[Bug 89100] [SKL]kms_universal_plane causes system hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89100

Ding Heng <hengx.ding at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW

--- Comment #7 from Ding Heng <hengx.ding at intel.com> ---
(In reply to Matt Roper from comment #6)
> (In reply to wendy.wang from comment #4)
> Re-test with latest
> drm-intel-nightly branch kernel:
> Linux x-skly03
> 4.0.0-rc2_drm-intel-nightly_c2f6e5_20150307+ #238 SMP Sat Mar
> 7 09:01:15
> EST 2015 x86_64 x86_64 x86_64 GNU/Linux
> 
> IGT case kms_universal_plane
> will not cause system hang, but has call trace.
> (dmesg log file attached.)
> Can you test with the latest drm-intel-nightly, plus the patch from
> http://patchwork.freedesktop.org/patch/44302/ and see if it resolves the
> issue?

Call trace issue still exist with this patch, maybe will not hapen first time
you run this case after boot, maybe twice or more will reproduce this issue.

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