My apologies: I posted the /var/log/kern.log AFTER I restarted the computer. Here it is after I've attached the external hard drive but before I've ejected it.
** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/874530/+attachment/2554533/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874530 Title: When a removable USB drive is safely removed without choosing to unmount first, it causes a full-blown kernel panic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/874530/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs