Your filesystem is corrupt, and based on previous bugs I suspect you may have corrupted it by running QEMU twice against the one qcow file.
** Changed in: linux (Ubuntu Trusty) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1266399 Title: ext4-fs error messages pop up on command line To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1266399/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs