[Intel-gfx] sandy bridge gpu crash on z68 chipset (astock z68 pro3) with gen6 power saving code

[ben at bwidawsk.net]

On Tue, Jul 05, 2011 at 03:15:07PM +0100, Jools Wills wrote:
> On 01/07/11 21:35, Jools Wills wrote:
> > I have reported a bug over at the kernel bugtracker
> > 
> > https://bugzilla.kernel.org/show_bug.cgi?id=38492
> 
> no devs have a comment or advice regarding this issue ?

AFAIK, nobody has had any persisting problems here on GEN6
> 
> I have since heard from someone else with this board that "adding
> i915.i915_enable_rc6=0 as a kernel boot parameter" also solves it. would
> that do the equivalent to my commenting out the code, or also other stuff?

It should be roughly equivalent, yes. If rc6 is in fact the problem then
it is probably equivalent. You should try and see as we do set some
other bits in gen6_enable_rps.

> they also pointed me to
> https://bugzilla.kernel.org/show_bug.cgi?id=38332 - which could be
> related?

Up until now, Gu is the only person we've been aware of with this
problem, and his previous problem seemed to be Ironlake specific, though
now we don't know what is going on.

> 
> Best Regards
> 
> Jools
You can come to #intel-gfx IRC channel and chat about it. We would like
to fix these powersaving issues and have been unable to reproduce most
of them locally.

Ben