panic on xen guest shutdown

["Christoph Egger" <Christoph_Egger%gmx.de@localhost>]

Hi!

When I start a xen guest I get this message:

xbdback backend/vbd/1/832: can't VOP_OPEN device 0xe13: 16

And when I shutdown the guest I get this panic:

panic: kernel diagnostic assertion "vp == vp->v_specnode->sn_dev->sd_bdevvp" 
failed: file "sys/miscfs/specfs/spec_vnops.c", line 1013

panic() at netbsd:panic+0x28f
kern_assert() at netbsd:kern_assert+0x2d
spec_close() at netbsd:spec_close+0x24d
VOP_CLOSE() at netbsd:VOP_CLOSE+0x29
vn_close() at netbsd:vn_close+0x4b
xbdback_xenbus_destroy() at netbsd:xbdback_xenbus_destroy+0x1cf
otherend_changed() at netbsd:otherend_changed+0x93
xenwatch_thread() at netbsd:xenwatch_thread+0x5c

Christoph