diff options
| -rw-r--r-- | mm/oom_kill.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 1ecc0bcaecc5..8ad35aa45436 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -554,6 +554,12 @@ void oom_kill_process(struct oom_control *oc, struct task_struct *p, /* mm cannot safely be dereferenced after task_unlock(victim) */ mm = victim->mm; + /* + * We should send SIGKILL before setting TIF_MEMDIE in order to prevent + * the OOM victim from depleting the memory reserves from the user + * space under its control. + */ + do_send_sig_info(SIGKILL, SEND_SIG_FORCED, victim, true); mark_oom_victim(victim); pr_err("Killed process %d (%s) total-vm:%lukB, anon-rss:%lukB, file-rss:%lukB\n", task_pid_nr(victim), victim->comm, K(victim->mm->total_vm), @@ -585,7 +591,6 @@ void oom_kill_process(struct oom_control *oc, struct task_struct *p, } rcu_read_unlock(); - do_send_sig_info(SIGKILL, SEND_SIG_FORCED, victim, true); put_task_struct(victim); } #undef K |