From 68422b1290aa99227e9e6966a00d73e87e155a77 Mon Sep 17 00:00:00 2001 From: Vladimir Davydov Date: Fri, 27 May 2016 14:27:21 -0700 Subject: [PATCH] mm: oom: do not reap task if there are live threads in threadgroup If the current process is exiting, we don't invoke oom killer, instead we give it access to memory reserves and try to reap its mm in case nobody is going to use it. There's a mistake in the code performing this check - we just ignore any process of the same thread group no matter if it is exiting or not - see try_oom_reaper. Fix it. Link: http://lkml.kernel.org/r/1464087628-7318-1-git-send-email-vdavydov@virtuozzo.com Fixes: ce2bd552c729 ("oom, oom_reaper: try to reap tasks which skip regular OOM killer path")Signed-off-by: Vladimir Davydov Acked-by: Michal Hocko Cc: Tetsuo Handa Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/oom_kill.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 5bb2f7698ad7c..326dd14938f08 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -611,8 +611,6 @@ void try_oom_reaper(struct task_struct *tsk) if (!process_shares_mm(p, mm)) continue; - if (same_thread_group(p, tsk)) - continue; if (fatal_signal_pending(p)) continue; -- 2.39.5