From: "Serge E. Hallyn" <serge@hallyn.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] migrating instances from qemu-kvm to qemu
Date: Wed, 19 Mar 2014 16:42:47 +0100 [thread overview]
Message-ID: <20140319154247.GA31501@mail.hallyn.com> (raw)
Hi,
at https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1291321
it was found that migrating running vms from a machine with
qemu-kvm to one with qemu, migration fails due to some mismatches.
The first one we usually hit is
Length mismatch: vga.vram: 1000000 in != 800000
while the second one is network card (and I have not gone beyond
that). The vga one can be handled on the command line by
specifying the -global cirrus-vga.vrammem_mb=8. However that
doesn't help with a libvirt migration.
I guess this happens at ram_load() unfortunately - is there any
good way that this could be detected at incoming migration time
and the virtual hardware modified as needed for migration to
continue?
thanks,
-serge
next reply other threads:[~2014-03-19 15:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 15:42 Serge E. Hallyn [this message]
2014-03-19 15:49 ` [Qemu-devel] migrating instances from qemu-kvm to qemu Paolo Bonzini
2014-03-19 15:52 ` Serge E. Hallyn
2014-03-19 16:16 ` Serge E. Hallyn
2014-03-19 16:40 ` Paolo Bonzini
2014-03-19 17:08 ` Dr. David Alan Gilbert
2014-03-19 17:37 ` Serge E. Hallyn
2014-03-19 17:46 ` Dr. David Alan Gilbert
2014-03-19 19:43 ` Paolo Bonzini
2014-03-20 0:18 ` Cole Robinson
2014-03-21 17:00 ` Serge E. Hallyn
2014-03-21 17:22 ` Cole Robinson
2014-03-21 17:24 ` Serge E. Hallyn
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