Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH 1/5] mm: Add __GFP_NO_OOM_KILL flag | Date | Fri, 8 May 2009 00:50:41 +0200 |
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On Friday 08 May 2009, Andrew Morton wrote: > On Fri, 8 May 2009 00:14:48 +0200 > "Rafael J. Wysocki" <rjw@sisk.pl> wrote: > > > IOW, you need to freeze the user space totally before trying to disable the > > OOM killer. > > Not necessarily. We only need to take action if a task is about to > start oom-killing - presumably by taking a nap. > > If a process is sitting there happily computing pi then we can leave it > running.
Well, the point is we don't really know what the task is going to do next. Is it going to continue computing pi, or is it going to execl(huge_binary), for example?
If we knew what tasks were going to do in advance, the whole freezing wouldn't really be necessary. :-)
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