Re: I/O errors after migration - why?

[Tomasz Chmielewski <mangoo@wpkg.org>]

Nolan schrieb:
> Tomasz Chmielewski <mangoo <at> wpkg.org> writes:
>> I'm trying to perform live migration by following the instructions on 
>> http://www.linux-kvm.org/page/Migration.
>> Unfortunately, it doesn't work very well - guest is migrated, but looses 
>> access to its disk.
> 
> The LSI logic scsi device model doesn't implement device state save/restore. 
> Any suspend/resume, snapshot or migration will fail.

Oh, that sucks - as not everything supports virtio (which doesn't work 
for me as well for some reason) - like Windows (which should be 
addressed soon with block virtio drivers), but also older installations, 
running older kernels.
Does IDE support migration?


> I sent a patch that partially addresses this (but is buggy in the presence of
> in-flight IO):
> http://lists.gnu.org/archive/html/qemu-devel/2009-01/msg00744.html


-- 
Tomasz Chmielewski
http://wpkg.org