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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#c29">Comment # 29</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>4.9 has been the most stable DRM stack, since 4.4.92 can also be made to
hang the GPU with the workload, as I noticed running it for hours today.
Haven't seen a single hang with 4.9 yet. Too bad 4.4 will be Extended-LTS
while 4.9 will be EOL soon. The concurrent use of VAAPI seems to trip
up things eventually with kernels <4.9 and >4.9 but not 4.9.</pre>
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