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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] igt@drv_selftest@live_hangcheck - igt_reset_engines failed with error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106560">bug 106560</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>REOPENED
</td>
<td>RESOLVED
</td>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr></table>
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<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI] igt@drv_selftest@live_hangcheck - igt_reset_engines failed with error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106560#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI] igt@drv_selftest@live_hangcheck - igt_reset_engines failed with error"
href="https://bugs.freedesktop.org/show_bug.cgi?id=106560">bug 106560</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>commit a99b32a6fff7e482a267c72e565c8c410ce793d7 (HEAD -> drm-intel-next-queued,
drm-intel/drm-intel-next-queued)
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Tue Aug 14 18:18:57 2018 +0100
drm/i915: Clear stop-engine for a pardoned reset
If we pardon a per-engine reset, we may leave the STOP_RING bit asserted
in RING_MI_MODE resulting in the engine hanging. Unconditionally clear
it on the per-engine exit path as we know that either we skipped the
reset and so need the cancellation, or the reset was successful and the
cancellation is a no-op, or there was an error and we will follow up
with a full-reset or wedging (both of which will stop the engines again
as required).
Bugzilla: <a class="bz_bug_link
bz_status_NEW "
title="NEW - [CI][CFL] Occasional hang in drv_selftest@live_workarounds"
href="show_bug.cgi?id=107188">https://bugs.freedesktop.org/show_bug.cgi?id=107188</a>
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [CI] igt@drv_selftest@live_hangcheck - igt_reset_engines failed with error"
href="show_bug.cgi?id=106560">https://bugs.freedesktop.org/show_bug.cgi?id=106560</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Cc: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
Reviewed-by: Mika Kuoppala <<a href="mailto:mika.kuoppala@linux.intel.com">mika.kuoppala@linux.intel.com</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20180814171857.24673-1-chris@chris-wilson.co.uk">https://patchwork.freedesktop.org/patch/msgid/20180814171857.24673-1-chris@chris-wilson.co.uk</a>
Please note that the CI run for this patch indicated we have yet another cause
for hangs here. When that is detected please do file a fresh bug so we don't
have the debug logs confused.</pre>
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