Attachment 112904 Details for Bug 88845 – dmesg

dmesg

dmesg_bsw01_renderhang_0128.txt (text/plain), 18.67 KB, created by lu hua on 2015-01-28 08:25:06 UTC

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Creator: lu hua

Created: 2015-01-28 08:25:06 UTC

Size: 18.67 KB

patch

obsolete

>[   10.875187] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   10.875402] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   10.933622] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   10.933651] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   10.933892] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   10.934714] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   10.934744] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   10.935080] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   10.936700] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   10.936729] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   10.936804] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   10.937637] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   10.937666] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   10.937743] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   10.938548] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   10.938581] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   10.938837] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.064356] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   11.064394] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   11.064497] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.066355] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   11.066383] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   11.066443] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.067206] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   11.067235] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   11.067594] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.068642] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   11.068671] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   11.069045] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.070771] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   11.070795] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   11.070873] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.071696] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   11.071728] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   11.071804] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.072607] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00200000, dig 0x00000000
>[   11.072633] [drm:intel_hpd_irq_handler] digital hpd port D - short
>[   11.072883] [drm:intel_dp_hpd_pulse] got hpd irq on port D - short
>[   11.222479] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00400000, dig 0x00000000
>[   11.222487] [drm:intel_hpd_irq_handler] digital hpd port D - long
>[   11.222496] [drm:intel_hpd_irq_handler] Received HPD interrupt on PIN 6 - cnt: 6
>[   11.222537] [drm:intel_dp_hpd_pulse] got hpd irq on port D - long
>[   11.222559] [drm:i915_hotplug_work_func] running encoder hotplug functions
>[   11.222569] [drm:i915_hotplug_work_func] Connector HDMI-A-2 (pin 6) received hotplug event.
>[   11.222598] [drm:i915_hotplug_work_func] Connector DP-2 (pin 6) received hotplug event.
>[   11.222612] [drm:intel_hdmi_detect] [CONNECTOR:47:HDMI-A-2]
>[   11.222999] [drm:gmbus_xfer] GMBUS [i915 gmbus panel] NAK for addr: 0050 r(1)
>[   11.223006] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus panel
>[   11.223012] [drm:intel_dp_detect] [CONNECTOR:49:DP-2]
>[   11.224569] [drm:intel_hpd_irq_handler] hotplug event received, stat 0x00400000, dig 0x00000000
>[   11.224602] [drm:intel_hpd_irq_handler] digital hpd port D - long
>[   11.224612] [drm:intel_hpd_irq_handler] HPD interrupt storm detected on PIN 6
>[   11.224677] [drm:intel_dp_hpd_pulse] got hpd irq on port D - long
>[   11.224705] [drm:i915_hotplug_work_func] running encoder hotplug functions
>[   11.224714] [drm:i915_hotplug_work_func] Connector HDMI-A-2 (pin 6) received hotplug event.
>[   11.224720] [drm:i915_hotplug_work_func] Connector DP-2 (pin 6) received hotplug event.
>[   11.224727] [drm:intel_hdmi_detect] [CONNECTOR:47:HDMI-A-2]
>[   11.225212] [drm:gmbus_xfer] GMBUS [i915 gmbus panel] NAK for addr: 0050 r(1)
>[   11.225219] [drm:drm_do_probe_ddc_edid] drm: skipping non-existent adapter i915 gmbus panel
>[   11.225225] [drm:intel_dp_detect] [CONNECTOR:49:DP-2]
