I suspect Skype is running away (or more likely spin waiting in a tight loop calling gettimeofday). If a process is SCHED_FIFO 99, then it will block all other processes from running until it yields. It may be possible that it could also tickle the soft-lockup detection code. I'm guessing skype runs suid (in order to set itself SCHED_FIFO 99)? What happens if you remove its suid bit and force it to run as a regular user?
-- BUG() report in getnstimeofday: soft lockup https://launchpad.net/bugs/53216 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
