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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - userptr deadlock in Vulkan CTS: mmu_notifier vs workers vs struct_mutex"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108456#c19">Comment # 19</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - userptr deadlock in Vulkan CTS: mmu_notifier vs workers vs struct_mutex"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108456">bug 108456</a>
from <span class="vcard"><a class="email" href="mailto:mark.a.janes@intel.com" title="Mark Janes <mark.a.janes@intel.com>"> <span class="fn">Mark Janes</span></a>
</span></b>
<pre>(In reply to Francesco Balestrieri from <a href="show_bug.cgi?id=108456#c18">comment #18</a>)
<span class="quote">> There is a proposed fix (still under debate) here:
>
> <a href="https://patchwork.freedesktop.org/series/52209/">https://patchwork.freedesktop.org/series/52209/</a>
>
> Meanwhile, this patch that was merged a few weeks ago should have provided a
> workaround:
>
> <a href="https://patchwork.freedesktop.org/patch/258901/">https://patchwork.freedesktop.org/patch/258901/</a>
>
> Did it help?</span >
Mesa i965 CI tests with upstream kernels, to ensure stability for the
developers testing Mesa patches.
I built a kernel with these patches, and deployed it on a subset of systems in
Mesa CI. Due to the intermittent nature of the bug, it will be days before we
have the data to say it helped.</pre>
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