[PATCH 02/11] oom: oom_kill_process() doesn't select kthread child
in [Kernel]
|
Prev: [mmotm 0611][PATCH 00/11] various OOM bugfixes v3
Next: [PATCH 03/11] oom: make oom_unkillable_task() helper function
From: KOSAKI Motohiro on 30 Jun 2010 05:30 Now, select_bad_process() have PF_KTHREAD check, but oom_kill_process doesn't. It mean oom_kill_process() may choose wrong task, especially, when the child are using use_mm(). Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.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 index 0aeacb2..dc8589e 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -467,6 +467,8 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order, if (child->mm == p->mm) continue; + if (child->flags & PF_KTHREAD) + continue; if (mem && !task_in_mem_cgroup(child, mem)) continue; if (!has_intersects_mems_allowed(child, nodemask)) -- 1.6.5.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |