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| author | Oleg Nesterov <oleg@redhat.com> | 2015-11-05 18:48:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:34:48 -0800 |
| commit | 0c1b2d783cf3432490bf1e532c742fffeadc0bf3 (patch) | |
| tree | 5911c41db08ee6c980d5b748283cec22b016cee5 /mm/oom_kill.c | |
| parent | 09357814778a38a5ab2d031cba6c9e9fe090c849 (diff) | |
| download | linux-0c1b2d783cf3432490bf1e532c742fffeadc0bf3.tar.gz linux-0c1b2d783cf3432490bf1e532c742fffeadc0bf3.tar.xz | |
mm/oom_kill: remove the wrong fatal_signal_pending() check in oom_kill_process()
The fatal_signal_pending() was added to suppress unnecessary "sharing same
memory" message, but it can't 100% help anyway because it can be
false-negative; SIGKILL can be already dequeued.
And worse, it can be false-positive due to exec or coredump. exec is
mostly fine, but coredump is not. It is possible that the group leader
has the pending SIGKILL because its sub-thread originated the coredump, in
this case we must not skip this process.
We could probably add the additional ->group_exit_task check but this
patch just removes the wrong check along with pr_info().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Kyle Walker <kwalker@redhat.com>
Cc: Stanislav Kozina <skozina@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/oom_kill.c')
| -rw-r--r-- | mm/oom_kill.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 58f3d2748ced..c837d06dce5a 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -579,11 +579,7 @@ void oom_kill_process(struct oom_control *oc, struct task_struct *p, !(p->flags & PF_KTHREAD)) { if (p->signal->oom_score_adj == OOM_SCORE_ADJ_MIN) continue; - if (fatal_signal_pending(p)) - continue; - pr_info("Kill process %d (%s) sharing same memory\n", - task_pid_nr(p), p->comm); do_send_sig_info(SIGKILL, SEND_SIG_FORCED, p, true); } rcu_read_unlock(); |