[Bug 108820] [SKL] GPU hangs in all benchmarks using compute shaders with drm-tip v4.19+ kernel

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Nov 28 14:41:51 UTC 2018


https://bugs.freedesktop.org/show_bug.cgi?id=108820

Eero Tamminen <eero.t.tamminen at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[SKL] GPU hangs in all      |[SKL] GPU hangs in all
                   |benchmarks using compute    |benchmarks using compute
                   |shaders with drm-tip v4.19  |shaders with drm-tip v4.19+
                   |kernel                      |kernel

--- Comment #2 from Eero Tamminen <eero.t.tamminen at intel.com> ---
(In reply to Eero Tamminen from comment #0)
> It also seems to be specific to *drm-tip* v4.19.0 kernel as I don't see it
> with latest drm-tip v4.20.0-rc3 kernel.  So it's also possible that it's a
> bug in i915, that just gets triggered by Mesa change, and which got fixed
> later.

I've now seen hangs also with drm-tip v4.20.0-rc3 kernel.


However, these GPU hangs don't happen anymore with this or later Mesa commit
(regardless of whether they're with v1.19 or v4.20-rc4 drm-tip kernels):
3c96a1e3a97ba 2018-11-26 08-29-39: radv: Fix opaque metadata descriptor last
layer

-> FIXED?

(I'm lacking data for several previous days, so I can't give an exact time when
those hangs stopped.)

Raytracing demo SPIR-V warnings happen still, although I updated Sacha Willem's
demos to latest Git version.

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