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On Tue, Jan 20, 2004 at 06:11:49PM +1100, Nick Piggin wrote: > I thought hotplug is allowed to fail? Thus you can have a hung system. > Or what if the hotplug script itself becomes TASK_UNRUNNABLE? What if the > process needs a guaranteed scheduling latency? I guess a hotplug script MAY fail. I don't think it's a good idea to make your CPU hotplug script fail. May and Misght are different. It's up to the implementor whether the script can get into a failure condition. The hotplug script can only become unrunnable if you yank out all the CPUs on the system. I'd assume it would have an affinity of 0xffffffff. What if <which> process needs guaranteed scheduling latency? Do we really _guarantee_ scheduling latency *anywhere*? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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