On Thu 04-10-12 16:19:08, Johannes Weiner wrote: > On Thu, Oct 04, 2012 at 08:49:58PM +0200, Michal Hocko wrote: > > On Thu 04-10-12 14:09:16, Johannes Weiner wrote: > > > page_referenced() counts only references of mm's that are associated > > > with the memcg hierarchy that is being reclaimed. However, if it > > > races with the owner of the mm exiting, mm->owner may be NULL. Don't > > > crash, just ignore the reference. > > > > This seems to be fixed by Hugh's patch 3a981f48 "memcg: fix use_hierarchy > > css_is_ancestor oops regression" which seems to be merged already. > > And look who acked the patch. I'll show myself out... My memory is a bit fuzzy but I remember we had two alternatives and Hugh's won. -- 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>