On 02/05/2013 04:35 PM, Michal Hocko wrote: > Hi, > I would like to discuss the following topics: > * memcg oom should be more sensitive to locked contexts because now > it is possible that a task is sitting in mem_cgroup_handle_oom holding > some other lock (e.g. i_mutex or mmap_sem) up the chain which might > block other task to terminate on OOM so we basically end up in a > deadlock. Almost all memcg charges happen from the page fault path > where we can retry but one class of them happen from > add_to_page_cache_locked and that is a bit more problematic. This is not the case with kmemcg on. Those charges will usually happen from the slab/slub grow_cache mechanism, or during fork. This is not to invalidate your reasoning - since those are usually tricky in terms of context as well, and would benefit just as much - but to complete it. > * I would really like to finally settle down on something wrt. soft > limit reclaim. I am pretty sure Ying would like to discuss this topic > as well so I will not go into details about it. I will post what I > have before the conference so that we can discuss her approach and > what was the primary disagreement the last time. I can go into more > ditails as a follow up if people are interested of course. This interests me very much as well. -- 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>