Oh I forgot to mention that another virtual machine has problems even when there's still memory left. I cannot log in via ssh on the virtual machine and on the console there are few messages like this:
task xx:xx blocked for more than 120 seconds. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1047566 Title: Memory leaks when using NFS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1047566/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
