Re: port-xen/30977: FPU troubles

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Dec 09, 2005 at 06:45:50PM +0100, Quentin Garnier wrote:
> On Wed, Nov 23, 2005 at 01:47:04PM +0100, Manuel Bouyer wrote:
> > On Wed, Nov 23, 2005 at 08:15:04AM +1100, Paul Ripke wrote:
> > > I've finally got around to trying xen (NetBSD-3.0BETA, xen 2.0.7) and
> > > have run into this PR in DOM0.
> > > 
> > > First sign was xearth coredumping on login. Next was only "clicking"
> > > from xmms, and I've had xpdf core, too.
> > > 
> > > A little debugging shows that the FPU state is not being correctly
> > > saved or restored during "some" context switches. The following code
> > > appears to exhibit the behaviour reliably:
> [...]
> > Index: i386/machdep.c
> > ===================================================================
> 
> ogg123 is happier with this, but still not perfect.

OK, this may be related to the flaw paranoia is still reporting.

> gkrellm, OTOH, is really not happy with it.

Is this a threaded program ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
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