>[   13.973192] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   13.973214] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   13.973231] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   13.973684] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   13.974050] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   16.101443] NET: Registered protocol family 10
>[   16.981282] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   16.981298] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   23.989978] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   23.990005] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   23.990021] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   23.990411] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   23.990941] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   26.997988] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   26.998009] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   34.006097] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   34.006120] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   34.006137] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   34.006522] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   34.006883] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   37.014246] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   37.014267] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   44.022857] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   44.022884] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   44.022901] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   44.023384] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   44.024038] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   47.031074] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   47.031100] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   54.039270] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   54.039293] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   54.039310] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   54.039713] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   54.040157] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   57.047456] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   57.047481] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   64.055810] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   64.055835] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   64.055853] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   64.056345] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   64.056879] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   67.063700] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   67.063719] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   74.072319] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   74.072345] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   74.072362] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   74.072933] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   74.073328] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   77.080488] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   77.080513] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   84.088585] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   84.088609] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   84.088627] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   84.089010] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   84.089375] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   87.096936] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   87.096960] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[   94.105246] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[   94.105271] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[   94.105285] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[   94.105808] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[   94.106265] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[   97.113398] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[   97.113419] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[  104.121738] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[  104.121764] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[  104.121780] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[  104.122240] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  104.122882] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  107.129955] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[  107.129979] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[  114.138312] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[  114.138337] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[  114.138354] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[  114.138739] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  114.139251] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  117.146336] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[  117.146357] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[  124.154684] [drm:intel_dp_detect] [CONNECTOR:41:eDP-1]
