Broken loadvm ?

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KVM module:

modinfo kvm :
filename:       /lib/modules/2.6.33-30-default/kernel/arch/x86/kvm/kvm.ko
license:        GPL
author:         Qumranet
srcversion:     611CD56E712705875D0E7BB
depends:
vermagic:       2.6.33-30-default SMP mod_unload modversions
parm:           oos_shadow:bool
parm:           ignore_msrs:bool

qemu-kvm :

(qemu) info version
0.11.0 (qemu-kvm-0.11.0-4.5.2)

command line :

qemu-kvm -drive
file=/srv/pvmd/vm/templates/XP_32_SP3/disk.qcow2,cache=writeback,index=0,format=qcow2,boot=on
-vnc :10 -monitor stdio -net nic,model=e1000,macaddr=52:54:00:12:34:00
  -net tap,ifname=tap0,script=no -cpu core2duo -m 512

I have a freshly installed win xp. I was trying to create a snapshot
with savevm from the monitor. With cace=writeback performance was
good, but it *seemed* that after a loadvm (from monitor or command
line) the VM was frozen. I played with it a couple of hours before
realizing that in fact, it's only the mouse that doesn't work after a
loadvm (trough vnc, the system is remote). At least i hope that every
other device works as expected. If the loadvm happens in the same
session as savevm everything works as expected. I also tested on a
2.6.27.39 with kvm-88 it all works ok.

Is this a bug?
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