On Mon, May 07, 2007 at 04:17:24PM +0530, Gautham R Shenoy wrote: > Nevertheless, with the freezer based approach that we're experimenting, > this problem shouldn't arise. We expect the whole system to get frozen > before we actually do a cpu_down() (which will then call > __stop_machine_run). So any such rogue RT task will have to first fail > the freezer ( which it will),
>From what I understand of the freezer, if the RT task is running in user space (which seems to be the case in this thread), it should get frozen even if it is a forever running SCHED_FIFO task at MAX_RT_PRIO -1 priority? > but that's ok, since on a freezer-fail, > we just thaw all the processes and get the system up and running again. > Yeah, the cpu-hotplug operation will fail though. -- Regards, vatsa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
