4f>] intel_dp_set_signal_levels+0x496/0x822 [i915]
>[  216.626669] RSP: 0018:ffff880173fe7bc8  EFLAGS: 00010246
>[  216.631019] RAX: 0000000000000000 RBX: ffff880003530000 RCX: 0000000000000001
>[  216.635267] RDX: 0000000000000000 RSI: ffff880173fe7c7c RDI: ffff8801734c50d8
>[  216.639466] RBP: ffff880173fe7c38 R08: 0000000000000000 R09: 0000000000000001
>[  216.643533] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880173fe7c7c
>[  216.647449] R13: ffff880003537f00 R14: ffff880003530000 R15: ffff880173fe7c7c
>[  216.651266] FS:  0000000000000000(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000
>[  216.655131] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  216.658947] CR2: 0000000000000408 CR3: 0000000002010000 CR4: 00000000001007f0
>[  216.662812] Stack:
>[  216.666664]  0000000000000007 ffff8801734c5118 ffff880173fe7be8 ffffffff81835bed
>[  216.670841]  ffff880173fe7c7c ffffffffa005961e ffff880173fe7c08 0000000800000107
>[  216.675035]  ffff880173fe7c7a ffff8801734c50d8 ffff880173fe7c7c ffff880003537f00
>[  216.679220] Call Trace:
>[  216.683177]  [<ffffffff81835bed>] ? mutex_unlock+0xe/0x10
>[  216.687194]  [<ffffffffa005961e>] ? drm_dp_dpcd_access+0x6d/0xe9 [drm_kms_helper]
>[  216.691296]  [<ffffffffa00e8523>] intel_dp_reset_link_train.constprop.16+0x21/0x36 [i915]
>[  216.695393]  [<ffffffffa00e9c05>] intel_dp_start_link_train+0xaf/0x1fc [i915]
>[  216.699440]  [<ffffffffa00ea796>] intel_dp_check_link_status+0x112/0x13e [i915]
>[  216.703506]  [<ffffffffa00ea8a8>] intel_dp_hpd_pulse+0xe6/0x13f [i915]
>[  216.707575]  [<ffffffffa00ac7fc>] i915_digport_work_func+0xe6/0xff [i915]
>[  216.711659]  [<ffffffff81056d72>] process_one_work+0x25a/0x442
>[  216.715743]  [<ffffffff81056cdf>] ? process_one_work+0x1c7/0x442
>[  216.719830]  [<ffffffff81057629>] worker_thread+0x2f8/0x400
>[  216.723899]  [<ffffffff81057331>] ? pool_mayday_timeout+0x12d/0x12d
>[  216.727979]  [<ffffffff8105cbf0>] kthread+0xed/0xf5
>[  216.732042]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  216.736121]  [<ffffffff8183796c>] ret_from_fork+0x7c/0xb0
>[  216.740160]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  216.744146] Code: ff 41 81 ff 00 08 00 00 75 bb e9 f6 fe ff ff 83 f8 02 74 0f 83 f8 03 74 06 ff c8 74 02 0f 0b 31 c9 eb 05 b9 01 00 00 00 44 88 f0 <44> 8b aa 08 04 00 00 83 e0 18 3c 08 0f 84 89 00 00 00 77 09 84 
>[  216.755689] RIP  [<ffffffffa00e5f4f>] intel_dp_set_signal_levels+0x496/0x822 [i915]
>[  216.759908]  RSP <ffff880173fe7bc8>
>[  216.763948] CR2: 0000000000000408
>[  216.768176] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  216.772305] ------------[ cut here ]------------
>[  216.776480] WARNING: CPU: 1 PID: 4639 at drivers/gpu/drm/i915/intel_dp.c:1293 edp_panel_vdd_off+0x3b/0x7d [i915]()
>[  216.780731] eDP VDD not forced on
>[  216.780832] Modules linked in: netconsole configfs ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  216.800664] CPU: 1 PID: 4639 Comm: kms_plane Tainted: G        W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  216.805205]  0000000000000009 ffff88017338fb28 ffffffff818302cf ffff88017fc8ee98
>[  216.809836]  ffff88017338fb78 ffff88017338fb68 ffffffff8103fa1c ffff88017338fb88
>[  216.814349]  ffffffffa00e7ba5 ffff8801734c50d8 ffff8801734c5100 ffff8801734c50d8
>[  216.818772] Call Trace:
>[  216.822924]  [<ffffffff818302cf>] dump_stack+0x46/0x58
>[  216.827052]  [<ffffffff8103fa1c>] warn_slowpath_common+0x81/0x9b
>[  216.831169]  [<ffffffffa00e7ba5>] ? edp_panel_vdd_off+0x3b/0x7d [i915]
>[  216.835239]  [<ffffffff8103fad9>] warn_slowpath_fmt+0x46/0x48
>[  216.839342]  [<ffffffffa00e7ba5>] edp_panel_vdd_off+0x3b/0x7d [i915]
>[  216.843436]  [<ffffffffa00e8c6d>] intel_dp_probe_oui.part.14+0xb4/0xbb [i915]
>[  216.847559]  [<ffffffffa00e8e02>] intel_dp_detect+0x18e/0x228 [i915]
>[  216.851651]  [<ffffffffa005a067>] drm_helper_probe_single_connector_modes_merge_bits+0xc7/0x2f9 [drm_kms_helper]
>[  216.855817]  [<ffffffffa005a2be>] drm_helper_probe_single_connector_modes+0x13/0x15 [drm_kms_helper]
>[  216.859955]  [<ffffffffa000fe52>] drm_mode_getconnector+0xf7/0x3e8 [drm]
>[  216.864078]  [<ffffffffa0003223>] drm_ioctl+0x2bd/0x425 [drm]
>[  216.868152]  [<ffffffffa000fd5b>] ? drm_mode_getcrtc+0xc1/0xc1 [drm]
>[  216.872189]  [<ffffffff8107b953>] ? up_write+0x20/0x40
>[  216.876189]  [<ffffffff8114b525>] do_vfs_ioctl+0x455/0x49f
>[  216.880186]  [<ffffffff811541f5>] ? __fget+0x5/0xb2
>[  216.884124]  [<ffffffff81837a37>] ? sysret_check+0x1b/0x56
>[  216.888050]  [<ffffffff8114b5c2>] SyS_ioctl+0x53/0x81
>[  216.891940]  [<ffffffff81837a12>] system_call_fastpath+0x16/0x1b
>[  216.895819] ---[ end trace fbf9f9228fdc84aa ]---
>[  216.899844] [drm:drm_edid_to_eld] ELD: no CEA Extension found
>[  216.903800] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:27:eDP-1] probed modes :
>[  216.907804] [drm:drm_mode_debug_printmodeline] Modeline 28:"1366x768" 60 71000 1366 1404 1426 1482 768 771 777 798 0x48 0xa
>[  216.911917] [drm:drm_mode_getconnector] [CONNECTOR:27:?]
