Debugging tools/approach for GPU hangs?

Steve Langasek steve.langasek at
Sun Sep 6 08:23:01 BST 2009

On Sat, Sep 05, 2009 at 10:16:28PM -0700, Bryce Harrington wrote:
> On Fri, Sep 04, 2009 at 08:12:09AM -0700, Jesse Barnes wrote:
> > > >  * Documenting all of the above so that it can be easily executed by
> > > >    reasonably technical users

> > There are some reset patches available, but they don't seem to work in
> > all cases.  It would be good to know if they were useful for any of
> > your reported hangs...  It might be that they're better than nothing
> > and we should push them upstream now.

> Unfortunately the freeze bugs I've seen reported recently appear to be
> difficult for the reporters to reproduce at will (e.g. occur only after a
> few days).  But it definitely sounds like something worth pulling in for
> Karmic+1.

Why would we not want to pull these for karmic?  Is there a significant risk
of regressions with these patches?

If the only problem is that they don't always work, that's still better than
where we are now, surely.

Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                          
slangasek at                                     vorlon at

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