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<body><span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - [TGL] media VME encoding GPU hang w/o i915 error state captured"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112377">bug 112377</a>
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<td>eero.t.tamminen@intel.com
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [TGL] media VME encoding GPU hang w/o i915 error state captured"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112377#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [TGL] media VME encoding GPU hang w/o i915 error state captured"
href="https://bugs.freedesktop.org/show_bug.cgi?id=112377">bug 112377</a>
from <span class="vcard"><a class="email" href="mailto:eero.t.tamminen@intel.com" title="Eero Tamminen <eero.t.tamminen@intel.com>"> <span class="fn">Eero Tamminen</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=112377#c3">comment #3</a>)
<span class="quote">> Forced preemption occurs when a lower priority batch does not yield the GPU
> to a higher preemption request [which is a denial-of-service from one and a
> quality-of-service guarantee for the other], over a certain timeout.</span >
What is higher pre-emption request in this case?
(Maybe dmesg output could identify also the higher priority process?)
(In reply to Chris Wilson from <a href="show_bug.cgi?id=112377#c1">comment #1</a>)
<span class="quote">> It's a forced preemption; reset from softirq context prohibits error capture
> and would further compromise the QoS of the more important task.</span >
Is there some option to enable error capture also in that case?
(Otherwise debugging those issues would become really hard...)</pre>
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