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Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0 (was: Re: git-b
From: |
Richard W.M. Jones |
Subject: |
Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0 (was: Re: git-bisect results |
Date: |
Sat, 17 Dec 2011 13:16:51 +0000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Dec 16, 2011 at 07:44:10PM -0600, Anthony Liguori wrote:
> Fairly certain this bisect is a red herring.
>
> tglx reported this the other day in IRC. He narrowed it down to
> virtio-serial. He was able to reproduce it both with kvm tools and
> QEMU.
I looked at this a bit more closely, and what fails is the loading in
the guest of the virtio_blk.ko driver. virtio_console is not loaded
when the failure happens.
Disabling virtio-serial on the qemu side makes no difference.
Switching to IDE works, but only if I prevent virtio_blk from being
loaded during boot. In other words, it's the act of loading
virtio_blk which causes the strange hang, even if there are no virtio
block devices exported to the guest.
Not sure what any of this means, since I can't honestly believe that
no one has tried a virtio guest on qemu 1.0.
Guest kernel is vmlinuz-3.2.0-0.rc1.git2.1.fc17.x86_64 (from Fedora).
If you want me to try patches or take a look at any particular qemu
git commits, I'm all ears. I don't know where to go from here ...
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
libguestfs lets you edit virtual machines. Supports shell scripting,
bindings from many languages. http://libguestfs.org
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, (continued)
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Anthony Liguori, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Richard W.M. Jones, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Daniel P. Berrange, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Richard W.M. Jones, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Richard W.M. Jones, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Anthony Liguori, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Daniel P. Berrange, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Anthony Liguori, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Kevin O'Connor, 2011/12/19
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0, Gleb Natapov, 2011/12/20
- Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0 (was: Re: git-bisect results,
Richard W.M. Jones <=
Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0 (was: Re: git-bisect results, Anthony Liguori, 2011/12/16
Re: [Qemu-devel] insmod virtio-blk is broken in qemu 1.0 (was: Re: git-bisect results, Anthony Liguori, 2011/12/16