diff options
Diffstat (limited to 'mm/oom_kill.c')
| -rw-r--r-- | mm/oom_kill.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index d503e9ce1c7b..f82dd13cca68 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -643,8 +643,12 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, * If current has a pending SIGKILL or is exiting, then automatically * select it. The goal is to allow it to allocate so that it may * quickly exit and free its memory. + * + * But don't select if current has already released its mm and cleared + * TIF_MEMDIE flag at exit_mm(), otherwise an OOM livelock may occur. */ - if (fatal_signal_pending(current) || task_will_free_mem(current)) { + if (current->mm && + (fatal_signal_pending(current) || task_will_free_mem(current))) { set_thread_flag(TIF_MEMDIE); return; } |