Re: BUG: unable to handle kernel NULL pointer dereference, i915_gem_object_move_to_active

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On Sat, May 08, 2010 at 04:32:13PM +0200, Nils Radtke wrote:
> This report might actually be related (in fact, same notebook):
> 
>   http://permalink.gmane.org/gmane.linux.kernel/981318

May be or may not be related. Given that your problem (and the bz entry
I've linked to) are clear kernel bugs, hw (besides the fact that both are
using intel graphics) shouldn't really matter.

> Daniel, I'm not sure I got what you intended to tell me w/:
> > There's a test patch in that bz entry (the one that adds two BUG_ONs).
> > If you're hitting these, is rather likely that it's the same bug.
> bz entry?
> I can't tell whether it's this exact bug. And I'm unfortunately a bit limited
> in using the notebook to test and crash it, it's not mine and therefore not always 
> there to play with, if you intended me to apply some patch and test whether the 
> notebook will crash at the BUG_ON()s.

I've link the bz entry in my original reply. Anyway, here it is again:

https://bugzilla.kernel.org/show_bug.cgi?id=15664

There's a kernel patch there (the one adding two BUG_ONs, the others are
crap). I've you could apply this and test, that would be great - if you
hit one of these BUG_ONs you've got the same issue with very high
probability. If this is the case, please add yourself to the cc list of
this bug with a "me too" containing some details 'bout your hw + links to
all other preexisting bugs/discussion concerning your problem.

Thanks, Daniel
-- 
Daniel Vetter
Mail: daniel@xxxxxxxx
Mobile: +41 (0)79 365 57 48
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