[Bug 81160] [BYT Regression]igt/kms_flip some subcases cause "WARNING: CPU: 0 PID: 3733 at drivers/gpu/drm/i915/intel_display.c:1231 __intel_set_mode+0xc59/0x1275 [i915]()"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81160

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |VERIFIED

--- Comment #4 from Guo Jinxian <jinxianx.guo at intel.com> ---
Here has new demsg error, which tracked by bug 84074, close this one. 

root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest bcs-flip-vs-dpms-interruptible
IGT-Version: 1.8-g32a0308 (x86_64) (Linux:
3.17.0-rc7_drm-intel-nightly_4cf4ff_20140930+ x86_64)
Using monotonic timestamps
Beginning bcs-flip-vs-dpms-interruptible on crtc 8, connector 28
  1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000
...
bcs-flip-vs-dpms-interruptible on crtc 8, connector 28: PASSED

Beginning bcs-flip-vs-dpms-interruptible on crtc 13, connector 28
  1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000
..
bcs-flip-vs-dpms-interruptible on crtc 13, connector 28: PASSED

Beginning bcs-flip-vs-dpms-interruptible on crtc 8, connector 16
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
....
bcs-flip-vs-dpms-interruptible on crtc 8, connector 16: PASSED

Beginning bcs-flip-vs-dpms-interruptible on crtc 13, connector 16
  1024x768 60 1024 1048 1184 1344 768 771 777 806 0xa 0x40 65000
....
bcs-flip-vs-dpms-interruptible on crtc 13, connector 16: PASSED

Subtest bcs-flip-vs-dpms-interruptible: SUCCESS (83.853s)
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm                 <3>[  131.434410]
[drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting
<4>[  132.485192] WARNING: CPU: 0 PID: 4390 at
drivers/gpu/drm/i915/intel_display.c:1751 valleyview_crtc_enable+0x9e4/0xaee
[i915]()
<4>[  132.485199] Modules linked in: dm_mod snd_hda_codec_hdmi iTCO_wdt
iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic pcspkr
snd_hda_intel snd_hda_controller i2c_i801 snd_hda_codec r8169 snd_hwdep lpc_ich
snd_pcm mfd_core snd_timer 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 cfbfillrect cfbimgblt cfbcopyarea
<4>[  132.485240] CPU: 0 PID: 4390 Comm: kms_flip Not tainted
3.17.0-rc7_drm-intel-nightly_4cf4ff_20140930+ #74
<4>[  132.485470]  [<ffffffffa0017fc5>] ?
drm_mode_set_config_internal+0x48/0xbd [drm]
<4>[  132.485483]  [<ffffffffa001b9ee>] ? drm_mode_setcrtc+0x3e6/0x48b [drm]
<4>[  132.485495]  [<ffffffffa0010740>] ? drm_ioctl+0x279/0x3bc [drm]
<4>[  132.485515]  [<ffffffffa001b608>] ? drm_mode_setplane+0x1ce/0x1ce [drm]
<3>[  133.929536] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe B
underrun
<3>[  133.929543] [drm:valleyview_pipestat_irq_handler] *ERROR* pipe B underrun
<3>[  139.534875] [drm:intel_dp_complete_link_train] *ERROR* failed to train
DP, aborting
<3>[  148.044793] [drm:intel_dp_complete_link_train] *ERROR* failed to train
DP, aborting
<4>[  149.095691] WARNING: CPU: 1 PID: 4390 at
drivers/gpu/drm/i915/intel_display.c:1751 valleyview_crtc_enable+0x9e4/0xaee
[i915]()
<4>[  149.095697] Modules linked in: dm_mod snd_hda_codec_hdmi iTCO_wdt
iTCO_vendor_support snd_hda_codec_conexant snd_hda_codec_generic pcspkr
snd_hda_intel snd_hda_controller i2c_i801 snd_hda_codec r8169 snd_hwdep lpc_ich
snd_pcm mfd_core snd_timer 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 cfbfillrect cfbimgblt cfbcopyarea
<4>[  149.095739] CPU: 1 PID: 4390 Comm: kms_flip Tainted: G        W     
3.17.0-rc7_drm-intel-nightly_4cf4ff_20140930+ #74
<4>[  149.095956]  [<ffffffffa001c587>] ?
drm_mode_obj_set_property_ioctl+0x1e4/0x276 [drm]
<4>[  149.095969]  [<ffffffffa001c645>] ?
drm_mode_connector_property_set_ioctl+0x2c/0x31 [drm]
<4>[  149.095981]  [<ffffffffa0010740>] ? drm_ioctl+0x279/0x3bc [drm]
<4>[  149.096001]  [<ffffffffa001c619>] ?
drm_mode_obj_set_property_ioctl+0x276/0x276 [drm]

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