[Bug 91244] [gen4] GPU crashed in chrome

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Jul 14 11:15:12 PDT 2015


--- Comment #4 from Kenneth Graunke <kenneth at whitecape.org> ---
What exact version of Mesa do you have?

Looking at your error state, it appears that we're hanging on a CONSTANT_BUFFER
packet while a WM_STATE is bound with "PS Uses Source Depth".  I didn't check
CC_STATE to be sure, but this looks to be the exact known hang.

I see no workarounds for the issue in your command stream.  Mesa 10.5.3+ would
try to insert an MI_FLUSH, but apparently the conditions were not triggered to
make that happen.  I see no 3DSTATE_GLOBAL_DEPTH_CLAMP_OFFSET commands either
(save the one at the top), so you're clearly not running Mesa 10.6.x.

Mesa 10.6.x contains what I believe to be the actual correct fix for this bug
(commit f55ded764ce60f87463e33bfa3a32e2c44715581).  Please try that.

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