From owner-freebsd-current@FreeBSD.ORG Fri Jan 8 21:38:08 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4A8651065698; Fri, 8 Jan 2010 21:38:08 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from esa-annu.mail.uoguelph.ca (esa-annu.mail.uoguelph.ca [131.104.91.36]) by mx1.freebsd.org (Postfix) with ESMTP id B7D2F8FC14; Fri, 8 Jan 2010 21:38:07 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ApoEAEo0R0uDaFvK/2dsb2JhbADVboQvBA X-IronPort-AV: E=Sophos;i="4.49,244,1262581200"; d="scan'208";a="60526268" Received: from fraser.cs.uoguelph.ca ([131.104.91.202]) by esa-annu-pri.mail.uoguelph.ca with ESMTP; 08 Jan 2010 16:38:06 -0500 Received: from localhost (localhost.localdomain [127.0.0.1]) by fraser.cs.uoguelph.ca (Postfix) with ESMTP id EB08B109C306; Fri, 8 Jan 2010 16:38:05 -0500 (EST) X-Virus-Scanned: amavisd-new at fraser.cs.uoguelph.ca Received: from fraser.cs.uoguelph.ca ([127.0.0.1]) by localhost (fraser.cs.uoguelph.ca [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id g9BQJh8D8GxZ; Fri, 8 Jan 2010 16:38:05 -0500 (EST) Received: from muncher.cs.uoguelph.ca (muncher.cs.uoguelph.ca [131.104.91.102]) by fraser.cs.uoguelph.ca (Postfix) with ESMTP id 7045B109C2CC; Fri, 8 Jan 2010 16:38:05 -0500 (EST) Received: from localhost (rmacklem@localhost) by muncher.cs.uoguelph.ca (8.11.7p3+Sun/8.11.6) with ESMTP id o08Lm4k25174; Fri, 8 Jan 2010 16:48:06 -0500 (EST) X-Authentication-Warning: muncher.cs.uoguelph.ca: rmacklem owned process doing -bs Date: Fri, 8 Jan 2010 16:48:04 -0500 (EST) From: Rick Macklem X-X-Sender: rmacklem@muncher.cs.uoguelph.ca To: =?utf-8?B?RWlyaWsgw5h2ZXJieQ==?= In-Reply-To: <43D0E400-183E-4741-9ABD-14ED80D90983@anduin.net> Message-ID: References: <20091129013026.GA1355@michelle.cdnetworks.com> <74BFE523-4BB3-4748-98BA-71FBD9829CD5@anduin.net> <34AD565D-814A-446A-B9CA-AC16DD762E1B@anduin.net> <1DFC4992-E136-4674-BC0E-A6B1DAE12AF4@anduin.net> <3BC13C71-348A-49AD-94BA-FC28EB0648DE@freebsd.org> <43D0E400-183E-4741-9ABD-14ED80D90983@anduin.net> MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="-559023410-1804928587-1262987284=:24198" Cc: pyunyh@gmail.com, weldon@excelsusphoto.com, freebsd-current@freebsd.org, "Robert N. M. Watson" , Gavin Atkinson Subject: Re: FreeBSD 8.0 - network stack crashes? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jan 2010 21:38:08 -0000 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---559023410-1804928587-1262987284=:24198 Content-Type: TEXT/PLAIN; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE On Fri, 8 Jan 2010, Eirik =C3~Xverby wrote: > > On 8. jan. 2010, at 16.33, Robert N. M. Watson wrote: >> On 30 Nov 2009, at 19:13, Eirik =D8verby wrote: >> >>> I meant NFS-UDP ... However I was wrong even there; Using NFS over UDP = from FreeBSD boxes does not cause the same issue. So OpenBSD seems to be a = special case here. >>> As a data point, I tried to reproduce it here using an OpenBSD4.5 client=20 and wasn't able to see a leak. So it might be only certain versions of OpenBSD or certain network configs or ??? (I used NFSv3 over UDP.) I doubt it, but if the version of OpenBSD you were using happened to use NFSv2 by default with UDP vs NFSv3 for TCP, there is a patch that fixes an mbuf leak, that is specific to NFSv2. However, if you were using NFSv3 over UDP, then this won't be relevant. I can look at a packet trace, but I kinda doubt that it's going to shed light on the cause of the mbuf leak. ("tcpdump -s 0 -w host " should get a packet capture that Wireshark will make sense of.) rick ---559023410-1804928587-1262987284=:24198--