>[  216.916054] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.920199] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.924317] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.928396] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.932401] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  216.934433] ---[ end trace fbf9f9228fdc84ab ]---
>[  216.934529] BUG: unable to handle kernel paging request at ffffffffffffffa8
>[  216.934535] IP: [<ffffffff8105cf6b>] kthread_data+0x10/0x16
>[  216.934542] PGD 2011067 PUD 2013067 PMD 0 
>[  216.934545] Oops: 0000 [#2] SMP 
>[  216.934580] Modules linked in: netconsole configfs ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  216.934584] CPU: 0 PID: 1024 Comm: kworker/u8:2 Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  216.934598] task: ffff880173ef41e0 ti: ffff880173fe4000 task.ti: ffff880173fe4000
>[  216.934603] RIP: 0010:[<ffffffff8105cf6b>]  [<ffffffff8105cf6b>] kthread_data+0x10/0x16
>[  216.934605] RSP: 0018:ffff880173fe76e8  EFLAGS: 00010002
>[  216.934607] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff839abf80
>[  216.934608] RDX: 0000000000000005 RSI: 0000000000000000 RDI: ffff880173ef41e0
>[  216.934610] RBP: ffff880173fe76e8 R08: ffff880173ef4270 R09: 0000000000000001
>[  216.934611] R10: 0000000000000001 R11: 000000000000b703 R12: 0000000000000000
>[  216.934613] R13: ffff880173ef46f0 R14: ffff880173fe7888 R15: ffff880173fe7470
>[  216.934615] FS:  0000000000000000(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000
>[  216.934617] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  216.934619] CR2: 0000000000000028 CR3: 0000000002010000 CR4: 00000000001007f0
>[  216.934620] Stack:
>[  216.934624]  ffff880173fe7708 ffffffff8105790c ffffffff839abf80 ffff88017fc13140
>[  216.934628]  ffff880173fe7828 ffffffff81832ed2 ffff880173fe7768 ffff880173ef41e0
>[  216.934631]  0000000000013140 0000000000004000 0000000000000282 ffff880173ef41e0
>[  216.934632] Call Trace:
>[  216.934638]  [<ffffffff8105790c>] wq_worker_sleeping+0x12/0x89
>[  216.934643]  [<ffffffff81832ed2>] __schedule+0x165/0x967
>[  216.934648]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  216.934653]  [<ffffffff81371d05>] ? put_io_context+0x4d/0x87
>[  216.934657]  [<ffffffff81371e00>] ? put_io_context_active+0xa8/0xb1
>[  216.934661]  [<ffffffff8183373e>] schedule+0x6a/0x6c
>[  216.934666]  [<ffffffff81041f10>] do_exit+0x8c9/0x928
>[  216.934671]  [<ffffffff810056c7>] oops_end+0xa7/0xb0
>[  216.934674]  [<ffffffff8182b35f>] no_context+0x299/0x2c5
>[  216.934678]  [<ffffffff8182b6a4>] __bad_area_nosemaphore+0x1ce/0x1ef
>[  216.934682]  [<ffffffff8107eefc>] ? __lock_acquire+0x6a1/0x1803
>[  216.934685]  [<ffffffff8182b6d8>] bad_area_nosemaphore+0x13/0x15
>[  216.934690]  [<ffffffff81035774>] __do_page_fault+0x416/0x4b5
>[  216.934694]  [<ffffffff8107cbbd>] ? __lock_is_held+0x32/0x54
>[  216.934698]  [<ffffffff81062df6>] ? ttwu_stat+0x51/0x105
>[  216.934703]  [<ffffffff813933dd>] ? trace_hardirqs_off_thunk+0x3a/0x3c
>[  216.934707]  [<ffffffff810358bc>] do_page_fault+0xc/0xe
>[  216.934711]  [<ffffffff818396b2>] page_fault+0x22/0x30
>[  216.934754]  [<ffffffffa00e5f4f>] ? intel_dp_set_signal_levels+0x496/0x822 [i915]
>[  216.934759]  [<ffffffff81835bed>] ? mutex_unlock+0xe/0x10
>[  216.934769]  [<ffffffffa005961e>] ? drm_dp_dpcd_access+0x6d/0xe9 [drm_kms_helper]
>[  216.934806]  [<ffffffffa00e8523>] intel_dp_reset_link_train.constprop.16+0x21/0x36 [i915]
>[  216.934843]  [<ffffffffa00e9c05>] intel_dp_start_link_train+0xaf/0x1fc [i915]
>[  216.934880]  [<ffffffffa00ea796>] intel_dp_check_link_status+0x112/0x13e [i915]
>[  216.934917]  [<ffffffffa00ea8a8>] intel_dp_hpd_pulse+0xe6/0x13f [i915]
>[  216.934949]  [<ffffffffa00ac7fc>] i915_digport_work_func+0xe6/0xff [i915]
>[  216.934953]  [<ffffffff81056d72>] process_one_work+0x25a/0x442
>[  216.934957]  [<ffffffff81056cdf>] ? process_one_work+0x1c7/0x442
>[  216.934963]  [<ffffffff81057629>] worker_thread+0x2f8/0x400
>[  216.934968]  [<ffffffff81057331>] ? pool_mayday_timeout+0x12d/0x12d
>[  216.934971]  [<ffffffff8105cbf0>] kthread+0xed/0xf5
>[  216.934976]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  216.934980]  [<ffffffff8183796c>] ret_from_fork+0x7c/0xb0
>[  216.934984]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  216.935026] Code: 00 ba 00 00 48 8b 80 b8 04 00 00 48 89 e5 5d 48 8b 40 98 48 c1 e8 02 83 e0 01 c3 0f 1f 44 00 00 48 8b 87 b8 04 00 00 55 48 89 e5 <48> 8b 40 a8 5d c3 0f 1f 44 00 00 55 ba 08 00 00 00 48 89 e5 48 
>[  216.935029] RIP  [<ffffffff8105cf6b>] kthread_data+0x10/0x16
>[  216.935030]  RSP <ffff880173fe76e8>
>[  216.935032] CR2: ffffffffffffffa8
>[  216.935034] ---[ end trace fbf9f9228fdc84ac ]---
>[  216.935035] Fixing recursive fault but reboot is needed!
>[  216.937401] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  216.937456] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  216.937530] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  216.943194] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  216.943249] [drm:intel_crt_detect] CRT not detected via hotplug
>[  216.944298] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  216.944371] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  216.944432] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  216.944488] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  216.944858] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  216.944922] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  216.944977] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  216.945048] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  216.945105] [drm:drm_mode_getconnector] [CONNECTOR:15:?]
>[  216.945148] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1]
>[  216.945207] [drm:intel_crt_detect] [CONNECTOR:15:VGA-1] force=1
>[  216.945276] [drm:valleyview_crt_detect_hotplug] trigger hotplug detect cycle: adpa=0xf40000
>[  216.951201] [drm:valleyview_crt_detect_hotplug] valleyview hotplug adpa=0xf40000, result 0
>[  216.951255] [drm:intel_crt_detect] CRT not detected via hotplug
>[  216.952264] [drm:gmbus_xfer] GMBUS [i915 gmbus vga] NAK for addr: 0050 r(1)
>[  216.952332] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  216.952392] [drm:intel_crt_get_edid] CRT GMBUS EDID read failed, retry using GPIO bit-banging
>[  216.952445] [drm:intel_gmbus_force_bit] enabling bit-banging on i915 gmbus vga. force bit now 1
>[  216.952811] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus vga
>[  216.952873] [drm:intel_gmbus_force_bit] disabling bit-banging on i915 gmbus vga. force bit now 0
>[  216.952928] [drm:intel_crt_detect_ddc] CRT not detected via DDC:0x50 [no valid EDID found]
>[  216.952997] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:15:VGA-1] disconnected
>[  216.953072] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.953142] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.953324] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  216.953372] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  216.953420] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  216.954285] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  216.954367] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  216.954467] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  216.954530] [drm:drm_mode_getconnector] [CONNECTOR:18:?]
>[  216.954574] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1]
>[  216.954620] [drm:intel_hdmi_detect] [CONNECTOR:18:HDMI-A-1]
>[  216.955222] [drm:gmbus_xfer] GMBUS [i915 gmbus dpb] NAK for addr: 0050 r(1)
>[  216.955288] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpb
>[  216.955398] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:18:HDMI-A-1] disconnected
>[  216.955478] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.955560] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.955608] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  216.955652] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  216.955756] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  216.955841] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  216.955905] [drm:drm_mode_getconnector] [CONNECTOR:23:?]
>[  216.955946] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1]
>[  216.956042] [drm:intel_dp_detect] [CONNECTOR:23:DP-1]
>[  216.956127] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:23:DP-1] disconnected
>[  216.956232] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.956298] [drm:drm_mode_getresources] CRTC[2] CONNECTORS[5] ENCODERS[5]
>[  216.956345] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  216.956409] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  216.956454] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  216.956869] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  216.956960] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  216.957025] [drm:drm_mode_getconnector] [CONNECTOR:25:?]
