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From: Michael Tokarev <mjt@tls.msk.ru>
To: KVM list <kvm@vger.kernel.org>
Subject: migration fails with virtio-blk
Date: Mon, 10 May 2010 13:49:09 +0400	[thread overview]
Message-ID: <4BE7D695.9020002@msgid.tls.msk.ru> (raw)

Apparently there's an issue with migration when
virtio-blk is in use at the time migration occurs.

See Debian bug #580649 for details:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=580649

In short: 2.6.26 (guest) + 0.12.3 + virtio-blk fails.
2.6.32 guest works, 0.11 works, non-virtio-blk works.

Debian qemu-kvm is compiled without --enable-iothread -
JFYI.

The bugreport contains a backtrace taken from guest.

Now, one can say it's a bug in 2.6.26 kernel, which
is quite old.  But the problem does not occur with
qemu-kvm-0.11, so it might be treated as a regression
instead.

Thanks!

/mjt


             reply	other threads:[~2010-05-10  9:49 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-10  9:49 Michael Tokarev [this message]
2010-05-10 18:34 ` migration fails with virtio-blk Michael Tokarev
2010-05-10 18:38   ` Anthony Liguori
2010-05-10 18:57     ` Michael Tokarev

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