Sorry Joseph, I should have been clearer. It was with the mainline kernel 3.12.0-999-generic #201310090426, I never gor around to trying the rc5 kernel as you suggested - this is my company fileserver so I cannot just do immediate changes (unless of course it has just crashed and I am recovering).
I think the lock up problem now is related to bug #1237794 which I am also looking at, I have not encountered anymore memory issues. so if you wish you could close this as fixed upstream and I will continue with #1237794 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1238658 Title: rsync between two btrfs filesystems causes machines to crash with symptoms of memory leak To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1238658/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs