On 04/02/2013 06:16 PM, Michal Hocko wrote: > mem_cgroup_css_online > memcg_init_kmem > mem_cgroup_get # refcnt = 2 > memcg_update_all_caches > memcg_update_cache_size # fails with ENOMEM Here is the thing: this one in kmem only happens for kmem enabled memcgs. For those, we tend to do a get once, and put only when the last kmem reference is gone. For non-kmem memcgs, refcnt will be 1 here, and will be balanced out by the mem_cgroup_put() in css_free. -- 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>