[Bug 82800] [BYT Regession]igt/kms_flip some subcases cause "WARNING: CPU: 0 PID: 6346 at drivers/gpu/drm/i915/intel_dp.c:3263 intel_dp_complete_link_train+0x100/0x27f [i915]()"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82800

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #4 from Guo Jinxian <jinxianx.guo at intel.com> ---
The failure unable to reproduce on latest
nightly(ab7f1ab9c4d1c8af46517d60e54eeda9d8673f6a)

root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest 2x-absolute-wf_vblank
IGT-Version: 1.8-g137877f (x86_64) (Linux:
3.17.0-rc5_drm-intel-nightly_ab7f1a_20140917+ x86_64)
Using monotonic timestamps
Beginning 2x-absolute-wf_vblank on crtc 8:13, connector 28:16
  1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000
  1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000
.....................................................................................................................................................................................
2x-absolute-wf_vblank on crtc 8:13, connector 28:16: PASSED

Subtest 2x-absolute-wf_vblank: SUCCESS (36.076s)
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest 2x-single-buffer-flip-vs-dpms-off-vs-modeset-interruptible
IGT-Version: 1.8-g137877f (x86_64) (Linux:
3.17.0-rc5_drm-intel-nightly_ab7f1a_20140917+ x86_64)
Using monotonic timestamps
Beginning 2x-single-buffer-flip-vs-dpms-off-vs-modeset-interruptible on crtc
8:13, connector 28:16
  1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000
  1366x768 60 1366 1404 1426 1482 768 771 777 798 0xa 0x48 71000
..
2x-single-buffer-flip-vs-dpms-off-vs-modeset-interruptible on crtc 8:13,
connector 28:16: PASSED

Subtest 2x-single-buffer-flip-vs-dpms-off-vs-modeset-interruptible: SUCCESS
(11.230s)
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm                
root at x-bytm02:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests#

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