On Tue, Jul 23, 2013 at 03:58:30PM -0600, Eric Blake wrote:
On 07/23/2013 09:21 AM, Daniel P. Berrange wrote:
From: "Daniel P. Berrange" <berrange@redhat.com>
Add protection such that the virCgroupRemove and virCgroupKill* do not do anything to the root cgroup.
Killing all PIDs in the root cgroup does not end well.
I take it you tried this, on accident :)
Yes, due to a bug elsewhere in the code I ended up with an LXC container in the / cgroup. When killing the container libvirt recursively kills all processes in the container's cgroup. When the cgroup is / this is all processes on the host until it kills itself :-) I now have a 30 mile journey to the colo to reboot this machine since I have no remote power control on it :-) Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|