Comment 36 for bug 579276

This was fixed, but not in Ubuntu yet.

See:

"udp: use limited socket backlog"
http://kerneltrap.org/mailarchive/linux-netdev/2010/3/3/6271096

Bug#576838: virtio network crashes again
starting with comment 184
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=592187#184

LP#661212 "crash after kswapd page allocation failure"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/661212