>[  124.154710] [drm:edp_panel_vdd_on] Turning eDP port C VDD on
>[  124.154725] [drm:edp_panel_vdd_on] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd000f
>[  124.155203] [drm:intel_dp_probe_oui] Sink OUI: 001cf8
>[  124.155784] [drm:intel_dp_probe_oui] Branch OUI: 000000
>[  124.186700] [drm:intel_hpd_irq_reenable_work] Reenabling HPD on connector eDP-1
>[  125.327184] gem_exec_nop: executing
>[  125.327426] [drm:i915_gem_open]
>[  125.330973] [drm:gen8_ppgtt_init] Allocated 2 pages for page directories (0 wasted)
>[  125.330979] [drm:gen8_ppgtt_init] Allocated 1024 pages for page tables (0 wasted)
>[  125.331209] [drm:i915_gem_object_create_stolen] creating stolen object: size=20000
>[  125.331219] [drm:i915_pages_create_for_stolen] offset=0x0, size=131072
>[  125.331717] [drm:i915_gem_object_create_stolen] creating stolen object: size=20000
>[  125.331724] [drm:i915_pages_create_for_stolen] offset=0x20000, size=131072
>[  125.331959] [drm:i915_gem_object_create_stolen] creating stolen object: size=20000
>[  125.331974] [drm:i915_pages_create_for_stolen] offset=0x40000, size=131072
>[  125.332117] [drm:i915_gem_object_create_stolen] creating stolen object: size=20000
>[  125.332124] [drm:i915_pages_create_for_stolen] offset=0x60000, size=131072
>[  125.332351] [drm:i915_gem_open]
>[  125.335879] [drm:gen8_ppgtt_init] Allocated 2 pages for page directories (0 wasted)
>[  125.335890] [drm:gen8_ppgtt_init] Allocated 1024 pages for page tables (0 wasted)
>[  125.336029] gem_exec_nop: starting subtest render
>[  127.162863] [drm:edp_panel_vdd_off_sync] Turning eDP port C VDD off
>[  127.162883] [drm:edp_panel_vdd_off_sync] PP_STATUS: 0x80000008 PP_CONTROL: 0xabcd0007
>[  131.767246] [drm] stuck on render ring
>[  131.799419] [drm] GPU HANG: ecode 8:0:0xfedffffe, in gem_exec_nop [4427], reason: Ring hung, action: reset
>[  131.799426] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
>[  131.799429] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
>[  131.799432] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
>[  131.799435] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
>[  131.799438] [drm] GPU crash dump saved to /sys/class/drm/card0/error
>[  131.800203] [drm:i915_error_work_func] resetting chip
>[  131.801775] drm/i915: Resetting chip after gpu hang
>[  131.801791] [drm:gen8_init_common_ring] Execlists enabled for render ring
>[  131.801803] [drm:gen8_init_common_ring] Execlists enabled for bsd ring
>[  131.801809] [drm:gen8_init_common_ring] Execlists enabled for blitter ring
>[  131.801815] [drm:gen8_init_common_ring] Execlists enabled for video enhancement ring
>[  131.801911] [drm:i9xx_update_primary_plane] Writing base 00887000 00000000 0 0 7680
>[  131.802039] ------------[ cut here ]------------
>[  131.802092] WARNING: CPU: 3 PID: 4427 at drivers/gpu/drm/i915/intel_lrc.c:506 intel_logical_ring_advance_and_submit+0x73/0x254 [i915]()
>[  131.802096] execlist context submission without request
>[  131.802099] Modules linked in: ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic serio_raw pcspkr snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm lpc_ich snd_timer mfd_core snd soundcore i2c_i801 battery ac acpi_cpufreq joydev i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
>[  131.802147] CPU: 3 PID: 4427 Comm: gem_exec_nop Not tainted 3.19.0-rc6_drm-intel-nightly_70438b_20150128+ #1026
>[  131.802151]  0000000000000000 0000000000000009 ffffffff81799da8 ffff880175213a78
>[  131.802158]  ffffffff8103bdec 0000000000012480 ffffffffa00ba963 0000000000000000
>[  131.802164]  ffff8801754518b8 0000000000000000 ffff880175450000 ffff8800028e4900
>[  131.802171] Call Trace:
>[  131.802184]  [<ffffffff81799da8>] ? dump_stack+0x40/0x50
>[  131.802193]  [<ffffffff8103bdec>] ? warn_slowpath_common+0x98/0xb0
>[  131.802228]  [<ffffffffa00ba963>] ? intel_logical_ring_advance_and_submit+0x73/0x254 [i915]
>[  131.802236]  [<ffffffff8103be9c>] ? warn_slowpath_fmt+0x45/0x4a
>[  131.802271]  [<ffffffffa00ba963>] ? intel_logical_ring_advance_and_submit+0x73/0x254 [i915]
