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<body><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> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][DRMTIP] igt@gem_eio@wait-wedge-1us - dmesg-warn - GEM_BUG_ON(!intel_engine_is_idle(engine))"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108133">bug 108133</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][DRMTIP] igt@gem_eio@wait-wedge-1us - dmesg-warn - GEM_BUG_ON(!intel_engine_is_idle(engine))"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108133#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][DRMTIP] igt@gem_eio@wait-wedge-1us - dmesg-warn - GEM_BUG_ON(!intel_engine_is_idle(engine))"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108133">bug 108133</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>I am not convinced, but
commit 88a83f3c2d7a87ce7c9c4171dec8e2fb48070288
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Thu Oct 4 09:21:19 2018 +0100
drm/i915: Only reset seqno if actually idle
Before we can reset the seqno, we have to be sure the engines are idle.
In debugfs/i915_drop_caches_set, we do wait_for_idle but allow ourselves
to be interrupted. We should only proceed to reset the seqno then if we
were not interrupted, and so also avoid overwriting the error status.
References: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI][DRMTIP] igt@gem_eio@wait-wedge-1us - dmesg-warn - GEM_BUG_ON(!intel_engine_is_idle(engine))"
href="show_bug.cgi?id=108133">https://bugs.freedesktop.org/show_bug.cgi?id=108133</a>
Fixes: 6b048706f407 ("drm/i915: Forcibly flush unwanted requests in
drop-caches")
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Cc: Joonas Lahtinen <<a href="mailto:joonas.lahtinen@linux.intel.com">joonas.lahtinen@linux.intel.com</a>>
Reviewed-by: Joonas Lahtinen <<a href="mailto:joonas.lahtinen@linux.intel.com">joonas.lahtinen@linux.intel.com</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20181004082119.24970-1-chris@chris-wilson.co.uk">https://patchwork.freedesktop.org/patch/msgid/20181004082119.24970-1-chris@chris-wilson.co.uk</a>
may have an effect. Otherwise this bug is too weird for me.</pre>
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