[Intel-gfx] Getting "rcs0: reset request timeout" on 4.19.16

[Chris Wilson]

Quoting Marcin Owsiany (2019-05-22 08:54:50)
> Hello,
> 
> Every couple of weeks or so my laptop experiences some graphics-related
> crash. Sometimes it's more frequent - happened twice yesterday.
> 
> I'm wondering whether this could be a sign of a hardware failure? Or is this
> some software lock-up?  Please do let me know whether I can do anything to help
> debug this.

It starts as a userspace hang that takes out the GPU. Update mesa to
one of the 19.x stable releases.

> As you can see from the log below, sometimes there is just a single
> "Resetting rcs0 for hang on rcs0" from which it recovers, while at other
> times it is followed by "reset request timeout", together with an X
> server crash.

File a regression report against debian, X should not crash and did not
use to crash over a mere terminal GPU hang.
-Chris