[Xen-devel] Re: Paging oopses

[stevegt@TerraLuna.Org]

Aargh!  Please disregard.  While processing ksymoops just now I realized
that the two guest machines that had these oopses were in fact the
*only* two that I hadn't yet upgraded to the 12 Feb/GCC 3.3.2 xenolinux.
These were running the new Xen, old xenolinux.  All others have been
fine, with a week of runtime so far.

Steve

On Fri, Feb 20, 2004 at 10:23:26PM -0800,  wrote:
> Hi All, bad news.
> 
> After running several guests for most of the past week on the 12 Feb
> build of 1.2, built with GCC 3.3.2, with 64Mb of RAM and NFS roots, I
> finally got another paging oops.  The entire console log, xen and
> xenolinux binaries, and System.map, are at:
> 
> 	http://t7a.org/tmp/oops1-n2h54/
> 
> Let me know if there's anything else I can do.  
> 
> Steve
> 
> 
> On Wed, Feb 11, 2004 at 10:35:15PM +0000, Keir Fraser wrote:
> > > - install ksymoops/System.map on those nodes so that we can get
> > >   meaningful oops output if it does happen again (per earlier mail from
> > >   Ian and Bin)
> > 
> > Number-one priority for debugging is having access to the kernel
> > object file (it's the 'vmlinux' file at the root of the build
> > tree). Given that, and the precise version of Xen/Xenolinux that you
> > built, I can have a fair stab at unpicking what happened. If the crash
> > is in Xen itself then the Xen image file is what I need ('xen' file at
> > teh root of the Xen build tree).
> > 
> > Symbolic backtraces are nice but definitely of secondary importance.
> > 
> > > The reason I'm doing this in a chroot is that I'm thinking of setting up
> > > an automated Xen regression test environment under Xen, daily pulls,
> > > that sort of thing.  This NFS root would be a build server for that
> > > environment.  Is anyone already working on something like this?
> > 
> > We have a regression test here in the lab, but:
> >  1. It uses some SPEC benchmarks, so it's not publically distributable.
> >  2. It's based on an old Redhat -- a more up-to-date filesystem would
> >  be good.
> >  3. We don't have enough spare machines to do a really large test.
> > 
> > Your setup sounds liek it could be much better!
> > 
> >  -- Keir
> > 
> > 
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> -- 
> Stephen G. Traugott  (KG6HDQ)
> UNIX/Linux Infrastructure Architect, TerraLuna LLC
> stevegt@TerraLuna.Org 
> http://www.stevegt.com -- http://Infrastructures.Org 

-- 
Stephen G. Traugott  (KG6HDQ)
UNIX/Linux Infrastructure Architect, TerraLuna LLC
stevegt@TerraLuna.Org 
http://www.stevegt.com -- http://Infrastructures.Org