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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [NVE6] complete system freeze, PGRAPH engine fault on channel 2, SCHED_ERROR [ CTXSW_TIMEOUT ]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93629#c20">Comment # 20</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [NVE6] complete system freeze, PGRAPH engine fault on channel 2, SCHED_ERROR [ CTXSW_TIMEOUT ]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93629">bug 93629</a>
from <span class="vcard"><a class="email" href="mailto:gnurou@gmail.com" title="Alexandre Courbot <gnurou@gmail.com>"> <span class="fn">Alexandre Courbot</span></a>
</span></b>
<pre>Roy, NVE6 is rock-stable on my end using your patch. Feel free to add my
Tested-by: Alexandre Courbot <<a href="mailto:acourbot@nvidia.com">acourbot@nvidia.com</a>></pre>
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [NVE6] complete system freeze, PGRAPH engine fault on channel 2, SCHED_ERROR [ CTXSW_TIMEOUT ]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93629#c19">Comment # 19</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [NVE6] complete system freeze, PGRAPH engine fault on channel 2, SCHED_ERROR [ CTXSW_TIMEOUT ]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=93629">bug 93629</a>
from <span class="vcard"><a class="email" href="mailto:rspliet@eclipso.eu" title="Roy <rspliet@eclipso.eu>"> <span class="fn">Roy</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=123609" name="attach_123609" title="Race condition fix for nouveau firmware">attachment 123609</a> <a href="attachment.cgi?id=123609&action=edit" title="Race condition fix for nouveau firmware">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=93629&attachment=123609'>[review]</a>
Race condition fix for nouveau firmware
For anyone who experiences random hangs using the nouveau firmware and have
spotted "SCHED_ERROR [ CTXSW_TIMEOUT ]" in the logs, please build a kernel with
the attached patch and run using the nouveau firmware. Minimum kernel required
is 4.6.
I've tested this on one machine of my own and have a strong indication that
this improves the situation, but unfortunately it is difficult to distinguish
random infrequent hangs from no hangs.</pre>
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