Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759896Ab3CGWDu (ORCPT ); Thu, 7 Mar 2013 17:03:50 -0500 Received: from mx1.redhat.com ([209.132.183.28]:34996 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754356Ab3CGWDt (ORCPT ); Thu, 7 Mar 2013 17:03:49 -0500 Date: Thu, 7 Mar 2013 17:03:33 -0500 From: Dave Jones To: Linus Torvalds Cc: Linux Kernel , Al Viro , David Miller Subject: Re: ipc/testmsg GPF. Message-ID: <20130307220333.GA31039@redhat.com> Mail-Followup-To: Dave Jones , Linus Torvalds , Linux Kernel , Al Viro , David Miller References: <20130307213819.GB19543@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1646 Lines: 38 On Thu, Mar 07, 2013 at 01:45:27PM -0800, Linus Torvalds wrote: > Adding Davem to the list, since this looks like networking. > > That said, I'm also starting to wonder if you're just triggering odd > bugs because of some use-after-free corruption of random kernel data > structures? Plausible. The sheer volume of crashes I've started seeing in the last 24 hours since adding those small features to trinity are making me really suspicious. If I had this volume of crashes reported to me by a Fedora user, I'd be suspecting their hardware ;) Tangentally related: We have a *ton* of weird bug reports against Fedora that have been open for a while that look like random memory corruption (linked list corruption, 'bad page table' scribbles etc). I'd *love* to think that the bugs I'm now seeing are related, on the off-chance we can finally get some resolution on those. > I seem to have a dim memory of you usually doing your > trinity runs with more debugging options, but based on just the oops > message you don't have DEBUG_PAGEALLOC enabled, for example. Maybe > that and SLUB debugging might turn up the culprit more quickly.. My kernel-hacker hive-mind implant is working. Just started a rebuild with that enabled. Had slub debug already. > [ Just checked - yes, you often do have DEBUG_PAGEALLOC in your oops > reports, but not this time. list debugging too? ] Yep. Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/