Return-path: Received: from mail-vw0-f46.google.com ([209.85.212.46]:49678 "EHLO mail-vw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755349Ab1KUW3Z convert rfc822-to-8bit (ORCPT ); Mon, 21 Nov 2011 17:29:25 -0500 MIME-Version: 1.0 In-Reply-To: References: <201111212249.31196.rjw@sisk.pl> From: Andy Lutomirski Date: Mon, 21 Nov 2011 14:29:02 -0800 Message-ID: (sfid-20111121_232953_246574_E8A52006) Subject: Re: 3.2-rc2+: Reported regressions from 3.0 and 3.1 To: Linus Torvalds Cc: "Rafael J. Wysocki" , Linux Kernel Mailing List , Maciej Rutecki , Florian Mickler , Andrew Morton , Kernel Testers List , Network Development , Linux ACPI , Linux PM List , Linux SCSI List , Linux Wireless List , DRI Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Nov 21, 2011 at 2:18 PM, Linus Torvalds wrote: > On Mon, Nov 21, 2011 at 1:49 PM, Rafael J. Wysocki wrote: >> >> Subject ? ?: hugetlb oops on 3.1.0-rc8-devel >> Submitter ?: Andy Lutomirski >> 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.)