[Bug 94927] [drm] GPU HANG: ecode 9:0:0x85dffffb, in compiz [1755], reason: Ring hung, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94927

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to john.stultz from comment #7)
> I did try the latest nightly, as it looks like it has some recent fixes for
> skylake gpu hangs.
> 
> http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2016-04-22-
> wily/
> 
> But I still saw the blocky graphic noise after logging in, and then it hung.
> I rebooted and hopped over to the VT console after logging it and there it
> hit some "general protection fault: 0000 [#1] SMP" errors that seem to
> trigger from generic_permission().

GPFs are a far more serious problem. Did anything make it to the syslog, or can
you grab a photograph of whatever error remains on screen?

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