On Friday 08 May 2009, Andrew Morton wrote: > On Fri, 8 May 2009 00:50:41 +0200 > "Rafael J. Wysocki" <rjw@xxxxxxx> wrote: > > > On Friday 08 May 2009, Andrew Morton wrote: > > > On Fri, 8 May 2009 00:14:48 +0200 > > > "Rafael J. Wysocki" <rjw@xxxxxxx> 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. :-) > > argh. Third time: > > - if the task is computing pi, let it do so. > > - if the task tries to allocate memory and succeeds, let it proceed. > > - if the task tries to allocate memory and fails and then tries to invoke > the oom-killer, stop the task. Understood. -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