>[  216.957065] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2]
>[  216.957107] [drm:intel_hdmi_detect] [CONNECTOR:25:HDMI-A-2]
>[  216.957538] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus dpc
>[  216.957629] [drm:drm_helper_probe_single_connector_modes_merge_bits] [CONNECTOR:25:HDMI-A-2] disconnected
>[  216.957717] [drm:drm_mode_setcrtc] [CRTC:7]
>[  216.957792] [drm:drm_mode_setcrtc] [CONNECTOR:27:eDP-1]
>[  216.957832] [drm:intel_crtc_set_config] [CRTC:7] [FB:35] #connectors=1 (x y) (0 0)
>[  216.957946] [drm:intel_set_config_compute_mode_changes] inactive crtc, full mode set
>[  216.957989] [drm:intel_set_config_compute_mode_changes] computed changes for [CRTC:7], mode_changed=1, fb_changed=0
>[  216.958029] [drm:intel_modeset_stage_output_state] encoder changed, full mode switch
>[  216.958069] [drm:intel_modeset_stage_output_state] [CONNECTOR:27:eDP-1] to [CRTC:7]
>[  216.958131] [drm:intel_modeset_stage_output_state] crtc changed, full mode switch
>[  216.958172] [drm:intel_modeset_stage_output_state] crtc enabled, full mode switch
>[  216.958272] [drm:intel_modeset_affected_pipes] set mode pipe masks: modeset: 1, prepare: 1, disable: 0
>[  216.958338] [drm:connected_sink_compute_bpp] [CONNECTOR:27:eDP-1] checking for sink bpp constrains
>[  216.958384] [drm:connected_sink_compute_bpp] clamping display bpp (was 24) to EDID reported max of 18
>[  216.958453] [drm:intel_dp_compute_config] DP link computation with max lane count 1 max bw 0a pixel clock 71000KHz
>[  216.958505] [drm:intel_dp_compute_config] using min 1 lanes per VBT
>[  216.958555] [drm:intel_dp_compute_config] using min 06 link bw per VBT
>[  216.958625] [drm:intel_dp_compute_config] DP link bw 06 lane count 1 clock 162000 bpp 18
>[  216.958676] [drm:intel_dp_compute_config] DP link bw required 127800 available 129600
>[  216.958726] [drm:intel_modeset_pipe_config] plane bpp: 24, pipe bpp: 18, dithering: 1
>[  216.958791] [drm:intel_dump_pipe_config] [CRTC:7][modeset] config for pipe A
>[  216.958842] [drm:intel_dump_pipe_config] cpu_transcoder: A
>[  216.958894] [drm:intel_dump_pipe_config] pipe bpp: 18, dithering: 1
>[  216.958962] [drm:intel_dump_pipe_config] fdi/pch: 0, lanes: 0, gmch_m: 0, gmch_n: 0, link_m: 0, link_n: 0, tu: 0
>[  216.959012] [drm:intel_dump_pipe_config] dp: 1, gmch_m: 2068024, gmch_n: 2097152, link_m: 114890, link_n: 262144, tu: 64
>[  216.959059] [drm:intel_dump_pipe_config] requested mode:
>[  216.959129] [drm:drm_mode_debug_printmodeline] Modeline 0:"1366x768" 60 71000 1366 1404 1426 1482 768 771 777 798 0x48 0xa
>[  216.959178] [drm:intel_dump_pipe_config] adjusted mode:
>[  216.959244] [drm:drm_mode_debug_printmodeline] Modeline 0:"1366x768" 60 71000 1366 1404 1426 1482 768 771 777 798 0x48 0xa
>[  216.959318] [drm:intel_dump_crtc_timings] crtc timings: 71000 1366 1404 1426 1482 768 771 777 798, type: 0x48 flags: 0xa
>[  216.959366] [drm:intel_dump_pipe_config] port clock: 162000
>[  216.959414] [drm:intel_dump_pipe_config] pipe src size: 1366x768
>[  216.959483] [drm:intel_dump_pipe_config] gmch pfit: control: 0x00000000, ratios: 0x00000000, lvds border: 0x00000000
>[  216.959537] [drm:intel_dump_pipe_config] pch pfit: pos: 0x00000000, size: 0x00000000, disabled
>[  216.959587] [drm:intel_dump_pipe_config] ips: 0
>[  216.959654] [drm:intel_dump_pipe_config] double wide: 0
>[  216.961230] [drm:vlv_update_cdclk] Current CD clock rate: 266667 kHz
>[  216.983237] [drm:i9xx_update_primary_plane] Writing base 0087F000 00000000 0 0 5504
>[  217.001248] [drm:intel_dp_init_panel_power_sequencer] cur t1_t3 2000 t8 1 t9 1 t10 500 t11_t12 6000
>[  217.001306] [drm:intel_dp_init_panel_power_sequencer] vbt t1_t3 2000 t8 10 t9 2000 t10 500 t11_t12 5000
>[  217.001359] [drm:intel_dp_init_panel_power_sequencer] panel power up delay 200, power down delay 50, power cycle delay 600
>[  217.001432] [drm:intel_dp_init_panel_power_sequencer] backlight on delay 1, off delay 200
>[  217.001491] [drm:intel_dp_init_panel_power_sequencer_registers] panel power sequencer register settings: PP_ON 0x87d00001, PP_OFF 0x1f40001, PP_DIV 0x270f06
>[  244.611538] ------------[ cut here ]------------
>[  244.611625] WARNING: CPU: 0 PID: 1024 at kernel/watchdog.c:265 watchdog_overflow_callback+0x87/0xa9()
>[  244.611699] Watchdog detected hard LOCKUP on cpu 0
>[  244.611770] Modules linked in: netconsole configfs ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  244.614920] CPU: 0 PID: 1024 Comm: kworker/u8:2 Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  244.615005]  0000000000000009 ffff88017fc07b98 ffffffff818302cf 0000000000000006
>[  244.615366]  ffff88017fc07be8 ffff88017fc07bd8 ffffffff8103fa1c 0000000000000000
>[  244.615721]  ffffffff810c50ad ffff88017b014800 0000000000000000 ffff88017fc07d18
>[  244.616074] Call Trace:
>[  244.616148]  <NMI>  [<ffffffff818302cf>] dump_stack+0x46/0x58
>[  244.616312]  [<ffffffff8103fa1c>] warn_slowpath_common+0x81/0x9b
>[  244.616396]  [<ffffffff810c50ad>] ? watchdog_overflow_callback+0x87/0xa9
>[  244.616477]  [<ffffffff8103fad9>] warn_slowpath_fmt+0x46/0x48
>[  244.616560]  [<ffffffff810c50ad>] watchdog_overflow_callback+0x87/0xa9
>[  244.616642]  [<ffffffff810f07e6>] __perf_event_overflow+0x10b/0x1f7
>[  244.616723]  [<ffffffff810ee33f>] ? perf_event_task_disable+0x81/0x81
>[  244.616805]  [<ffffffff810f0d11>] perf_event_overflow+0x14/0x16
>[  244.616888]  [<ffffffff81019c37>] intel_pmu_handle_irq+0x2f6/0x383
>[  244.616970]  [<ffffffff810135e4>] perf_event_nmi_handler+0x2a/0x46
>[  244.617052]  [<ffffffff81005a77>] nmi_handle+0x7b/0x131
>[  244.617137]  [<ffffffff81005a01>] ? nmi_handle+0x5/0x131
>[  244.617218]  [<ffffffff8102a7a8>] ? default_send_IPI_mask_allbutself_phys+0xda/0xda
>[  244.617299]  [<ffffffff810060f7>] default_do_nmi+0x53/0x100
>[  244.617380]  [<ffffffff8100621d>] do_nmi+0x79/0xd0
>[  244.617461]  [<ffffffff81839a67>] end_repeat_nmi+0x1e/0x2e
>[  244.617543]  [<ffffffff8139223e>] ? delay_tsc+0x23/0x50
>[  244.617624]  [<ffffffff8139223e>] ? delay_tsc+0x23/0x50
>[  244.617704]  [<ffffffff8139223e>] ? delay_tsc+0x23/0x50
>[  244.617781]  <<EOE>>  [<ffffffff81392199>] __delay+0xf/0x11
>[  244.617939]  [<ffffffff81082c86>] do_raw_spin_lock+0xb1/0x10a
>[  244.618022]  [<ffffffff81836eeb>] _raw_spin_lock_irq+0x3f/0x46
>[  244.618108]  [<ffffffff81832e59>] ? __schedule+0xec/0x967
>[  244.618189]  [<ffffffff81832e59>] __schedule+0xec/0x967
