On Wed, 2 Nov 2011, Andy Lutomirski wrote: > > --- a/mm/hugetlb.c Sat Aug 13 11:45:14 2011 > > +++ b/mm/hugetlb.c Wed Nov 2 20:12:00 2011 > > @@ -2422,6 +2422,8 @@ retry_avoidcopy: > > * anon_vma prepared. > > */ > > if (unlikely(anon_vma_prepare(vma))) { > > + page_cache_release(new_page); > > + page_cache_release(old_page); > > /* Caller expects lock to be held */ > > spin_lock(&mm->page_table_lock); > > return VM_FAULT_OOM; > > > > I'll patch it in. My test case took over a week to hit it once, so I > can't guarantee I'll spot it. > This patch was merged and released in 3.2-rc3 as ea4039a34c4c ("hugetlb: release pages in the error path of hugetlb_cow()"), Andy is this issue fixed for you?