[Bug 63921] [snb] GTT mapping fails after GPU hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=63921

--- Comment #52 from Nicolas Hillegeer <nicolashillegeer at gmail.com> ---
(In reply to comment #51)
> (In reply to comment #49)
> > (In reply to comment #48)
> > > Created attachment 79420 [details] [review] [review] [review]
> > > Patch to get error state out on low/fragmented memory situations
> > 
> > Patch doesn't apply cleanly to 3.9.2 (error at the end of message). Do you
> > prefer if I try to backport or start using another kernel?
> 
> I have attached a proper patch to get error state out even if
> memory is fragmented, backported to 3.9.2.
> 
> Patch is also included in:
> http://cgit.freedesktop.org/~danvet/drm-intel/log/?h=drm-intel-next-queued
> 
> Nicolas, could you please try the patch so that we could get
> an error state for this bug. Thanks.

Mika, I had already more or less backported the patch to 3.9.3 (see the other
bug report: https://bugs.freedesktop.org/show_bug.cgi?id=63946). Now I'm having
difficulties getting it to crash without locking hard. Often it doesn't crash
but lowers its output frequency as I explain in that bug report (which is for
the same bug). I'm trying out on a lot of units todays so hopefully I strike
gold! I'll keep you guys posted. Thanks for the correct backport.

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