>[  244.618271]  [<ffffffff8108d024>] ? vprintk_emit+0x476/0x4c9
>[  244.618352]  [<ffffffff8182cbca>] ? printk+0x4d/0x4f
>[  244.618432]  [<ffffffff8183373e>] schedule+0x6a/0x6c
>[  244.618513]  [<ffffffff81041758>] do_exit+0x111/0x928
>[  244.618595]  [<ffffffff8108dc9c>] ? kmsg_dump+0xdd/0xe6
>[  244.618677]  [<ffffffff8108dbe4>] ? kmsg_dump+0x25/0xe6
>[  244.618758]  [<ffffffff810056c7>] oops_end+0xa7/0xb0
>[  244.618838]  [<ffffffff8182b35f>] no_context+0x299/0x2c5
>[  244.618920]  [<ffffffff8182b6a4>] __bad_area_nosemaphore+0x1ce/0x1ef
>[  244.619006]  [<ffffffff8107b435>] ? cpuacct_charge+0x5/0x8c
>[  244.619087]  [<ffffffff8182b6d8>] bad_area_nosemaphore+0x13/0x15
>[  244.619169]  [<ffffffff81035774>] __do_page_fault+0x416/0x4b5
>[  244.619250]  [<ffffffff8107b4b1>] ? cpuacct_charge+0x81/0x8c
>[  244.619332]  [<ffffffff8106e89f>] ? check_preempt_wakeup+0x139/0x192
>[  244.619414]  [<ffffffff813933dd>] ? trace_hardirqs_off_thunk+0x3a/0x3c
>[  244.619495]  [<ffffffff810358bc>] do_page_fault+0xc/0xe
>[  244.619575]  [<ffffffff818396b2>] page_fault+0x22/0x30
>[  244.619657]  [<ffffffff8105cf6b>] ? kthread_data+0x10/0x16
>[  244.619740]  [<ffffffff8105790c>] wq_worker_sleeping+0x12/0x89
>[  244.619822]  [<ffffffff81832ed2>] __schedule+0x165/0x967
>[  244.619904]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  244.619991]  [<ffffffff81371d05>] ? put_io_context+0x4d/0x87
>[  244.620072]  [<ffffffff81371e00>] ? put_io_context_active+0xa8/0xb1
>[  244.620153]  [<ffffffff8183373e>] schedule+0x6a/0x6c
>[  244.620233]  [<ffffffff81041f10>] do_exit+0x8c9/0x928
>[  244.620314]  [<ffffffff810056c7>] oops_end+0xa7/0xb0
>[  244.620394]  [<ffffffff8182b35f>] no_context+0x299/0x2c5
>[  244.620475]  [<ffffffff8182b6a4>] __bad_area_nosemaphore+0x1ce/0x1ef
>[  244.620556]  [<ffffffff8107eefc>] ? __lock_acquire+0x6a1/0x1803
>[  244.620637]  [<ffffffff8182b6d8>] bad_area_nosemaphore+0x13/0x15
>[  244.620718]  [<ffffffff81035774>] __do_page_fault+0x416/0x4b5
>[  244.620799]  [<ffffffff8107cbbd>] ? __lock_is_held+0x32/0x54
>[  244.620885]  [<ffffffff81062df6>] ? ttwu_stat+0x51/0x105
>[  244.620966]  [<ffffffff813933dd>] ? trace_hardirqs_off_thunk+0x3a/0x3c
>[  244.621048]  [<ffffffff810358bc>] do_page_fault+0xc/0xe
>[  244.621128]  [<ffffffff818396b2>] page_fault+0x22/0x30
>[  244.621249]  [<ffffffffa00e5f4f>] ? intel_dp_set_signal_levels+0x496/0x822 [i915]
>[  244.621336]  [<ffffffff81835bed>] ? mutex_unlock+0xe/0x10
>[  244.621422]  [<ffffffffa005961e>] ? drm_dp_dpcd_access+0x6d/0xe9 [drm_kms_helper]
>[  244.621541]  [<ffffffffa00e8523>] intel_dp_reset_link_train.constprop.16+0x21/0x36 [i915]
>[  244.621660]  [<ffffffffa00e9c05>] intel_dp_start_link_train+0xaf/0x1fc [i915]
>[  244.621780]  [<ffffffffa00ea796>] intel_dp_check_link_status+0x112/0x13e [i915]
>[  244.621898]  [<ffffffffa00ea8a8>] intel_dp_hpd_pulse+0xe6/0x13f [i915]
>[  244.622011]  [<ffffffffa00ac7fc>] i915_digport_work_func+0xe6/0xff [i915]
>[  244.622102]  [<ffffffff81056d72>] process_one_work+0x25a/0x442
>[  244.622184]  [<ffffffff81056cdf>] ? process_one_work+0x1c7/0x442
>[  244.622268]  [<ffffffff81057629>] worker_thread+0x2f8/0x400
>[  244.622350]  [<ffffffff81057331>] ? pool_mayday_timeout+0x12d/0x12d
>[  244.622432]  [<ffffffff8105cbf0>] kthread+0xed/0xf5
>[  244.622513]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  244.622594]  [<ffffffff8183796c>] ret_from_fork+0x7c/0xb0
>[  244.622676]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  244.622755] ---[ end trace fbf9f9228fdc84ad ]---
>[  244.768806] BUG: soft lockup - CPU#2 stuck for 22s! [kms_plane:4639]
>[  244.768879] Modules linked in: netconsole configfs ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  244.771634] irq event stamp: 94948
>[  244.771700] hardirqs last  enabled at (94947): [<ffffffff818358e7>] mutex_lock_nested+0x188/0x2d2
>[  244.771837] hardirqs last disabled at (94948): [<ffffffff81836ec3>] _raw_spin_lock_irq+0x17/0x46
>[  244.772179] softirqs last  enabled at (94894): [<ffffffff81043bd1>] __do_softirq+0x20d/0x294
>[  244.772315] softirqs last disabled at (94825): [<ffffffff81043e4b>] irq_exit+0x44/0x9a
>[  244.772447] CPU: 2 PID: 4639 Comm: kms_plane Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  244.772514] task: ffff8801783f0000 ti: ffff88017338c000 task.ti: ffff88017338c000
>[  244.772579] RIP: 0010:[<ffffffff810a44c7>]  [<ffffffff810a44c7>] csd_lock_wait.isra.3+0x10/0x14
>[  244.772709] RSP: 0018:ffff88017338f6a8  EFLAGS: 00000202
>[  244.772774] RAX: 0000000000000000 RBX: ffffffff81838620 RCX: 0000000000000040
>[  244.772839] RDX: 000000000000000b RSI: 0000000000000040 RDI: ffff88017fc17390
>[  244.772905] RBP: ffff88017338f6a8 R08: ffff88017fd13cd0 R09: 0000000300000001
>[  244.772975] R10: 000000000000000b R11: 0000000000000000 R12: ffff88017338f618
>[  244.773042] R13: ffff88017fd13140 R14: ffff88017338c000 R15: ffff8801783f0000
>[  244.773109] FS:  00007fc5018578c0(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
>[  244.773175] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  244.773240] CR2: 0000000002281000 CR3: 0000000178e56000 CR4: 00000000001007e0
>[  244.773304] Stack:
>[  244.773368]  ffff88017338f718 ffffffff810a4ac6 0000000000000000 0000000000000003
>[  244.773680]  ffff88017fd97378 0000000000000003 0000000000000000 ffffffff817321ac
>[  244.773998]  0000000000000000 00000000ffffffff 0000000000000000 0000000000000000
>[  244.774312] Call Trace:
>[  244.774382]  [<ffffffff810a4ac6>] smp_call_function_many+0x1e8/0x229
>[  244.774462]  [<ffffffff817321ac>] ? cpufreq_governor_dbs+0x5e1/0x5e1
>[  244.774535]  [<ffffffff810a4c25>] smp_call_function+0x22/0x26
>[  244.774608]  [<ffffffff817321d3>] cpuidle_latency_notify+0x1c/0x23
>[  244.774680]  [<ffffffff81060537>] notifier_call_chain+0x37/0x61
>[  244.774752]  [<ffffffff81060786>] __blocking_notifier_call_chain+0x4c/0x65
>[  244.774825]  [<ffffffff810607b3>] blocking_notifier_call_chain+0x14/0x16
>[  244.774898]  [<ffffffff81083569>] pm_qos_update_target+0x133/0x15d
>[  244.774971]  [<ffffffff810836d3>] __pm_qos_update_request+0x62/0x7b
>[  244.775044]  [<ffffffff8108373b>] pm_qos_update_request+0x4f/0x56
>[  244.775155]  [<ffffffffa00e7c52>] intel_dp_aux_ch+0x6b/0x5e6 [i915]
>[  244.775241]  [<ffffffffa0059606>] ? drm_dp_dpcd_access+0x55/0xe9 [drm_kms_helper]
