From owner-freebsd-stable@FreeBSD.ORG Wed Jan 14 01:56:52 2004 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 15B5816A4D4 for ; Wed, 14 Jan 2004 01:56:52 -0800 (PST) Received: from smta11.mail.ozemail.net (smta11.mail.ozemail.net [203.103.165.150]) by mx1.FreeBSD.org (Postfix) with ESMTP id 601B143D2F for ; Wed, 14 Jan 2004 01:56:50 -0800 (PST) (envelope-from robbyrnes@ozemail.com.au) Received: from cartman.ozemail.com.au ([203.61.125.43]) by smta11.mail.ozemail.net with ESMTP <20040114095601.RQHC332.smta11.mail.ozemail.net@cartman.ozemail.com.au>; Wed, 14 Jan 2004 09:56:01 +0000 Message-Id: <6.0.1.1.2.20040114205232.02382008@127.0.0.1> X-Sender: pop.ozemail.com.au/110/robbyrnes@127.0.0.1 (Unverified) X-Mailer: QUALCOMM Windows Eudora Version 6.0.1.1 Date: Wed, 14 Jan 2004 20:56:38 +1100 To: Dmitry Morozovsky , stable@freebsd.org From: Rob B In-Reply-To: <20040113181214.C95352@woozle.rinet.ru> References: <20040113181214.C95352@woozle.rinet.ru> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Subject: Re: /kernel: ipfw: pullup failed X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Jan 2004 09:56:52 -0000 At 02:19 AM 14/01/2004, Dmitry Morozovsky wrote: >Dear colleagues, > >for last couple of hours I've encountered random TCP packets drops (most >visible as ssh sessions lockups) and random kernel messages about "pullup >failed" > >marck@gw-f:~> netstat -m >1051/1584/32768 mbufs in use (current/peak/max): > 1050 mbufs allocated to data > 1 mbufs allocated to packet headers >1047/1582/16384 mbuf clusters in use (current/peak/max) >3560 Kbytes allocated to network (8% of mb_map in use) >0 requests for memory denied >0 requests for memory delayed >0 calls to protocol drain routines > >Quick googling shows me >http://www.mail-archive.com/freebsd-net@freebsd.org/msg10291.html which >has not >been answered by luigi I've seen this happening as well, since you don't appeaer to be low on mbufs ... (from the ipfw man page:) "There are circumstances where fragmented datagrams are uncondition- ally dropped. TCP packets are dropped if they do not contain at least 20 bytes of TCP header, UDP packets are dropped if they do not contain a full 8 byte UDP header, and ICMP packets are dropped if they do not contain 4 bytes of ICMP header, enough to specify the ICMP type, code, and checksum. These packets are simply logged as ``pullup failed'' since there may not be enough good data in the packet to produce a meaningful log entry." Cheers, Rob -- He lived in such a low room he could only eat pancakes. This is random quote 549 of 1254. Distance from the centre of the brewing universe [15200.8 km (8207.8 mi), 262.8 deg](Apparent) Rennerian Public Key fingerprint = 6219 33BD A37B 368D 29F5 19FB 945D C4D7 1F66 D9C5