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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [NV94] X hangs, logs show kernel: nouveau E[ PFIFO][0000:01:00.0] still angry after 101 spins, halt followed by an X trace"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87244#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [NV94] X hangs, logs show kernel: nouveau E[ PFIFO][0000:01:00.0] still angry after 101 spins, halt followed by an X trace"
href="https://bugs.freedesktop.org/show_bug.cgi?id=87244">bug 87244</a>
from <span class="vcard"><a class="email" href="mailto:zcalusic@bitsync.net" title="Zlatko Calusic <zcalusic@bitsync.net>"> <span class="fn">Zlatko Calusic</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=111369" name="attach_111369" title="Revert-drm-nouveau-fifo-g84-ack-non-stall-interrupt">attachment 111369</a> <a href="attachment.cgi?id=111369&action=edit" title="Revert-drm-nouveau-fifo-g84-ack-non-stall-interrupt">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=87244&attachment=111369'>[review]</a>
Revert-drm-nouveau-fifo-g84-ack-non-stall-interrupt
Also G94 here, and the same bug. It works for a while then GPU locks up with
"still angry after 101 spins". But, I bisected and eventually 19a10828814aa
commit (drm/nouveau/fifo/g84-: ack non-stall interrupt before handling it) came
out as culprit. It's the last nouveau commit before 3.18 was releases.
If you can compile your own kernel, I'm attaching the patch that reverses that
commit. It fixes the issue for me completely, no more lockups.</pre>
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