[Fedora-xen] kvm crash on f8

[Daniel P. Berrange]

On Fri, Dec 28, 2007 at 05:50:40AM +0900, John Summerfield wrote:
> Daniel P. Berrange wrote:
> >On Thu, Dec 27, 2007 at 05:39:22PM +0200, Avi Kivity wrote:
> >>John Summerfield wrote:
> >>>>>I think this is:
> >>>>>http://debian.merseine.nu/bsod0.png
> >>>>>
> >>>>This is a corrupted disk, or perhaps the IDE driver is not installed
> >>>>correctly.
> >>>the disk is fine, I can boot it natively. The hardware emulation in 
> >>>qemu is very old (circa Pentium Pro CPUs). It's possible (probable, do 
> >>>I remember LBA supports 120 Gbytes? wasn't there an earlier max of 32 
> >>>Gbytes?) the disk (320 Gbytes) is larger than the emulation supports.
> >>>
> >>>It's also possible that Windows is picking up garbage device geometry.
> >>>
> >>Ah, I haven't tried very large disks.  I'll check it out.
> >
> >Funnily enough, a change was just commited to the Xen's copy of the QEMU
> >ROMBIOS to support disks > 128 GB which I suspect would also apply to
> >upstream QEMU / KVM's rombios
> >
> >  changeset:   16669:7fbc521b07a9
> >  tag:         tip
> >  user:        Keir Fraser <keir.fraser at citrix.com>
> >  date:        Thu Dec 27 13:00:40 2007 +0000
> >  files:       tools/firmware/rombios/rombios.c
> >  description:
> >  x86, hvm, rombios: INT13 LBA48 support for disks bigger than 128GB.
> >  The new limit should be 2TB.
> >  
> >  Signed-off-by: Samuel Thibault <samuel.thibault at citrix.com>
> >
> >
> >http://xenbits.xensource.com/staging/xen-unstable.hg?rev/7fbc521b07a9
> >
> >Regards,
> >Dan.
> 
> Thanks, Dan, that's encouraging. When is (and is) this likely to filter 
> through to those of us who prefer to not patch their own software?

When Avi releases -59 we'll include that in rawhide. If you need the
LBA-48 fix applied to other releases please file a BZ against the 
appropriate Fedora release and add a link to this thread in the BZ
report.

Regards,
Dan.
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