From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Jones Subject: Re: 3.5.1 fib_rules_lookup oops Date: Mon, 20 Aug 2012 13:22:40 -0400 Message-ID: <20120820172240.GA378@redhat.com> References: <20120820164428.GA27910@redhat.com> <1345481979.5158.333.camel@edumazet-glaptop> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, Fedora Kernel Team To: Eric Dumazet Return-path: Received: from mx1.redhat.com ([209.132.183.28]:63071 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754044Ab2HTRWp (ORCPT ); Mon, 20 Aug 2012 13:22:45 -0400 Content-Disposition: inline In-Reply-To: <1345481979.5158.333.camel@edumazet-glaptop> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, Aug 20, 2012 at 06:59:39PM +0200, Eric Dumazet wrote: > On Mon, 2012-08-20 at 12:44 -0400, Dave Jones wrote: > > Just had a user report this, which I don't think I've seen reported here yet. > > Something new, or just something missing from -stable ? > > > > Dave > > > > > > BUG: unable to handle kernel paging request at 5f726571 > > IP: [] fib_rules_lookup+0x38/0x130 > > *pdpt = 000000002b8ef001 *pde = 0000000000000000 > > Oops: 0000 [#1] SMP > > It looks like a buffer overflow or memory reuse > > 5f726565 is not a valid pointer, but ASCII "eer_" Yeah. Same user reported a slew of other problems, so he may have bad hardware. I've asked him to run a memtest to rule that out. Dave