On Mon 21-11-11 14:18:29, Linus Torvalds wrote: > On Mon, Nov 21, 2011 at 1:49 PM, Rafael J. Wysocki <rjw at sisk.pl> wrote: > > > > Subject ? ?: hugetlb oops on 3.1.0-rc8-devel > > Submitter ?: Andy Lutomirski <luto at amacapital.net> > > Date ? ? ? : 2011-11-01 22:20 > > Message-ID : CALCETrW1mpVCz2tO5roaz1r6vnno+srHR-dHA6_pkRi2qiCfdw at > > mail.gmail.com > > References : http://marc.info/?l=linux-kernel&m=132018604426692&w=2 > > Despite the subject line, that's not an oops, it's a BUG_ON(). > > And it *should* be fixed by commit ea4039a34c4c ("hugetlb: release > pages in the error path of hugetlb_cow()") although I don't think Andy > ever confirmed that (since it was hard to trigger).
AFAICS the issue has been introduced by 0fe6e20b (hugetlb, rmap: add reverse mapping for hugepage) in 2.6.36-rc1 so this is a stable material. I do not see the patch in any stable branch so here we go. The patch is on top of 3.0.y branch and it applies as is to 3.1.y as well. ---
