Whilst looking for others that have encountered this, I came across an unreferenced pastebin http://pastebin.com/sPwXJS0x , seems to be the same issue.
... init: log.c: 291: Assertion failed in log_io_error_handler: err-> number == EIO init: Caught abort, core dumped init: io.c: 1312: Unhandled error from nih_io_destroy: bad file descriptor init: Caught abort, core dumped kernel panic - not syncing: Attempted to kill init! Pid: 1, comm: init Tainted: P C O 3.2.0-7-generic #13-Ubuntu Call Trace: [<ffffffff81639ce7>] panic+0x91/0x1a7 [<ffffffff81069205>] forget_original_parent+0x245/0x250 [<ffffffff81069227>] exit_notify+0x17/0x160 [<ffffffff81069b03>] do_exit+0x1f3/0x420 [<ffffffff81141713>] ? do_munmap+0x1f3/0x2f0 [<ffffffff81069ed4>] do_group_exit+0x44/0xa0 [<ffffffff81069f47>] sys_exit_group+0x17/0x20 [<ffffffff8165a5c2>] system_call_fastpath+0x16/0x1b ... ** Changed in: upstart (Ubuntu) Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/912558 Title: log.c Assert failed - err=>number == EIO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/912558/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs