[Bug 82683] Segfault in glBufferSubData

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82683

--- Comment #8 from Tapani Pälli <lemody at gmail.com> ---
I know this is not proper answer to the question but ENOMEM is what we get from
the kernel driver so that's how we should treat it. We run out of the memory
simultaneously mappable by GTT, I don't understand why it would not happen in
the case 2.

I've been reading through these to understand more:

http://blog.ffwll.ch/2012/10/i915gem-crashcourse.html
https://bwidawsk.net/blog/index.php/2014/06/the-global-gtt-part-1/

maybe intel-gpu-tools has some tool to catch this.

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