[Bug 83677] [HSW] GPU hang on ctx load

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83677

--- Comment #35 from Simon Farnsworth <simon at farnz.org.uk> ---
(In reply to comment #34)
> (In reply to comment #33) 
> > Without drm.debug=7, this gives me the VT race that ends in X logging:
> > 
> > [    79.069] (++) using VT number 1
> > 
> > [    79.070] (WW) xf86OpenConsole: setpgid failed: Operation not permitted
> > [    79.070] (WW) xf86OpenConsole: setsid failed: Operation not permitted
> > [    79.070] (EE) 
> > Fatal server error:
> > [    79.070] (EE) xf86OpenConsole: VT_ACTIVATE failed: Input/output error
> 
> Not my fault! It's a race entirely in the VT layer. It's been plaguing my
> machines for many months but I haven't decyphered enough of the VT code to
> understand what it is trying to do, let alone why it is failing.
> 
> If you try to start X again, it will work - it's purely a timing issue
> afaict.
> 
> Would be good to know if the machine runs stable without the drm.debug, and
> what happens without i915.enable_rc6=0.

Shiny. I run without drm.debug, and I'm stable. I remove i915.enable_rc6=0, and
the GPU hangs happen again.

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