Re: [PATCH 2/5] Revert "oom: give the dying task a higher priority"
From: Luis Claudio R. Goncalves <hidden>
Date: 2011-03-23 13:40:50
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On Wed, Mar 23, 2011 at 04:42:29PM +0900, KAMEZAWA Hiroyuki wrote: | On Tue, 22 Mar 2011 20:06:48 +0900 (JST) | KOSAKI Motohiro [off-list ref] wrote: | | > This reverts commit 93b43fa55088fe977503a156d1097cc2055449a2. | > | > The commit dramatically improve oom killer logic when fork-bomb | > occur. But, I've found it has nasty corner case. Now cpu cgroup | > has strange default RT runtime. It's 0! That said, if a process | > under cpu cgroup promote RT scheduling class, the process never | > run at all. | > | > Eventually, kernel may hang up when oom kill occur. | > | > The author need to resubmit it as adding knob and disabled | > by default if he really need this feature. | > | > Cc: Luis Claudio R. Goncalves [off-list ref] | > Signed-off-by: KOSAKI Motohiro [off-list ref] | | Acked-by: KAMEZAWA Hiroyuki [off-list ref] The original patch was written to fix an issue observed in 2.6.24.7-rt. As the logic sounded useful, I ported it to upstream. Anyway,I am trying a few ideas to rework that patch. In the meantime, I'm pretty fine with reverting the commit. Acked-by: Luis Claudio R. Goncalves <redacted> -- [ Luis Claudio R. Goncalves Bass - Gospel - RT ] [ Fingerprint: 4FDD B8C4 3C59 34BD 8BE9 2696 7203 D980 A448 C8F8 ] -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>