[Bug 108820] [SKL] GPU hangs in benchmarks using compute shaders with drm-tip v4.20-rc kernels

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Jan 3 10:52:23 UTC 2019


--- Comment #7 from Eero Tamminen <eero.t.tamminen at intel.com> ---
Created attachment 142952
  --> https://bugs.freedesktop.org/attachment.cgi?id=142952&action=edit
CarChase GPU hang

I'm now pretty sure it's drm-tip kernel issue.  It went away after v4.20-rc4
kernel version, at end of November, but still happens when using our last v4.19
drm-tip build (currently used in our Mesa tracking).

It seems to happen more frequently with SKL GT3e than GT2.  Attached is error
state for GfxBench CarChase hang with Mesa (8c93ef5de98a9) from couple of days

I've now updated our Mesa tracking to use v4.20 drm-tip build, I'll tell next
week whether that helped (as expected).

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