>[  244.775518]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  244.775630]  [<ffffffffa00e82ca>] intel_dp_aux_transfer+0xfd/0x124 [i915]
>[  244.775713]  [<ffffffffa0059614>] drm_dp_dpcd_access+0x63/0xe9 [drm_kms_helper]
>[  244.775796]  [<ffffffffa00596b5>] drm_dp_dpcd_write+0x1b/0x1f [drm_kms_helper]
>[  244.775907]  [<ffffffffa00e9397>] intel_dp_sink_dpms+0x7d/0x96 [i915]
>[  244.776018]  [<ffffffffa00ea233>] intel_enable_dp+0x56/0x87 [i915]
>[  244.776128]  [<ffffffffa00ea398>] vlv_pre_enable_dp+0x111/0x12b [i915]
>[  244.776238]  [<ffffffffa00d0b3b>] valleyview_crtc_enable+0x963/0xa4a [i915]
>[  244.776347]  [<ffffffffa00cde04>] __intel_set_mode+0x114b/0x124f [i915]
>[  244.776456]  [<ffffffffa00d41c4>] intel_set_mode+0x16/0x2f [i915]
>[  244.776567]  [<ffffffffa00d4ee3>] intel_crtc_set_config+0x76c/0xaca [i915]
>[  244.776662]  [<ffffffffa000cd2a>] drm_mode_set_config_internal+0x5a/0xd2 [drm]
>[  244.776761]  [<ffffffffa0010956>] drm_mode_setcrtc+0x3ef/0x499 [drm]
>[  244.776850]  [<ffffffffa0003223>] drm_ioctl+0x2bd/0x425 [drm]
>[  244.776928]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  244.777016]  [<ffffffffa0010567>] ? drm_mode_setplane+0x181/0x181 [drm]
>[  244.777095]  [<ffffffff8114b525>] do_vfs_ioctl+0x455/0x49f
>[  244.777169]  [<ffffffff811541f5>] ? __fget+0x5/0xb2
>[  244.777242]  [<ffffffff81081655>] ? lockdep_sys_exit+0x1d/0x88
>[  244.777316]  [<ffffffff81393414>] ? lockdep_sys_exit_thunk+0x35/0x67
>[  244.777389]  [<ffffffff8114b5c2>] SyS_ioctl+0x53/0x81
>[  244.777462]  [<ffffffff81837a12>] system_call_fastpath+0x16/0x1b
>[  244.777531] Code: c7 08 60 d9 81 31 c0 e8 d5 86 78 00 5d c3 66 90 0f 1f 44 00 00 55 48 89 e5 5d c3 0f 1f 44 00 00 55 48 89 e5 eb 02 f3 90 f6 07 01 <75> f9 5d c3 0f 1f 44 00 00 55 31 c0 48 89 e5 41 57 49 89 cf b9 
>[  244.789589] ------------[ cut here ]------------
>[  244.789646] WARNING: CPU: 1 PID: 0 at kernel/watchdog.c:265 watchdog_overflow_callback+0x87/0xa9()
>[  244.789695] Watchdog detected hard LOCKUP on cpu 1
>[  244.789737] Modules linked in: netconsole configfs ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  244.791523] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  244.791570]  0000000000000009 ffff88017fc87b98 ffffffff818302cf 0000000000000006
>[  244.791771]  ffff88017fc87be8 ffff88017fc87bd8 ffffffff8103fa1c 0000000000000000
>[  244.791972]  ffffffff810c50ad ffff88017a620000 0000000000000000 ffff88017fc87d18
>[  244.792178] Call Trace:
>[  244.792222]  <NMI>  [<ffffffff818302cf>] dump_stack+0x46/0x58
>[  244.792321]  [<ffffffff8103fa1c>] warn_slowpath_common+0x81/0x9b
>[  244.792371]  [<ffffffff810c50ad>] ? watchdog_overflow_callback+0x87/0xa9
>[  244.792421]  [<ffffffff8103fad9>] warn_slowpath_fmt+0x46/0x48
>[  244.792471]  [<ffffffff810c50ad>] watchdog_overflow_callback+0x87/0xa9
>[  244.792521]  [<ffffffff810f07e6>] __perf_event_overflow+0x10b/0x1f7
>[  244.792575]  [<ffffffff810ee33f>] ? perf_event_task_disable+0x81/0x81
>[  244.792627]  [<ffffffff810f0d11>] perf_event_overflow+0x14/0x16
>[  244.792677]  [<ffffffff81019c37>] intel_pmu_handle_irq+0x2f6/0x383
>[  244.792728]  [<ffffffff810135e4>] perf_event_nmi_handler+0x2a/0x46
>[  244.792777]  [<ffffffff81005a77>] nmi_handle+0x7b/0x131
>[  244.792827]  [<ffffffff81005a01>] ? nmi_handle+0x5/0x131
>[  244.792877]  [<ffffffff8102a7a8>] ? default_send_IPI_mask_allbutself_phys+0xda/0xda
>[  244.792927]  [<ffffffff810060f7>] default_do_nmi+0x53/0x100
>[  244.792975]  [<ffffffff8100621d>] do_nmi+0x79/0xd0
>[  244.793026]  [<ffffffff81839a67>] end_repeat_nmi+0x1e/0x2e
>[  244.793075]  [<ffffffff8139223e>] ? delay_tsc+0x23/0x50
>[  244.793124]  [<ffffffff8139223e>] ? delay_tsc+0x23/0x50
>[  244.793178]  [<ffffffff8139223e>] ? delay_tsc+0x23/0x50
>[  244.793226]  <<EOE>>  <IRQ>  [<ffffffff81392199>] __delay+0xf/0x11
>[  244.793364]  [<ffffffff81082c86>] do_raw_spin_lock+0xb1/0x10a
>[  244.793414]  [<ffffffff81836dd9>] _raw_spin_lock+0x39/0x40
>[  244.793466]  [<ffffffff81074cef>] ? sched_rt_period_timer+0xab/0x29a
>[  244.793516]  [<ffffffff81074cef>] sched_rt_period_timer+0xab/0x29a
>[  244.793567]  [<ffffffff81074c44>] ? post_schedule_rt+0x10/0x10
>[  244.793616]  [<ffffffff8105f074>] __run_hrtimer+0xd4/0x19a
>[  244.793667]  [<ffffffff8105f92d>] hrtimer_interrupt+0xec/0x1d9
>[  244.793722]  [<ffffffff81029138>] local_apic_timer_interrupt+0x55/0x59
>[  244.793773]  [<ffffffff8183a4f6>] smp_apic_timer_interrupt+0x40/0x52
>[  244.793822]  [<ffffffff8183892f>] apic_timer_interrupt+0x6f/0x80
>[  244.793869]  <EOI>  [<ffffffff81838620>] ? retint_restore_args+0xe/0xe
>[  244.793967]  [<ffffffff81732a85>] ? poll_idle+0x24/0xb9
>[  244.794017]  [<ffffffff81732ac5>] ? poll_idle+0x64/0xb9
>[  244.794069]  [<ffffffff81732a85>] ? poll_idle+0x24/0xb9
>[  244.794119]  [<ffffffff810983a3>] ? ktime_get+0xb1/0x128
>[  244.794170]  [<ffffffff817323e9>] ? cpuidle_enter_state+0x2f/0xbd
>[  244.794219]  [<ffffffff817323fb>] cpuidle_enter_state+0x41/0xbd
>[  244.794270]  [<ffffffff81732522>] cpuidle_enter+0x17/0x19
>[  244.794324]  [<ffffffff810779ba>] cpu_startup_entry+0x233/0x371
>[  244.794377]  [<ffffffff81027c1c>] start_secondary+0x1c2/0x1c7
>[  244.794425] ---[ end trace fbf9f9228fdc84ae ]---
>[  272.791589] BUG: soft lockup - CPU#2 stuck for 23s! [kms_plane:4639]
>[  272.791665] Modules linked in: netconsole configfs ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel pcspkr snd_hda_controller snd_hda_codec snd_hwdep lpc_ich snd_pcm mfd_core i2c_i801 nouveau snd_timer r8169 ttm snd soundcore iosf_mbi battery wmi ac acpi_cpufreq uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev i915 button video drm_kms_helper drm [last unloaded: netconsole]
>[  272.794399] irq event stamp: 94948
>[  272.794465] hardirqs last  enabled at (94947): [<ffffffff818358e7>] mutex_lock_nested+0x188/0x2d2
>[  272.794597] hardirqs last disabled at (94948): [<ffffffff81836ec3>] _raw_spin_lock_irq+0x17/0x46
>[  272.794930] softirqs last  enabled at (94894): [<ffffffff81043bd1>] __do_softirq+0x20d/0x294
>[  272.795059] softirqs last disabled at (94825): [<ffffffff81043e4b>] irq_exit+0x44/0x9a
>[  272.795190] CPU: 2 PID: 4639 Comm: kms_plane Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  272.795263] task: ffff8801783f0000 ti: ffff88017338c000 task.ti: ffff88017338c000
>[  272.795329] RIP: 0010:[<ffffffff810a44c4>]  [<ffffffff810a44c4>] csd_lock_wait.isra.3+0xd/0x14
>[  272.795461] RSP: 0018:ffff88017338f6a8  EFLAGS: 00000202
