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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [v4.13 ARCH] GPU HANG: DMAR: DRHD: handling fault status reg 3 (arch reverted the use of intel_iommu=igfx_off)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103076#c27">Comment # 27</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [v4.13 ARCH] GPU HANG: DMAR: DRHD: handling fault status reg 3 (arch reverted the use of intel_iommu=igfx_off)"
href="https://bugs.freedesktop.org/show_bug.cgi?id=103076">bug 103076</a>
from <span class="vcard"><a class="email" href="mailto:carstenmattner@gmail.com" title="Carsten Mattner <carstenmattner@gmail.com>"> <span class="fn">Carsten Mattner</span></a>
</span></b>
<pre>(In reply to Carsten Mattner from <a href="show_bug.cgi?id=103076#c25">comment #25</a>)
<span class="quote">> Been trying to provoke it under two different Wayland compositors for
> several hours (same workload as yesterday), and it seems much harder to
> trigger there (same drm-tip kernel).</span >
After Wayland taking too long to trigger, exited and entered Xorg.
Didn't take long before I hit
workqueue: PF_MEMALLOC task 41(khugepaged) is flushing !WQ_MEM_RECLAIM
i915-userptr-release: (NULL)
I suppose if I continue this session, it will repeat last nights events
and finally RCS0 hang and reset the GPU. This looks like a pattern to me.</pre>
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