[Xen-devel] Re: [Fedora-xen] 2.6.31-1.2.65.xendom0.fc12.x86_64 crash on boot

[Charles Gruener <cjg9411@xxxxxxx>]

This absolutely fixes my issue.  With the latest patch, I can boot my  
system successfully if NX is enabled or disabled in the BIOS.
Just a final note, I do need to make sure VT-d is disabled in the  
BIOS, and then I can boot.  This was obviously not addressed in this  
patch nor was it requested to be.  It would be nice to have it working  
at some point as this machine will hopefully have a bunch of NVidia  
cards in it that will need to be dedicated to each of the domU's for  
CUDA research.
Thank you all for your prompt and courteous responses.  It makes me  
proud to be a RHCE when I get support from a community of developers  
like you guys.
Charles

On Sep 16, 2009, at 7:47 AM, Pasi Kärkkäinen wrote:

> On Wed, Sep 16, 2009 at 09:47:17AM +0100, M A Young wrote:
> > On Tue, 15 Sep 2009, Jeremy Fitzhardinge wrote:
> >
> > > On 09/15/09 04:39, Pasi Kärkkäinen wrote:
> > > > On Tue, Sep 15, 2009 at 07:29:52AM -0400, Charles Gruener wrote:
> > > >
> > > > > Thanks for the help on configuring my boot options.  I apologize  
> > > > > that
> > > > > I forgot to mention I'm using the latest kernel from M. Young,
> > > > > 2.6.31-1.2.65.xendom0.fc12.x86_64.  Here's what I get now that  
> > > > > I've
> > > > > done all of what you've said:
> > > > Ok. I've CCd Jeremy and xen-devel.
> > > >
> > > > Does this crash look familiar to you Jeremy?
> > > Does this fix it?
> > >
> > > > From 76ca2d74040210450a670df773d760867f07d519 Mon Sep 17 00:00:00  
> > > > 2001
> > > From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
> > > Date: Tue, 15 Sep 2009 14:18:12 -0700
> > > Subject: [PATCH] xen: check EFER for NX before setting up GDT  
> > > mapping
> > kernel-2.6.31-1.2.67.xendom0.fc12.x86_64.rpm has this fix in if you  
> > want
> > to test it, at
> > http://koji.fedoraproject.org/koji/getfile?taskID=1681664&name=kernel-2.6.31-1.2.67.xendom0.fc12.x86_64.rpm
> > (the other kernel packages are available via
> > http://koji.fedoraproject.org/koji/taskinfo?taskID=1681662
> > ) I haven't tested it so I don't know if it boots.
> Charles: Please try this updated kernel and let us know if it works  
> for
> you.
>
> Thanks!
>
> -- Pasi

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