On Thu 15-08-13 16:46:00, Michal Hocko wrote: > On Thu 15-08-13 15:40:31, Michal Hocko wrote: > > On Thu 15-08-13 05:02:31, Linus Torvalds wrote: > > > On Thu, Aug 15, 2013 at 2:25 AM, Ben Tebulin <tebulin@xxxxxxxxxxxxxx> wrote: > > > > > > > > I just cherry-picked e6c495a96ce0 into 3.9.11 and 3.7.10. > > > > Unfortunately this does _not resolve_ my issue (too good to be true) :-( > > > > > > Ho humm. I've found at least one other bug, but that one only affects > > > hugepages. Do you perhaps have transparent hugepages enabled? But even > > > then it looks quite unlikely. > > > > __unmap_hugepage_range is hugetlb not THP if you had that one in mind. > > And yes, it doesn't set the range which sounds buggy. > > Or, did you mean tlb_remove_page called from zap_huge_pmd? That one > should be safe as tlb_remove_pmd_tlb_entry sets need_flush and that > means that the full range is flushed. Dohh... But we need need_flush_all and that is not set here. So this really looks buggy. -- 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>