[Intel-gfx] [PATCH RFC] drm/i915: Print dmesg warn on unintended hangs

[Chris Wilson]

Quoting Mika Kuoppala (2017-11-10 12:20:55)
> Chris Wilson <chris at chris-wilson.co.uk> writes:
> 
> > Quoting Mika Kuoppala (2017-11-10 11:53:47)
> >> We have a problem of distinguishing intended hangs
> >> submitted by igt during CI/bat and hangs that are nonintended
> >> happening in close proximity.
> >
> > Do we? I haven't had that problem in distinguishing them.
> 
> Piglit can't tell them apart afaik. Due to info level.

Piglit? If the test passes, it doesn't matter how the kernel got there,
the user behaviour is as expected. If the test wants to assert that it
didn't hang, it can do that.

I am very opposed to interpreting magic contents within the kernel, more
so when it is already known by userspace.
-Chris