diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/oom_kill.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 36d5dd88d990..bfddc93ccd34 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -556,8 +556,27 @@ static void oom_reap_task(struct task_struct *tsk) schedule_timeout_idle(HZ/10); if (attempts > MAX_OOM_REAP_RETRIES) { + struct task_struct *p; + pr_info("oom_reaper: unable to reap pid:%d (%s)\n", task_pid_nr(tsk), tsk->comm); + + /* + * If we've already tried to reap this task in the past and + * failed it probably doesn't make much sense to try yet again + * so hide the mm from the oom killer so that it can move on + * to another task with a different mm struct. + */ + p = find_lock_task_mm(tsk); + if (p) { + if (test_and_set_bit(MMF_OOM_NOT_REAPABLE, &p->mm->flags)) { + pr_info("oom_reaper: giving up pid:%d (%s)\n", + task_pid_nr(tsk), tsk->comm); + set_bit(MMF_OOM_REAPED, &p->mm->flags); + } + task_unlock(p); + } + debug_show_all_locks(); } |