[Fedora-xen] kvm crash on f8

[John Summerfield]

Daniel P. Berrange wrote:
> 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.
Where?
I couldn't find a matching one at RH, though I saw some that could have 
been created by this problem, if the disks had been big enough, and was 
contemplating creating one until this happened:
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> 
> Regards,
> Dan.


-- 

Cheers
John

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