Messages in this thread |  | | | Date | Sun, 7 Jun 2009 19:42:28 +0530 | | Subject | Re: [patch -mmotm] oom: only oom kill exiting tasks with attached memory | | From | Balbir Singh <> |
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On Sun, Jun 7, 2009 at 3:42 AM, David Rientjes<rientjes@google.com> wrote: > When a task is chosen for oom kill and is found to be PF_EXITING, > __oom_kill_task() is called to elevate the task's timeslice and give it > access to memory reserves so that it may quickly exit. > > This privilege is unnecessary, however, if the task has already detached > its mm. Although its possible for the mm to become detached later since > task_lock() is not held, __oom_kill_task() will simply be a no-op in such > circumstances. > > Subsequently, it is no longer necessary to warn about killing mm-less > tasks since it is a no-op. > > Cc: Rik van Riel <riel@redhat.com> > Signed-off-by: David Rientjes <rientjes@google.com>
Seems like a good change to make. Did you encounter this situation on a real machine?
Balbir -- 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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