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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#c21">Comment # 21</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 Mark Janes from <a href="show_bug.cgi?id=108456#c20">comment #20</a>)
<span class="quote">> I ran vulkancts on this system, and found that found that it encountered GPU
> hang on at least 25% of vulkancts runs. </span >
The same hard-hang occurs with drm-tip. Unfortunately, I can't help verify
Chris's patches until there is a working drm-tip kernel.</pre>
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