From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: Bug, kernel panic, NULL dereference , cleanup_once / icmp_route_lookup.clone.19.clone / nat , 2.6.39-rc7-git11 Date: Wed, 18 May 2011 13:44:07 +0200 Message-ID: <1305719047.2991.4.camel@edumazet-laptop> References: <54ec5cd14e5e5c76aa06c2e6899299ce@visp.net.lb> <41a1892fed59b411bb08d3ecb0d8cda5@visp.net.lb> <1305711471.2983.27.camel@edumazet-laptop> <0a630bbf006d1210220a6ba4d55c5804@visp.net.lb> <1305713111.2991.1.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: netdev@vger.kernel.org To: Denys Fedoryshchenko Return-path: Received: from mail-fx0-f46.google.com ([209.85.161.46]:46970 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932763Ab1ERLoL (ORCPT ); Wed, 18 May 2011 07:44:11 -0400 Received: by fxm17 with SMTP id 17so1119778fxm.19 for ; Wed, 18 May 2011 04:44:10 -0700 (PDT) In-Reply-To: <1305713111.2991.1.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: Le mercredi 18 mai 2011 =C3=A0 12:05 +0200, Eric Dumazet a =C3=A9crit : > Le mercredi 18 mai 2011 =C3=A0 12:53 +0300, Denys Fedoryshchenko a =C3= =A9crit : >=20 > > Yes, i will try. I should enable SLUB debugging only, or also anyt= hing=20 > > else? > >=20 > > But possible it will take time to reproduce bug, seems it is occur= ing=20 > > rare. With 2.6.39 release i will rollout update to few hundreds PP= PoE's,=20 > > maybe it will increase chances to get information. > >=20 >=20 > I would try both : slub_debug=3DZFP slub_nomerge >=20 > or maybe only slub_debug=3DZFPU >=20 > Thanks ! >=20 Hmm, do you have both ipv6/ipv4 trafic on your machine by any chance ?