Re: kvm crash on f8

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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@xxxxxxxxxx>
  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@xxxxxxxxxx>


http://xenbits.xensource.com/staging/xen-unstable.hg?rev/7fbc521b07a9

Regards,
Dan.
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