[Bug 111153] run gfxbench manhattan in virtio-gpu guest causes host i915 recoverable gpu hang

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Aug 7 10:49:04 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=111153

--- Comment #11 from Tapani Pälli <lemody at gmail.com> ---
(In reply to Wang Zhenyu from comment #10)
> I'm not sure, as that one seems to be vulkan issue.
> 
> For this one, if you download my trace file, it actually hangs at call
> 233679, which is a compute shader program dispatch. Although this program
> has been dispatched for several times, maybe somehow uniform or shader
> storage buffer input has caused trouble in this shader, as you can see that
> it has loop internal. 
> 
> And another thing worth check is if there's any overflow of ssbo write. Is
> there anyway to check that from i965 backend?

You may try to use 'intel_sanitize_gpu' tool to detect out-of-bounds GPU
writes, tool can be built as part of Mesa.

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