[Xen-users] Xen DomU Communication Problems

Sarah Scheibe
2008-02-15T16:10:22Z

Good Morning,

I have a Xen machine with a domU that provides backups for our department.
The domU is running Bacula. The dom0 hosts the bacula storage daemon which
communicates with the tape device connected to the dom0.

I recently moved our file server onto this machine under this dom0. Prior
to this move, backups worked fine on the file server as well as everything
else. However, post move, whenever I attempt to back up the file server I
lose network on both domUs (the backup server and the file server) until I
either kill the bacula storage daemon on the dom0 or console in to the
backup server and kill bacula from there. After that, networking returns to
both domUs immediately.

These two domUs are the only domUs on this machine. Networking is never
affected on the dom0, just the domUs. Backing up all other servers still
works just fine.

I am frankly stumped. I am running a debian distribution, and have tried
upgrading the kernel to version 2.6.18 and upgrading to the most recent Xen
hypervisor 3.0.3.1 revision, all without luck in solving the problem.

If anyone has any ideas or has run into this problem and found a solution,
your advice would be greatly appreciated.

Sincerely,
Sarah