>[  131.802297]  [<ffffffffa010c407>] ? logical_ring_wait_for_space+0xc2/0x150 [i915]
>[  131.802333]  [<ffffffffa00bae2a>] ? intel_logical_ring_begin+0xea/0x1ea [i915]
>[  131.802341]  [<ffffffff8110d587>] ? kmem_cache_free+0xf6/0x134
>[  131.802376]  [<ffffffffa00bb006>] ? gen8_emit_flush_render+0x3d/0xe1 [i915]
>[  131.802411]  [<ffffffffa00bb482>] ? intel_execlists_submission+0x230/0x34b [i915]
>[  131.802441]  [<ffffffffa009e347>] ? i915_gem_do_execbuffer.isra.12+0xca1/0xd88 [i915]
>[  131.802449]  [<ffffffff8105d25f>] ? check_preempt_wakeup+0x117/0x169
>[  131.802455]  [<ffffffff8105eafc>] ? enqueue_task_fair+0x441/0x88d
>[  131.802462]  [<ffffffff8110d964>] ? __kmalloc+0x66/0x151
>[  131.802491]  [<ffffffffa009f381>] ? i915_gem_execbuffer2+0x172/0x209 [i915]
>[  131.802520]  [<ffffffffa009f20f>] ? i915_gem_execbuffer+0x350/0x350 [i915]
>[  131.802538]  [<ffffffffa001070a>] ? drm_ioctl+0x279/0x3bc [drm]
>[  131.802544]  [<ffffffff8105ca3d>] ? set_next_entity+0x14/0x37
>[  131.802574]  [<ffffffffa009f20f>] ? i915_gem_execbuffer+0x350/0x350 [i915]
>[  131.802590]  [<ffffffffa0010491>] ? drm_copy_field+0x50/0x50 [drm]
>[  131.802598]  [<ffffffff81122409>] ? do_vfs_ioctl+0x412/0x459
>[  131.802605]  [<ffffffff81129786>] ? __fdget+0x5/0x7
>[  131.802612]  [<ffffffff81122499>] ? SyS_ioctl+0x49/0x78
>[  131.802620]  [<ffffffff8179f792>] ? system_call_fastpath+0x12/0x17
>[  131.802625] ---[ end trace 26c26963615ce067 ]---
>[  131.802628] ------------[ cut here ]------------
>[  131.802663] WARNING: CPU: 3 PID: 4427 at include/linux/kref.h:47 intel_logical_ring_advance_and_submit+0xed/0x254 [i915]()
>[  131.802666] Modules linked in: ipv6 dm_mod snd_hda_codec_hdmi iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic serio_raw pcspkr snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm lpc_ich snd_timer mfd_core snd soundcore i2c_i801 battery ac acpi_cpufreq joydev i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea
>[  131.802706] CPU: 3 PID: 4427 Comm: gem_exec_nop Tainted: G        W      3.19.0-rc6_drm-intel-nightly_70438b_20150128+ #1026
>[  131.802710]  0000000000000000 0000000000000009 ffffffff81799da8 0000000000000000
>[  131.802717]  ffffffff8103bdec 0000000000000000 ffffffffa00ba9dd 0000000000000000
>[  131.802723]  ffff8801754518b8 ffff880074067d80 ffff880175450000 ffff8800028e4900
>[  131.802729] Call Trace:
>[  131.802736]  [<ffffffff81799da8>] ? dump_stack+0x40/0x50
>[  131.802743]  [<ffffffff8103bdec>] ? warn_slowpath_common+0x98/0xb0
>[  131.802779]  [<ffffffffa00ba9dd>] ? intel_logical_ring_advance_and_submit+0xed/0x254 [i915]
>[  131.802848]  [<ffffffffa00ba9dd>] ? intel_logical_ring_advance_and_submit+0xed/0x254 [i915]
>[  131.802894]  [<ffffffffa010c407>] ? logical_ring_wait_for_space+0xc2/0x150 [i915]
>[  131.802950]  [<ffffffffa00bae2a>] ? intel_logical_ring_begin+0xea/0x1ea [i915]
>[  131.802978]  [<ffffffff8110d587>] ? kmem_cache_free+0xf6/0x134
>[  131.803034]  [<ffffffffa00bb006>] ? gen8_emit_flush_render+0x3d/0xe1 [i915]
>[  131.803089]  [<ffffffffa00bb482>] ? intel_execlists_submission+0x230/0x34b [i915]
>[  131.803122]  [<ffffffffa009e347>] ? i915_gem_do_execbuffer.isra.12+0xca1/0xd88 [i915]
>[  131.803128]  [<ffffffff8105d25f>] ? check_preempt_wakeup+0x117/0x169
>[  131.803134]  [<ffffffff8105eafc>] ? enqueue_task_fair+0x441/0x88d
>[  131.803141]  [<ffffffff8110d964>] ? __kmalloc+0x66/0x151
>[  131.803170]  [<ffffffffa009f381>] ? i915_gem_execbuffer2+0x172/0x209 [i915]
>[  131.803199]  [<ffffffffa009f20f>] ? i915_gem_execbuffer+0x350/0x350 [i915]
>[  131.803216]  [<ffffffffa001070a>] ? drm_ioctl+0x279/0x3bc [drm]
>[  131.803222]  [<ffffffff8105ca3d>] ? set_next_entity+0x14/0x37
>[  131.803250]  [<ffffffffa009f20f>] ? i915_gem_execbuffer+0x350/0x350 [i915]
>[  131.803266]  [<ffffffffa0010491>] ? drm_copy_field+0x50/0x50 [drm]
>[  131.803273]  [<ffffffff81122409>] ? do_vfs_ioctl+0x412/0x459
>[  131.803281]  [<ffffffff81129786>] ? __fdget+0x5/0x7
>[  131.803288]  [<ffffffff81122499>] ? SyS_ioctl+0x49/0x78
>[  131.803296]  [<ffffffff8179f792>] ? system_call_fastpath+0x12/0x17
>[  131.803300] ---[ end trace 26c26963615ce068 ]---
>[  133.767250] [drm:cherryview_enable_rps] GT fifo had a previous error 1080000
>[  133.768868] [drm:cherryview_enable_rps] GPLL enabled? yes
>[  133.768874] [drm:cherryview_enable_rps] GPU status: 0x00281410
>[  133.768880] [drm:cherryview_enable_rps] current GPU freq: 200 MHz (20)
>[  133.768886] [drm:cherryview_enable_rps] setting GPU freq to 400 MHz (40)

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