On Mon, Nov 21, 2011 at 2:18 PM, Linus Torvalds torvalds@linux-foundation.org wrote:
On Mon, Nov 21, 2011 at 1:49 PM, Rafael J. Wysocki rjw@sisk.pl wrote:
Subject : hugetlb oops on 3.1.0-rc8-devel Submitter : Andy Lutomirski luto@amacapital.net Date : 2011-11-01 22:20 Message-ID : CALCETrW1mpVCz2tO5roaz1r6vnno+srHR-dHA6_pkRi2qiCfdw@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).
I haven't seen it again, but that probably doesn't mean anything. I've also fixed a bug in some userspace software I was running, and that fix means I'm probably not stressing that part of the kernel anymore. (Even without the fix, it took two weeks to hit this.)