On Fri, 2014-03-21 at 12:18 +0000, jimmie.da...@l-3com.com wrote: > As the submitter of the bug, let me give you my perspective. > SCHED_FIFO means run my task until it blocks or a higher priority task > pre-empts it. Period.
It blocked. > > mlock() doesn't block. check the man page. > I don't see that specified. (or how it could be, but what do I know, IANIPL) > Any other way and you are not able to use priority based scheduling. Sure you can, allocate and lock down resources before entering critical sections. If you think donning a SCHED_FIFO super-suit should make your task unstoppable, you're gonna be very disappointed. Fact is if your Juggernaut bumps ever so gently into a contended sleeping variety lock (and in the rt kernel that means nearly every lock), it will block. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/