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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SNB] WARNING: CPU: 1 PID: 1630 at drivers/gpu/drm/i915/intel_uncore.c:224 __gen6_gt_wait_for_fifo+0xb5/0xc0 [i915]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102426#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [SNB] WARNING: CPU: 1 PID: 1630 at drivers/gpu/drm/i915/intel_uncore.c:224 __gen6_gt_wait_for_fifo+0xb5/0xc0 [i915]"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102426">bug 102426</a>
from <span class="vcard"><a class="email" href="mailto:samuel.rakitnican@gmail.com" title="samuel.rakitnican@gmail.com">samuel.rakitnican@gmail.com</a>
</span></b>
<pre>I think this was solved by disabling semaphores:
<a class="bz_bug_link
bz_status_CLOSED bz_closed"
title="CLOSED WONTFIX - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)"
href="show_bug.cgi?id=54226#c264">https://bugs.freedesktop.org/show_bug.cgi?id=54226#c264</a>
I can't see the issue anymore on newer kernels.
# uname -r
4.15.12-1.el7.elrepo.x86_64</pre>
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