Messages in this thread |  | | | Date | Sun, 08 Dec 2002 22:02:58 -0500 | | From | Jim Houston <> | | Subject | Re: [PATCH] set_cpus_allowed() for 2.4 |
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Hi Everyone,
I ran into a lockup with the O(1) scheduler back in August and exchanged email with Andrea. I tried a couple of his patches. They prevented the lockup but it was still easy to have the X server exiled to the inactive array for seconds at a time. This got me started working on a patch to make the schedule more fair.
I posted a patch archive here: http://marc.theaimsgroup.com/?l=linux-kernel&m=103508412423719&w=2
It fixes fairness but breaks nice(2). Rik van Riel has a patch here which builds on my patch which fixes this: http://marc.theaimsgroup.com/?l=linux-kernel&m=103651801424031&w=2
I tested the combination of these patches with linux-2.5.48 and it seems well behaved:-)
I found this problem with the LTP waitpid06 test. It actually produced a live-lock. See this mail: http://marc.theaimsgroup.com/?l=linux-kernel&m=103133744217082&w=2
I have been distracted by Posix timers but I plan to get back finish this.
Jim Houston - Concurrent Computer Corp. - 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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