Comment 162 for bug 541511

(In reply to comment #110)
> Created an attachment (id=35065) [details]
> only call put_pages when gtt_space != NULL
>
> Ok, this might be the first real stab at that dreaded put_pages BUG. Everyone
> who's hitting this problem, please apply this patch on top of whatever kernel
> most easily reproduces the problem.

I've been hitting this bug at least once the last couple of days (my system crashed a couple of times, and only once I was able to extract logs). With this patch applied, I haven't seen this bug resurface so far.

However, my system crashes when starting doomsday or warzone2100 (both OpenGL games). I hadn't noticed this before, and is probably unrelated to this coherency bug. Where should I file this bug report? Mesa? Dmesg says:

[drm:i915_gem_do_execbuffer] *ERROR* Invalid object handle 48 at index 0

X log says:

[ 5132.404] (EE) intel(0): Failed to submit batch buffer, expect rendering corruption or even a frozen display: Bad file descriptor.