Re: [PATCH] oom: skip frozen tasks
From: Konstantin Khlebnikov <hidden>
Date: 2011-08-26 09:59:21
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David Rientjes wrote:
On Fri, 26 Aug 2011, Konstantin Khlebnikov wrote:quoted
quoted
A much better solution would be to lower the badness score that the oom killer uses for PF_FROZEN threads so that they aren't considered a priority for kill unless there's nothing else left to kill.Anyway, oom killer shouldn't loop endlessly if it see TIF_MEMDIE on frozen task, it must go on and try to kill somebody else. We cannot wait for thawing this task.Did you read my suggestion? I quoted it above again for you. The badness heuristic would only select those tasks to kill as a last resort in the hopes they will eventually be thawed and may exit. Panicking the entire machine for what could be isolated by a cgroup is insanity.
Maybe just fix this "panic" logic? OOM killer should panic only on global memory shortage. -- 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>