script's lock before doing the cleanup, to avoid a race that causes the message
"xenstore-list: could not list path backend/vbd/40" in /var/log/hotplug.log,
with a subsequent refusal to create the domain, after a domain reboot.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
and udev. Pass all commands through from xen-backend.agent or
xen-backend.rules rather than second-guessing the individual scripts. This
should make it easier to tear down devices cleanly, especially the dangling
vifs we are seeing at the moment.
Cope with a missing type node inside the block script, as we don't want to
resurrect a removed node by writing a hotplug error message.
Log failure of iptables command.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
emellor@leeni.uk.xensource.com
kaf24@firebug.cl.cam.ac.uk