[PATCH] drm/amdgpu: initialize the context reset_counter in amdgpu_ctx_init

[Marek Olšák]

On Thu, Oct 6, 2016 at 4:24 PM, Alex Deucher <alexdeucher at gmail.com> wrote:
> On Thu, Oct 6, 2016 at 6:28 AM, Marek Olšák <maraeo at gmail.com> wrote:
>> Do we need to bump the DRM version for this bug fix?
>>
>
> Alternatively, we could just cc stable.  Being that the whole reset
> handling is mesa is till kind of up in the air, I'm not sure how
> critical it is.

The Mesa part is actually complete. The problem is that if an
application requests the GL_LOSE_CONTEXT_ON_RESET strategy, an
incorrect reset counter returned by the kernel will automatically kill
the OpenGL context (by setting the no-op dispatch), so it's a pretty
serious issue and the kernel should return correct values regardless
of the state of GPU reset there. If the kernel returns an incorrect
reset counter, we need a version bump for the fix.

Marek