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<body><span class="vcard"><a class="email" href="mailto:vedran@miletic.net" title="Vedran Miletić <vedran@miletic.net>"> <span class="fn">Vedran Miletić</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini when radeon.lockup_timeout is enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99312">bug 99312</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Summary</td>
<td>Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini
</td>
<td>Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini when radeon.lockup_timeout is enabled
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini when radeon.lockup_timeout is enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99312#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Long-running OpenCL kernels cause ring stalls and GPU lockups on Kabini when radeon.lockup_timeout is enabled"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99312">bug 99312</a>
from <span class="vcard"><a class="email" href="mailto:vedran@miletic.net" title="Vedran Miletić <vedran@miletic.net>"> <span class="fn">Vedran Miletić</span></a>
</span></b>
<pre>(In reply to John Bridgman from <a href="show_bug.cgi?id=99312#c1">comment #1</a>)
<span class="quote">> If you have not already done so, try disabling the watchdog timer:
>
>
> MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (default 10000 =
> 10 seconds, 0 = disable)");
> module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444);
> </span >
Yup, that works around the problem.
<span class="quote">> As part of HSA/ROC development we dropped the priority of compute work
> relative to graphics which improved interactivity and *almost* eliminated
> timeouts without having to disable the timer - when I get back in the
> office I'll dig up the changes. In the meantime, I think disabling the timer
> will do what you need although you will still have sluggish graphics while
> long-running kernels are active.
> </span >
Eager to hear the details.</pre>
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