Messages in this thread Patch in this message | | | Date | Fri, 2 Apr 2010 12:54:10 -0700 (PDT) | From | David Rientjes <> | Subject | [patch -mm] oom: exclude tasks with badness score of 0 from being selected |
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An oom_badness() score of 0 means "never kill" according to Documentation/filesystems/proc.txt, so explicitly exclude it from being selected for kill. These tasks have either detached their p->mm or are set to OOM_DISABLE.
Signed-off-by: David Rientjes <rientjes@google.com> --- mm/oom_kill.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -336,6 +336,8 @@ static struct task_struct *select_bad_process(unsigned int *ppoints, continue; points = oom_badness(p, totalpages); + if (!points) + continue; if (points > *ppoints || !chosen) { chosen = p; *ppoints = points;
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