>[  272.795527] RAX: 0000000000000000 RBX: ffffffff81838620 RCX: 0000000000000040
>[  272.795593] RDX: 000000000000000b RSI: 0000000000000040 RDI: ffff88017fc17390
>[  272.795658] RBP: ffff88017338f6a8 R08: ffff88017fd13cd0 R09: 0000000300000001
>[  272.795724] R10: 000000000000000b R11: 0000000000000000 R12: ffff88017338f618
>[  272.795790] R13: ffff88017fd13140 R14: ffff88017338c000 R15: ffff8801783f0000
>[  272.795856] FS:  00007fc5018578c0(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
>[  272.795922] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  272.795988] CR2: 0000000002281000 CR3: 0000000178e56000 CR4: 00000000001007e0
>[  272.796057] Stack:
>[  272.796121]  ffff88017338f718 ffffffff810a4ac6 0000000000000000 0000000000000003
>[  272.796433]  ffff88017fd97378 0000000000000003 0000000000000000 ffffffff817321ac
>[  272.796748]  0000000000000000 00000000ffffffff 0000000000000000 0000000000000000
>[  272.797059] Call Trace:
>[  272.797128]  [<ffffffff810a4ac6>] smp_call_function_many+0x1e8/0x229
>[  272.797202]  [<ffffffff817321ac>] ? cpufreq_governor_dbs+0x5e1/0x5e1
>[  272.797273]  [<ffffffff810a4c25>] smp_call_function+0x22/0x26
>[  272.797345]  [<ffffffff817321d3>] cpuidle_latency_notify+0x1c/0x23
>[  272.797417]  [<ffffffff81060537>] notifier_call_chain+0x37/0x61
>[  272.797489]  [<ffffffff81060786>] __blocking_notifier_call_chain+0x4c/0x65
>[  272.797565]  [<ffffffff810607b3>] blocking_notifier_call_chain+0x14/0x16
>[  272.797638]  [<ffffffff81083569>] pm_qos_update_target+0x133/0x15d
>[  272.797710]  [<ffffffff810836d3>] __pm_qos_update_request+0x62/0x7b
>[  272.797782]  [<ffffffff8108373b>] pm_qos_update_request+0x4f/0x56
>[  272.797893]  [<ffffffffa00e7c52>] intel_dp_aux_ch+0x6b/0x5e6 [i915]
>[  272.797977]  [<ffffffffa0059606>] ? drm_dp_dpcd_access+0x55/0xe9 [drm_kms_helper]
>[  272.798259]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  272.798366]  [<ffffffffa00e82ca>] intel_dp_aux_transfer+0xfd/0x124 [i915]
>[  272.798448]  [<ffffffffa0059614>] drm_dp_dpcd_access+0x63/0xe9 [drm_kms_helper]
>[  272.798530]  [<ffffffffa00596b5>] drm_dp_dpcd_write+0x1b/0x1f [drm_kms_helper]
>[  272.798640]  [<ffffffffa00e9397>] intel_dp_sink_dpms+0x7d/0x96 [i915]
>[  272.798755]  [<ffffffffa00ea233>] intel_enable_dp+0x56/0x87 [i915]
>[  272.798866]  [<ffffffffa00ea398>] vlv_pre_enable_dp+0x111/0x12b [i915]
>[  272.798975]  [<ffffffffa00d0b3b>] valleyview_crtc_enable+0x963/0xa4a [i915]
>[  272.799083]  [<ffffffffa00cde04>] __intel_set_mode+0x114b/0x124f [i915]
>[  272.799193]  [<ffffffffa00d41c4>] intel_set_mode+0x16/0x2f [i915]
>[  272.799303]  [<ffffffffa00d4ee3>] intel_crtc_set_config+0x76c/0xaca [i915]
>[  272.799399]  [<ffffffffa000cd2a>] drm_mode_set_config_internal+0x5a/0xd2 [drm]
>[  272.799493]  [<ffffffffa0010956>] drm_mode_setcrtc+0x3ef/0x499 [drm]
>[  272.799581]  [<ffffffffa0003223>] drm_ioctl+0x2bd/0x425 [drm]
>[  272.799659]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  272.799748]  [<ffffffffa0010567>] ? drm_mode_setplane+0x181/0x181 [drm]
>[  272.799828]  [<ffffffff8114b525>] do_vfs_ioctl+0x455/0x49f
>[  272.799906]  [<ffffffff811541f5>] ? __fget+0x5/0xb2
>[  272.799979]  [<ffffffff81081655>] ? lockdep_sys_exit+0x1d/0x88
>[  272.800053]  [<ffffffff81393414>] ? lockdep_sys_exit_thunk+0x35/0x67
>[  272.800126]  [<ffffffff8114b5c2>] SyS_ioctl+0x53/0x81
>[  272.800200]  [<ffffffff81837a12>] system_call_fastpath+0x16/0x1b
>[  272.800268] Code: 0e 48 c7 c7 08 60 d9 81 31 c0 e8 d5 86 78 00 5d c3 66 90 0f 1f 44 00 00 55 48 89 e5 5d c3 0f 1f 44 00 00 55 48 89 e5 eb 02 f3 90 <f6> 07 01 75 f9 5d c3 0f 1f 44 00 00 55 31 c0 48 89 e5 41 57 49 
>[  276.988999] INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 3, t=60002 jiffies, g=15127, c=15126, q=3023)
>[  276.989171] sending NMI to all CPUs:
>[  276.989206] NMI backtrace for cpu 1
>[  276.989248] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  276.989286] task: ffff880179eca0f0 ti: ffff880179ed4000 task.ti: ffff880179ed4000
>[  276.989323] RIP: 0010:[<ffffffff8139223e>]  [<ffffffff8139223e>] delay_tsc+0x23/0x50
>[  276.989398] RSP: 0018:ffff88017fc83db8  EFLAGS: 00000002
>[  276.989435] RAX: 000000008c1fbe6c RBX: ffff88017fc13140 RCX: 000000008c1fbe40
>[  276.989473] RDX: 0000000000000085 RSI: 0000000000000001 RDI: 0000000000000001
>[  276.989516] RBP: ffff88017fc83db8 R08: 0000000000000001 R09: 0000000000000001
>[  276.989553] R10: 0000000000000001 R11: 0000000000000000 R12: 00000000485addb3
>[  276.989596] R13: 000000006d19b000 R14: ffff88017fc132c0 R15: ffffffff839ac0c8
>[  276.989636] FS:  0000000000000000(0000) GS:ffff88017fc80000(0000) knlGS:0000000000000000
>[  276.989673] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  276.989711] CR2: 00007fc042553095 CR3: 0000000173c22000 CR4: 00000000001007e0
>[  276.989747] Stack:
>[  276.989783]  ffff88017fc83dc8 ffffffff81392199 ffff88017fc83df8 ffffffff81082c86
>[  276.989956]  ffff88017fc13140 ffff88017fc13140 ffff88017fc13140 ffffffff839ac080
>[  276.990122]  ffff88017fc83e28 ffffffff81836dd9 ffffffff81074cef 0000000000000000
>[  276.990298] Call Trace:
>[  276.990341]  <IRQ> 
>[  276.990379]  [<ffffffff81392199>] __delay+0xf/0x11
>[  276.990502]  [<ffffffff81082c86>] do_raw_spin_lock+0xb1/0x10a
>[  276.990547]  [<ffffffff81836dd9>] _raw_spin_lock+0x39/0x40
>[  276.990592]  [<ffffffff81074cef>] ? sched_rt_period_timer+0xab/0x29a
>[  276.990637]  [<ffffffff81074cef>] sched_rt_period_timer+0xab/0x29a
>[  276.990682]  [<ffffffff81074c44>] ? post_schedule_rt+0x10/0x10
>[  276.990728]  [<ffffffff8105f074>] __run_hrtimer+0xd4/0x19a
>[  276.990773]  [<ffffffff8105f92d>] hrtimer_interrupt+0xec/0x1d9
>[  276.990822]  [<ffffffff81029138>] local_apic_timer_interrupt+0x55/0x59
>[  276.990871]  [<ffffffff8183a4f6>] smp_apic_timer_interrupt+0x40/0x52
>[  276.990916]  [<ffffffff8183892f>] apic_timer_interrupt+0x6f/0x80
>[  276.991165]  <EOI> 
>[  276.991204]  [<ffffffff81838620>] ? retint_restore_args+0xe/0xe
>[  276.991327]  [<ffffffff81732a85>] ? poll_idle+0x24/0xb9
>[  276.991371]  [<ffffffff81732ac5>] ? poll_idle+0x64/0xb9
>[  276.991414]  [<ffffffff81732a85>] ? poll_idle+0x24/0xb9
>[  276.991459]  [<ffffffff810983a3>] ? ktime_get+0xb1/0x128
>[  276.991503]  [<ffffffff817323e9>] ? cpuidle_enter_state+0x2f/0xbd
>[  276.991552]  [<ffffffff817323fb>] cpuidle_enter_state+0x41/0xbd
>[  276.991598]  [<ffffffff81732522>] cpuidle_enter+0x17/0x19
