[Bug 72508] [SNB] Glxgears frozen under gnome-session in stress test with Q4 release

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=72508

--- Comment #10 from zhoujian <jianx.zhou at intel.com> ---
(In reply to comment #9)
> Bisect fail, you fell down the rabbit hole of chasing a different bug. To
> confirm yet again,you do not see the bug with the current ddx?
In this stress test,glxgears loop running 100 times as a round.
On 2013Q4,the frame of a glxgears would frozed when running to 30~50 time(only
one round),but after a few seconds, then glxgears would work well again.
     Eerros in demsg:"[65598.315187] [drm:i915_set_reset_status] *ERROR* render
ring hung inside bo(0x55e6000 ctx 1) at 0x55e6220"
On 2013Q2,it's OK (I have tried 4 rounds,all passed).

I'm sorry,the problem doesn't seem caused by xf86. 
I find that the probability of reproduing the bug is quit lower with old
driver.
It's difficult to find out which commpent.

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