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[Qemu-devel] Live migration of x86-64 kvm guests broken?

From: Jan Kiszka
Subject: [Qemu-devel] Live migration of x86-64 kvm guests broken?
Date: Wed, 02 Dec 2009 16:24:27 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 
Hi,

I'm facing stalled x86-64 guests after live migration when using kvm
(share disk images). This does not happen with x86-32 guests or when
disabling kvm. Both qemu and qemu-kvm git heads are affected (recent
vmstate fixes applied). Running I/O load during the migration (e.g. a
simple "ls -R /") seems to trigger it reliably.

Can anyone confirm / comment on this? Do we fail to restore some magic
state that only long mode cares about?

Jan

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Corporate Competence Center Embedded Linux
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