On Thu 01-06-17 20:43:47, Tetsuo Handa wrote: > Cong Wang has reported a lockup when running LTP memcg_stress test [1]. This seems to be on an old and not pristine kernel. Does it happen also on the vanilla up-to-date kernel? [...] > Therefore, this patch uses a mutex dedicated for warn_alloc() like > suggested in [3]. As I've said previously. We have rate limiting and if that doesn't work out well, let's tune it. The lock should be the last resort to go with. We already throttle show_mem, maybe we can throttle dump_stack as well, although it sounds a bit strange that this adds so much to the picture. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
