From owner-freebsd-net@FreeBSD.ORG Fri Jun 15 20:50:21 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 30600106566C; Fri, 15 Jun 2012 20:50:21 +0000 (UTC) (envelope-from mike@sentex.net) Received: from smarthost1.sentex.ca (smarthost1-6.sentex.ca [IPv6:2607:f3e0:0:1::12]) by mx1.freebsd.org (Postfix) with ESMTP id E0D148FC0A; Fri, 15 Jun 2012 20:50:20 +0000 (UTC) Received: from [192.168.43.26] (pyroxene.sentex.ca [199.212.134.18]) by smarthost1.sentex.ca (8.14.5/8.14.4) with ESMTP id q5FKoHHM089897; Fri, 15 Jun 2012 16:50:17 -0400 (EDT) (envelope-from mike@sentex.net) Message-ID: <4FDBA00A.7010502@sentex.net> Date: Fri, 15 Jun 2012 16:50:18 -0400 From: Mike Tancsa Organization: Sentex Communications User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Gleb Smirnoff References: <4DB47CE1.8@frasunek.com> <4DB487D2.7030104@rdtc.ru> <4DB48B76.8050101@frasunek.com> <4DB49109.3050002@frasunek.com> <20110425050548.GF34767@glebius.int.ru> <4DBBBAD8.2000705@frasunek.com> <20110513162311.GK95084@glebius.int.ru> <4DD298AD.2060905@frasunek.com> <20110517184613.GN74366@glebius.int.ru> <4FDB1D71.6050908@freebsd.lublin.pl> <20120615203142.GW28613@glebius.int.ru> In-Reply-To: <20120615203142.GW28613@glebius.int.ru> X-Enigmail-Version: 1.4.2 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.72 on 64.7.153.18 Cc: Przemyslaw Frasunek , Eugene Grosbein , freebsd-net@freebsd.org Subject: Re: mpd5/Netgraph issues after upgrading to 7.4 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jun 2012 20:50:21 -0000 On 6/15/2012 4:31 PM, Gleb Smirnoff wrote: > On Fri, Jun 15, 2012 at 01:33:05PM +0200, Przemyslaw Frasunek wrote: > P> unfortunately, one of my mpd5 PPPoE access servers started panicing every few > P> hours. > P> > P> I'm running recent 8.3-STABLE (as of 23th May) with WITNESS, INVARIANTS and > I suspect this isn't related to netgraph, but to IPv6 since prelist_remove() > is found in netinet6/nd6_rtr.c. > > Several times I looked into ND code and found lots of race prone code there. > May be some was recently fixed by bz@, but definitely not merged to stable/8. There were a bunch of commits / fixes by BZ on the 5th of June. Perhaps try updating to RELENG_8 as of today. If you are not using IPv6, perhaps disable for a day to see if that makes a difference stability wise ? It did for me back in Nov when running with v6 on an LNS was not stable. http://lists.freebsd.org/pipermail/svn-src-stable-8/2012-June/007555.html ---Mike > -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/