[Bug 79612] [HSW Bisected]igt/kms_plane causes "WARNING: CPU: 3 PID: 4404 at drivers/gpu/drm/i915/intel_display.c:888 display_crc_ctl_write+0x563/0x75d [i915]()"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79612

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

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

--- Comment #10 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to comment #9)
> (In reply to comment #8)
> > This bug still able to reproduce on latest
> > -fixes(84b4e042c4707bd1bf05094a51111403d680dc39)
> 
> I presume this was just because the fix was committed to
> drm-intel-next-queued, and at the time fixes didn't have the commit yet.
> This is upstream now, please reopen if the problem persists.
> 
> commit a33d7105c4e905c895c41d8caf6bd8f85b2e3ce7
> Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> Date:   Fri Jun 6 08:22:08 2014 +0200
> 
>     drm/i915: Only wait one vblank when disabling crc if the pipe is on

The warning unable to reproduce on latest
-nightly(99f444f7f8308ca93d56a3802a3e1a8abcad7f57), but the test failed. I will
report a new bug for this failure.

[root at x-hsw24 tests]# ./kms_plane --run-subtest
plane-position-covered-pipe-B-plane-1
IGT-Version: 1.8-gd9d3f4b (x86_64) (Linux:
3.17.0-rc4_drm-intel-nightly_99f444_20140910+ x86_64)
Testing connector VGA-1 using pipe B plane 1
Test assertion failure function test_plane_position_with_output, file
kms_plane.c:197:
Failed assertion: igt_crc_equal(&test.reference_crc, &crc)
Subtest plane-position-covered-pipe-B-plane-1: FAIL (0.294s)
[root at x-hsw24 tests]# dmesg -r|egrep "<[1-4]>"|grep drm
[root at x-hsw24 tests]#

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