From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark McLoughlin <markmc@redhat.com>
Subject: Re: [ kvm-Bugs-2009439 ] data corruption with virtio-blk
Date: Sat, 05 Jul 2008 11:29:08 +0100
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To: Javier Guerra <javier@guerrag.com>
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On Thu, 2008-07-03 at 09:58 -0500, Javier Guerra wrote:
> On Thu, Jul 3, 2008 at 3:03 AM, Mark McLoughlin <markmc@redhat.com> wrote:
> > I think the below fixes the data corrupter, but I'm still tracking down
> > another issue where the guest is hanging waiting for I/O to complete
> > with the latest virtio-blk backend.
> 
> is that a common case? i haven't been able to finish a system install
> on either virtio or scsi block devices.  both linux (Ubuntu JeOS 8.04)
> and windows (xp sp2) freeze sometime while writing packages.  IDE
> installs work perfectly

It's certainly possible the hangs you're seeing were caused by the
IOAPIC interrupt injection bug I just sent out a fix for - you could try
doing an install either running kvm-qemu -no-kvm-irqchip or booting the
guest with "noapic" on the kernel command line. If the IOAPIC bug is
your issue, you shouldn't see any freezes.

Cheers,
Mark.