https://bugs.freedesktop.org/show_bug.cgi?id=100465
--- Comment #10 from Alex Deucher <alexdeuc...@gmail.com> ---
(In reply to Julien Isorce from comment #9)
>
> So I have 4 questions:
> 1: Can an application causes a "ring 0 stalled" ? or is it a driver bug
> (kernel side or mesa/drm or xserver) ?
driver bug. Probably mesa or kernel.
> 2: About these atombios failures, does it mean that it fails to load the
> gpu microcode/firmware ?
Most likely the GPU reset was not actually successful and the atombios errors
are a symptom of that.
> 3: Does it try to do a gpu softreset because I added R600_DEBUG=check_vm ?
> Or this one just help to flush the traces on vm fault (like mentioned in a
> commit msg related to that env var in mesa) ?
check_vm doesn't not change anything with respect to gpu reset.
> 4: For the deallocation failure / leak above (radeon_ttm_bo_destroy
> warning), does it mean the memory is lost until next reboot or does a gpu
> soft reset allow to recover these leaks ?
I'm not quite sure what you are referring to, but if the GPU reset is
successful, all fences should be signalled so any memory that is pinned due to
a command buffer being in flight could be freed.
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