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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 - [BAT] igt@drv_selftest@live_hangcheck - incomplete - kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:1040"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107207">bug 107207</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;">Resolution</td>
<td>---
</td>
<td>FIXED
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr></table>
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<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BAT] igt@drv_selftest@live_hangcheck - incomplete - kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:1040"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107207#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BAT] igt@drv_selftest@live_hangcheck - incomplete - kernel BUG at drivers/gpu/drm/i915/intel_lrc.c:1040"
href="https://bugs.freedesktop.org/show_bug.cgi?id=107207">bug 107207</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>Hmm, we have
commit 3970c65c2b47c450f917bc8a29c5849563a95dfe
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Mon Jul 23 15:53:35 2018 +0100
drm/i915: Skip repeated calls to i915_gem_set_wedged()
If we already wedged, i915_gem_set_wedged() becomes a complicated no-op.
References: <a class="bz_bug_link
bz_status_CLOSED bz_closed"
title="CLOSED FIXED - [CI][BAT] igt@drv_selftest@live_hangcheck - dmesg-fail - GEM_BUG_ON(!execlists_is_active(execlists, 0))"
href="show_bug.cgi?id=107343">https://bugs.freedesktop.org/show_bug.cgi?id=107343</a>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Reviewed-by: Rodrigo Vivi <<a href="mailto:rodrigo.vivi@intel.com">rodrigo.vivi@intel.com</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20180723145335.24579-1-c">https://patchwork.freedesktop.org/patch/msgid/20180723145335.24579-1-c</a>
<a href="mailto:hris@chris-wilson.co.uk">hris@chris-wilson.co.uk</a>
+
commit f1a498fa549e8e86895cda37e3fca867aae955b7
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Mon Jul 16 09:03:30 2018 +0100
drm/i915/execlists: Disable submission tasklet upon wedging
If we declare the driver wedged before the GPU truly is, then we may see
the GPU complete some CS events following our cancellation. This leaves
us quite confused as we deleted all the bookkeeping and thus complain
about the inconsistent state.
We can just ignore the remaining events and let the GPU idle by not
feeding it, and so avoid trying to racily overwrite shared state. We
rely on there being a full GPU reset before unwedging, giving us the
opportunity to reset the shared state.
Bugzilla: <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [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>
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Reviewed-by: Tvrtko Ursulin <<a href="mailto:tvrtko.ursulin@intel.com">tvrtko.ursulin@intel.com</a>>
Link:
<a href="https://patchwork.freedesktop.org/patch/msgid/20180716080332.32283-4-c">https://patchwork.freedesktop.org/patch/msgid/20180716080332.32283-4-c</a>
<a href="mailto:hris@chris-wilson.co.uk">hris@chris-wilson.co.uk</a>
I think accounts for it.</pre>
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