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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [v4.10] GPU HANG: ecode 6:0:0xbd69ffff, in compiz [2609], reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99671#c28">Comment # 28</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [v4.10] GPU HANG: ecode 6:0:0xbd69ffff, in compiz [2609], reason: Ring hung, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99671">bug 99671</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to Josh Holland from <a href="show_bug.cgi?id=99671#c25">comment #25</a>)
<span class="quote">> And another hang. This one I got dmesg and GPU dump from; it seemed more
> like the hangs I was getting on the Ubuntu 4.4 kernels (where everything
> apart from the cursor freezes for a minute, but then starts working fine
> again), rather than the 4.10 ones I've been building, where the entire UI
> (including cursor) freezes and doesn't seem to recover. Presumably your
> commit fixed something...</span >
Yup, we are right back to the original pattern of hangs. But now I know it
passed internal sanity checks before doing so. Puzzling.
I need to think about how this could even arise, in the meantime could you
please try running with i915.semaphores=0 on the kernel command line and see if
that makes a difference?</pre>
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