>[  276.991642]  [<ffffffff810779ba>] cpu_startup_entry+0x233/0x371
>[  276.991687]  [<ffffffff81027c1c>] start_secondary+0x1c2/0x1c7
>[  276.991728] Code: 01 e8 71 ff ff ff 5d c3 0f 1f 44 00 00 55 48 89 e5 65 8b 34 25 2c b0 00 00 66 66 90 0f ae e8 0f 31 89 c1 66 66 90 0f ae e8 0f 31 <89> c2 29 ca 39 fa 73 23 f3 90 65 44 8b 04 25 2c b0 00 00 44 39 
>[  276.994135] NMI backtrace for cpu 0
>[  276.994209] CPU: 0 PID: 1024 Comm: kworker/u8:2 Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  276.994296] task: ffff880173ef41e0 ti: ffff880173fe4000 task.ti: ffff880173fe4000
>[  276.994365] RIP: 0010:[<ffffffff81392234>]  [<ffffffff81392234>] delay_tsc+0x19/0x50
>[  276.994502] RSP: 0018:ffff880173fe71b8  EFLAGS: 00000002
>[  276.994570] RAX: 000000008c1fbe82 RBX: ffff88017fc13140 RCX: 000000008c1fbe2a
>[  276.994638] RDX: 0000000000000085 RSI: 0000000000000000 RDI: 0000000000000001
>[  276.994706] RBP: ffff880173fe71b8 R08: 0000000000000001 R09: 0000000000000001
>[  276.994775] R10: 0000000000000001 R11: 0000000000000000 R12: 00000000493fe2ce
>[  276.994843] R13: 000000006d19b000 R14: 0000000000000000 R15: 000000000000000b
>[  276.994912] FS:  0000000000000000(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000
>[  276.994981] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  276.995049] CR2: 0000000000000028 CR3: 0000000002010000 CR4: 00000000001007f0
>[  276.995120] Stack:
>[  276.995406]  ffff880173fe71c8 ffffffff81392199 ffff880173fe71f8 ffffffff81082c86
>[  276.995735]  0000000000000000 ffff88017fc13140 0000000000000000 0000000000000046
>[  276.996065]  ffff880173fe7228 ffffffff81836eeb ffffffff81832e59 ffff88017fc13140
>[  276.996392] Call Trace:
>[  276.996465]  [<ffffffff81392199>] __delay+0xf/0x11
>[  276.996542]  [<ffffffff81082c86>] do_raw_spin_lock+0xb1/0x10a
>[  276.996618]  [<ffffffff81836eeb>] _raw_spin_lock_irq+0x3f/0x46
>[  276.996694]  [<ffffffff81832e59>] ? __schedule+0xec/0x967
>[  276.996770]  [<ffffffff81832e59>] __schedule+0xec/0x967
>[  276.996846]  [<ffffffff8108d024>] ? vprintk_emit+0x476/0x4c9
>[  276.996927]  [<ffffffff8182cbca>] ? printk+0x4d/0x4f
>[  276.997003]  [<ffffffff8183373e>] schedule+0x6a/0x6c
>[  276.997079]  [<ffffffff81041758>] do_exit+0x111/0x928
>[  276.997155]  [<ffffffff8108dc9c>] ? kmsg_dump+0xdd/0xe6
>[  276.997231]  [<ffffffff8108dbe4>] ? kmsg_dump+0x25/0xe6
>[  276.997306]  [<ffffffff810056c7>] oops_end+0xa7/0xb0
>[  276.997382]  [<ffffffff8182b35f>] no_context+0x299/0x2c5
>[  276.997457]  [<ffffffff8182b6a4>] __bad_area_nosemaphore+0x1ce/0x1ef
>[  276.997533]  [<ffffffff8107b435>] ? cpuacct_charge+0x5/0x8c
>[  276.997609]  [<ffffffff8182b6d8>] bad_area_nosemaphore+0x13/0x15
>[  276.997684]  [<ffffffff81035774>] __do_page_fault+0x416/0x4b5
>[  276.997765]  [<ffffffff8107b4b1>] ? cpuacct_charge+0x81/0x8c
>[  276.997842]  [<ffffffff8106e89f>] ? check_preempt_wakeup+0x139/0x192
>[  276.997918]  [<ffffffff813933dd>] ? trace_hardirqs_off_thunk+0x3a/0x3c
>[  276.997994]  [<ffffffff810358bc>] do_page_fault+0xc/0xe
>[  276.998069]  [<ffffffff818396b2>] page_fault+0x22/0x30
>[  276.998145]  [<ffffffff8105cf6b>] ? kthread_data+0x10/0x16
>[  276.998222]  [<ffffffff8105790c>] wq_worker_sleeping+0x12/0x89
>[  276.998297]  [<ffffffff81832ed2>] __schedule+0x165/0x967
>[  276.998373]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  276.998448]  [<ffffffff81371d05>] ? put_io_context+0x4d/0x87
>[  276.998523]  [<ffffffff81371e00>] ? put_io_context_active+0xa8/0xb1
>[  276.998598]  [<ffffffff8183373e>] schedule+0x6a/0x6c
>[  276.998677]  [<ffffffff81041f10>] do_exit+0x8c9/0x928
>[  276.998753]  [<ffffffff810056c7>] oops_end+0xa7/0xb0
>[  276.999018]  [<ffffffff8182b35f>] no_context+0x299/0x2c5
>[  276.999094]  [<ffffffff8182b6a4>] __bad_area_nosemaphore+0x1ce/0x1ef
>[  276.999170]  [<ffffffff8107eefc>] ? __lock_acquire+0x6a1/0x1803
>[  276.999245]  [<ffffffff8182b6d8>] bad_area_nosemaphore+0x13/0x15
>[  276.999320]  [<ffffffff81035774>] __do_page_fault+0x416/0x4b5
>[  276.999395]  [<ffffffff8107cbbd>] ? __lock_is_held+0x32/0x54
>[  276.999470]  [<ffffffff81062df6>] ? ttwu_stat+0x51/0x105
>[  276.999545]  [<ffffffff813933dd>] ? trace_hardirqs_off_thunk+0x3a/0x3c
>[  276.999621]  [<ffffffff810358bc>] do_page_fault+0xc/0xe
>[  276.999701]  [<ffffffff818396b2>] page_fault+0x22/0x30
>[  276.999815]  [<ffffffffa00e5f4f>] ? intel_dp_set_signal_levels+0x496/0x822 [i915]
>[  276.999896]  [<ffffffff81835bed>] ? mutex_unlock+0xe/0x10
>[  276.999976]  [<ffffffffa005961e>] ? drm_dp_dpcd_access+0x6d/0xe9 [drm_kms_helper]
>[  277.000089]  [<ffffffffa00e8523>] intel_dp_reset_link_train.constprop.16+0x21/0x36 [i915]
>[  277.000203]  [<ffffffffa00e9c05>] intel_dp_start_link_train+0xaf/0x1fc [i915]
>[  277.000316]  [<ffffffffa00ea796>] intel_dp_check_link_status+0x112/0x13e [i915]
>[  277.000429]  [<ffffffffa00ea8a8>] intel_dp_hpd_pulse+0xe6/0x13f [i915]
>[  277.000536]  [<ffffffffa00ac7fc>] i915_digport_work_func+0xe6/0xff [i915]
>[  277.000617]  [<ffffffff81056d72>] process_one_work+0x25a/0x442
>[  277.000692]  [<ffffffff81056cdf>] ? process_one_work+0x1c7/0x442
>[  277.000769]  [<ffffffff81057629>] worker_thread+0x2f8/0x400
>[  277.000849]  [<ffffffff81057331>] ? pool_mayday_timeout+0x12d/0x12d
>[  277.000924]  [<ffffffff8105cbf0>] kthread+0xed/0xf5
>[  277.001001]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  277.001077]  [<ffffffff8183796c>] ret_from_fork+0x7c/0xb0
>[  277.001153]  [<ffffffff8105cb03>] ? __init_kthread_worker+0x5a/0x5a
>[  277.001224] Code: 00 00 48 89 e5 f7 e2 48 8d 7a 01 e8 71 ff ff ff 5d c3 0f 1f 44 00 00 55 48 89 e5 65 8b 34 25 2c b0 00 00 66 66 90 0f ae e8 0f 31 <89> c1 66 66 90 0f ae e8 0f 31 89 c2 29 ca 39 fa 73 23 f3 90 65 
>[  277.005678] NMI backtrace for cpu 2
>[  277.005755] CPU: 2 PID: 4639 Comm: kms_plane Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  277.006089] task: ffff8801783f0000 ti: ffff88017338c000 task.ti: ffff88017338c000
>[  277.006157] RIP: 0010:[<ffffffff810a44c4>]  [<ffffffff810a44c4>] csd_lock_wait.isra.3+0xd/0x14
>[  277.006292] RSP: 0018:ffff88017338f6a8  EFLAGS: 00000202
>[  277.006358] RAX: 0000000000000000 RBX: ffff88017fd13cc0 RCX: 0000000000000040
>[  277.006425] RDX: 000000000000000b RSI: 0000000000000040 RDI: ffff88017fc17390
>[  277.006491] RBP: ffff88017338f6a8 R08: ffff88017fd13cd0 R09: 0000000300000001
>[  277.006563] R10: 000000000000000b R11: 0000000000000000 R12: ffff88017fd13cc8
