Bug 36410

Created attachment 45840 [details]
Xorg.0.log

Created attachment 45841 [details]
Photo for this screen mess

It also exists when running glbenchmark.

(In reply to comment #0)
> System Environment:
> --------------------------
> Platform:        SNB
> Libdrm:          (master)2.4.25
> Mesa:            (7.10)1f8c5611a2575e7c660fd10d322cebdafa41e29f
> Xserver:         (server-1.10-branch)xorg-server-1.10.1
> Xf86_video_intel:(master)2.15.0-3-gc9fb69cb2502917dfb2828c90802de7766072899
> Cairo:           (master)b377380b7a5fe0982d057975cd87f6b652d3b0ff
> Libva:           (master)bcb8dc4ab8a5da0a815211aa54aa383853fd92c2
> Kernel:(drm-intel-fixes) 5c72d064f7ead1126bed6faab0c2bfb7418036e2
> 
> Bug detailed description:
> -------------------------
> Screen mess when running 3DMMES/taiji.It contains a series of demoes when
> runnig taiji.Screen mess only exists on the first demo(taiji.fms),but it works
> fine after demoes(eg.hover.fms,feature_tests.fms).Pls see attached photo.
> Especifically:
> 1.It exists on Sugarbay and HuronRiver.
> 2.It's mesa regression.It works fine on master branch.

That's not what "regression" means.  If it used to work on 7.10 but fails on 7.10 now, it would be a regression.  This is just a bug that has been fixed on master and the fix isn't in 7.10 yet.

Could you bisect to the commit (or commits) in master that fix it?

In Mesa's master branch,by bisected shows that:
9a21bc640188e4078075b9f8e6701853a4f0bbe4 bad
9d60a7ce08a67eb8b79c60f829d090ba4a37ed7e good
The commit 9d60a7c fixed it.

commit 9d60a7ce08a67eb8b79c60f829d090ba4a37ed7e
Author: Kenneth Graunke <kenneth@whitecape.org>
Date:   Tue Mar 29 05:49:40 2011 -0700

    i965: Resolve implied moves in brw_dp_READ_4_vs_relative.

    Fixes piglit test glsl-vs-arrays-3 on Sandybridge, as well as garbage
    rendering in 3DMarkMobileES 2.0's Taiji demo and GLBenchmark 2.0's
    Egypt and PRO demos.

    NOTE: This a candidate for stable release branches.  It depends on
    commit 9a21bc640188e4078075b9f8e6701853a4f0bbe4

Ken, can you cherry pick it?

It works fine with 7.10-snb-vs-threads)0144f94c6b85b61f25dd8906041555e52c7370e1.

(In reply to comment #5)
> In Mesa's master branch,by bisected shows that:
> 9a21bc640188e4078075b9f8e6701853a4f0bbe4 bad
> 9d60a7ce08a67eb8b79c60f829d090ba4a37ed7e good
> The commit 9d60a7c fixed it.
> 
> commit 9d60a7ce08a67eb8b79c60f829d090ba4a37ed7e
> Author: Kenneth Graunke <kenneth@whitecape.org>
> Date:   Tue Mar 29 05:49:40 2011 -0700
> 
>     i965: Resolve implied moves in brw_dp_READ_4_vs_relative.
> 
>     Fixes piglit test glsl-vs-arrays-3 on Sandybridge, as well as garbage
>     rendering in 3DMarkMobileES 2.0's Taiji demo and GLBenchmark 2.0's
>     Egypt and PRO demos.
> 
>     NOTE: This a candidate for stable release branches.  It depends on
>     commit 9a21bc640188e4078075b9f8e6701853a4f0bbe4

Great!  This was one of the commits in my 7.10-snb-vs-threads branch.  I merged that branch to 7.10 just today.  On 7.10, this is commit 0f02b4253d5b3a3bbdfc72711bb9a7c0781061f4.

Verified with commit (7.10)0f02b4253d5b3a3bbdfc72711bb9a7c0781061f4, it works fine.