Yeah this really sounds like a kernel refcount bug. However, I'll try to reproduce with upstream kvm, and then upstream latest kernel.
** Changed in: qemu-kvm (Ubuntu) Assignee: (unassigned) => Serge Hallyn (serge-hallyn) ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided => High ** Changed in: qemu-kvm (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. https://bugs.launchpad.net/bugs/685991 Title: cannot kill kvm process that uses 'tap' -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs