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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/HSW ULT]system hang when run nightly testing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68171#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/HSW ULT]system hang when run nightly testing"
href="https://bugs.freedesktop.org/show_bug.cgi?id=68171">bug 68171</a>
from <span class="vcard"><a class="email" href="mailto:ben@bwidawsk.net" title="Ben Widawsky <ben@bwidawsk.net>"> <span class="fn">Ben Widawsky</span></a>
</span></b>
<pre>This one doesn't look the same to me as the one invoked by gem_evict_everything
(and Ken just hit it too fwiw).
The cause is memory pressure and being forced to hit the bound_list while doing
execbuf. It's a similar cause to the other one, but from what I can gather this
one fails while we're trying to unmap the gtt userspace mappings. Since I do
not know much about i915_gem_release_mmap, it might take me a while to come up
with some ideas.
It is possible this is another pre-existing bug that's just uncovered by VMA.
Is that SHA the use VMAs in execbuffer commit?</pre>
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