[Bug 70740] HiZ on SNB causes GPU hang with WebGL web app

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70740

--- Comment #5 from Xinkai Chen <yeled.nova at gmail.com> ---
Created attachment 89240
  --> https://bugs.freedesktop.org/attachment.cgi?id=89240&action=edit
intel_gpu_abrt.tar

sudo intel_gpu_abrt
No protocol specified
Can't open display :0
intel_gpu_abrt.tar has been created.

System environment:
-- chipset:
-- system architecture: x86_64
-- xf86-video-intel:
-- xserver: 1.14.4
-- mesa: 9.2.3
-- libdrm: 2.4.47
-- kernel: 3.12.0-1-ARCH
-- Linux distribution: Archlinux up-to-date
-- Machine or mobo model:
-- Display connector:

I searched bug with IPEHR number 0x7a000002, and I found this bug. The hang
happened during a Hearthstone game via wine, after I installed kernel 3.12 and
mesa 9.2.3 today.

This hang takes longer to recover, compared with bug #70151 to which I was also
a victim. The screen doesn't simply freeze during the hanging, but rather it
looks like a 30-second powerpoint slide of corrupted images.

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