Messages in this thread |  | | Date | Fri, 23 Aug 2002 13:34:53 -0700 | From | george anzinger <> | Subject | Re: process 0 |
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"Richard B. Johnson" wrote: > > On Fri, 23 Aug 2002 ic@aleph1.net wrote: > > > Hi. > > Maybe this is a little off topic, but does what is the real status of > > Process 0 (swapper) ? > > Some people keep telling me it doesn't exist, but on some kernel crashes > > I can see "process swapper (pid 0, process nr 0, ...)" > > > > Can someone help me ? > > Well, it kind-of exists. It's what the CPU does when there is nothing > else to do. Sort of like: > > for(;;) > schedule(); > > It's also where it 'goes' if init returns <grin>.
ALSO, FWIW on a N way SMP there will be N process 0s. So much for unique pids :)
-- George Anzinger george@mvista.com High-res-timers: http://sourceforge.net/projects/high-res-timers/ Preemption patch: http://www.kernel.org/pub/linux/kernel/people/rml - 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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