>[  277.006630] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
>[  277.006696] FS:  00007fc5018578c0(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
>[  277.006763] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  277.006828] CR2: 0000000002281000 CR3: 0000000178e56000 CR4: 00000000001007e0
>[  277.006893] Stack:
>[  277.006958]  ffff88017338f718 ffffffff810a4ac6 0000000000000000 0000000000000003
>[  277.007273]  ffff88017fd97378 0000000000000003 0000000000000000 ffffffff817321ac
>[  277.007593]  0000000000000000 00000000ffffffff 0000000000000000 0000000000000000
>[  277.007908] Call Trace:
>[  277.007979]  [<ffffffff810a4ac6>] smp_call_function_many+0x1e8/0x229
>[  277.008058]  [<ffffffff817321ac>] ? cpufreq_governor_dbs+0x5e1/0x5e1
>[  277.008130]  [<ffffffff810a4c25>] smp_call_function+0x22/0x26
>[  277.008203]  [<ffffffff817321d3>] cpuidle_latency_notify+0x1c/0x23
>[  277.008275]  [<ffffffff81060537>] notifier_call_chain+0x37/0x61
>[  277.008348]  [<ffffffff81060786>] __blocking_notifier_call_chain+0x4c/0x65
>[  277.008420]  [<ffffffff810607b3>] blocking_notifier_call_chain+0x14/0x16
>[  277.008493]  [<ffffffff81083569>] pm_qos_update_target+0x133/0x15d
>[  277.008565]  [<ffffffff810836d3>] __pm_qos_update_request+0x62/0x7b
>[  277.008637]  [<ffffffff8108373b>] pm_qos_update_request+0x4f/0x56
>[  277.008748]  [<ffffffffa00e7c52>] intel_dp_aux_ch+0x6b/0x5e6 [i915]
>[  277.008832]  [<ffffffffa0059606>] ? drm_dp_dpcd_access+0x55/0xe9 [drm_kms_helper]
>[  277.008910]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  277.009021]  [<ffffffffa00e82ca>] intel_dp_aux_transfer+0xfd/0x124 [i915]
>[  277.009103]  [<ffffffffa0059614>] drm_dp_dpcd_access+0x63/0xe9 [drm_kms_helper]
>[  277.009185]  [<ffffffffa00596b5>] drm_dp_dpcd_write+0x1b/0x1f [drm_kms_helper]
>[  277.009295]  [<ffffffffa00e9397>] intel_dp_sink_dpms+0x7d/0x96 [i915]
>[  277.009406]  [<ffffffffa00ea233>] intel_enable_dp+0x56/0x87 [i915]
>[  277.009722]  [<ffffffffa00ea398>] vlv_pre_enable_dp+0x111/0x12b [i915]
>[  277.009832]  [<ffffffffa00d0b3b>] valleyview_crtc_enable+0x963/0xa4a [i915]
>[  277.009941]  [<ffffffffa00cde04>] __intel_set_mode+0x114b/0x124f [i915]
>[  277.010051]  [<ffffffffa00d41c4>] intel_set_mode+0x16/0x2f [i915]
>[  277.010161]  [<ffffffffa00d4ee3>] intel_crtc_set_config+0x76c/0xaca [i915]
>[  277.010257]  [<ffffffffa000cd2a>] drm_mode_set_config_internal+0x5a/0xd2 [drm]
>[  277.010357]  [<ffffffffa0010956>] drm_mode_setcrtc+0x3ef/0x499 [drm]
>[  277.010446]  [<ffffffffa0003223>] drm_ioctl+0x2bd/0x425 [drm]
>[  277.010524]  [<ffffffff81080d96>] ? trace_hardirqs_on+0xd/0xf
>[  277.010612]  [<ffffffffa0010567>] ? drm_mode_setplane+0x181/0x181 [drm]
>[  277.010691]  [<ffffffff8114b525>] do_vfs_ioctl+0x455/0x49f
>[  277.010764]  [<ffffffff811541f5>] ? __fget+0x5/0xb2
>[  277.010836]  [<ffffffff81081655>] ? lockdep_sys_exit+0x1d/0x88
>[  277.010910]  [<ffffffff81393414>] ? lockdep_sys_exit_thunk+0x35/0x67
>[  277.010982]  [<ffffffff8114b5c2>] SyS_ioctl+0x53/0x81
>[  277.011058]  [<ffffffff81837a12>] system_call_fastpath+0x16/0x1b
>[  277.011127] Code: 0e 48 c7 c7 08 60 d9 81 31 c0 e8 d5 86 78 00 5d c3 66 90 0f 1f 44 00 00 55 48 89 e5 5d c3 0f 1f 44 00 00 55 48 89 e5 eb 02 f3 90 <f6> 07 01 75 f9 5d c3 0f 1f 44 00 00 55 31 c0 48 89 e5 41 57 49 
>[  277.015420] NMI backtrace for cpu 3
>[  277.015462] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D W     3.16.0-rc6_drm-intel-nightly_af1aab_20140724_debug+ #766
>[  277.015503] task: ffff880179ee0000 ti: ffff880179edc000 task.ti: ffff880179edc000
>[  277.015541] RIP: 0010:[<ffffffff8102d0f3>]  [<ffffffff8102d0f3>] flat_send_IPI_mask+0x8b/0x8c
>[  277.015620] RSP: 0018:ffff88017fd83da0  EFLAGS: 00000046
>[  277.015659] RAX: ffff880179ee0000 RBX: ffffffff82043180 RCX: 0000000000000001
>[  277.015705] RDX: ffffffff820265d0 RSI: 0000000000000002 RDI: ffffffff8102d0e2
>[  277.015744] RBP: ffff88017fd83db8 R08: 0000000000000001 R09: 0000000000000000
>[  277.015783] R10: 0000000000000a38 R11: ffff88017363ccc0 R12: ffff88017fd8d520
>[  277.015821] R13: 0000000000000001 R14: ffffffff82043180 R15: ffffffff82043280
>[  277.015860] FS:  0000000000000000(0000) GS:ffff88017fd80000(0000) knlGS:0000000000000000
>[  277.016097] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[  277.016137] CR2: 00007fd394007148 CR3: 0000000003601000 CR4: 00000000001007e0
>[  277.016174] Stack:
>[  277.016210]  ffffffff8102a8cc ffff88017fd8ee98 ffffffff82043180 ffff88017fd83e18
>[  277.016390]  ffffffff81096a0a 0000000000000bcf ffffffff820f7ad8 0000000000000003
>[  277.016564]  0000000000000082 0000000000000000 ffff880179ee0000 0000000000000000
>[  277.016740] Call Trace:
>[  277.016778]  <IRQ> 
>[  277.016816]  [<ffffffff8102a8cc>] ? arch_trigger_all_cpu_backtrace+0x89/0xbd
>[  277.016940]  [<ffffffff81096a0a>] rcu_check_callbacks+0x450/0x580
>[  277.016986]  [<ffffffff8109fff6>] ? tick_nohz_handler+0x91/0x91
>[  277.017030]  [<ffffffff8104b0ed>] update_process_times+0x3f/0x69
>[  277.017074]  [<ffffffff8109fe0d>] tick_sched_handle+0x4a/0x59
>[  277.017118]  [<ffffffff810a0031>] tick_sched_timer+0x3b/0x5a
>[  277.017163]  [<ffffffff8105f074>] __run_hrtimer+0xd4/0x19a
>[  277.017207]  [<ffffffff8105f92d>] hrtimer_interrupt+0xec/0x1d9
>[  277.017256]  [<ffffffff81029138>] local_apic_timer_interrupt+0x55/0x59
>[  277.017301]  [<ffffffff8183a4f6>] smp_apic_timer_interrupt+0x40/0x52
>[  277.017345]  [<ffffffff8183892f>] apic_timer_interrupt+0x6f/0x80
>[  277.017385]  <EOI> 
>[  277.017423]  [<ffffffff81838620>] ? retint_restore_args+0xe/0xe
>[  277.017546]  [<ffffffff81732a85>] ? poll_idle+0x24/0xb9
>[  277.017590]  [<ffffffff81732ac5>] ? poll_idle+0x64/0xb9
>[  277.017634]  [<ffffffff81732a85>] ? poll_idle+0x24/0xb9
>[  277.017680]  [<ffffffff810983a3>] ? ktime_get+0xb1/0x128
>[  277.017730]  [<ffffffff817323e9>] ? cpuidle_enter_state+0x2f/0xbd
>[  277.017775]  [<ffffffff817323fb>] cpuidle_enter_state+0x41/0xbd
>[  277.017820]  [<ffffffff81732522>] cpuidle_enter+0x17/0x19
>[  277.017864]  [<ffffffff810779ba>] cpu_startup_entry+0x233/0x371
>[  277.017910]  [<ffffffff81027c1c>] start_secondary+0x1c2/0x1c7
>[  277.017951] Code: 83 fc 02 41 0f 44 c5 89 04 25 00 c3 5f ff f6 c7 02 75 09 53 9d e8 2e f6 04 00 eb 07 e8 a0 3c 05 00 53 9d 5b 41 5c 41 5d 41 5e 5d <c3> 0f 1f 44 00 00 55 48 89 e5 41 56 41 55 41 54 41 89 f4 53 48

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