Comment 15 for bug 451289

>Is return code 11 good or bad?

It means the forked process did not finish. Does /var/log/messages show the Linux 'out-of-memory killer' killed a process?

>Do you try to get the swap size trough /proc/partitions? Wouldn't be /proc/swaps better and easier for that? (Because of LVM)

Yes, try SVN 1382.