From owner-freebsd-pf@FreeBSD.ORG Thu Jun 14 17:42:15 2007 Return-Path: X-Original-To: freebsd-pf@freebsd.org Delivered-To: freebsd-pf@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 47B4816A46C for ; Thu, 14 Jun 2007 17:42:15 +0000 (UTC) (envelope-from max@love2party.net) Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.171]) by mx1.freebsd.org (Postfix) with ESMTP id CDA8013C447 for ; Thu, 14 Jun 2007 17:42:14 +0000 (UTC) (envelope-from max@love2party.net) Received: from [88.64.177.78] (helo=amd64.laiers.local) by mrelayeu.kundenserver.de (node=mrelayeu1) with ESMTP (Nemesis), id 0MKwpI-1HytKW2gs8-000469; Thu, 14 Jun 2007 19:42:07 +0200 From: Max Laier Organization: FreeBSD To: freebsd-pf@freebsd.org Date: Thu, 14 Jun 2007 19:43:25 +0200 User-Agent: KMail/1.9.6 References: <200706140833.50583.rmiranda@digitalrelay.ca> <46715C7F.4060602@vwsoft.com> <200706141056.15453.rmiranda@digitalrelay.ca> In-Reply-To: <200706141056.15453.rmiranda@digitalrelay.ca> X-Face: ,,8R(x[kmU]tKN@>gtH1yQE4aslGdu+2]; R]*pL,U>^H?)gW@49@wdJ`H<=?utf-8?q?=25=7D*=5FBD=0A=09U=5For=3D=5CmOZf764=26nYj=3DJYbR1PW0ud?=>|!~,,CPC.1-D$FG@0h3#'5"k{V]a~.<=?utf-8?q?mZ=7D44=23Se=7Em=0A=09Fe=7E=5C=5DX5B=5D=5Fxj?=(ykz9QKMw_l0C2AQ]}Ym8)fU MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1432492.4PuehGltGc"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200706141943.32931.max@love2party.net> X-Provags-ID: V01U2FsdGVkX1+DsYKiStoFJvIU+ashamWSTeDz6Si+yW3+oHZ 1wDROmSn56k6G6N93H6dKelGJWxTEyIhcLVNlSahZXDhAearIg XnTjW9SgUNgKOlNYnFcWw== Cc: Volker Subject: Re: PF error message looping on screen. System Locked. X-BeenThere: freebsd-pf@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Technical discussion and general questions about packet filter \(pf\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jun 2007 17:42:15 -0000 --nextPart1432492.4PuehGltGc Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thursday 14 June 2007, Roger Miranda wrote: > > I don't think this message is related to your trouble. I think you > > can also avoid these messages by adding 'no scrub' to your pf.conf > > (I'm currently not aware of any side effects by adding this). > > I did add it. > > > Probably Max has some more suggestions on not scrubbing packets. > > > > You should get a debugger into your kernel (like Max suggested) > > The debugger is in the kernel. I can break to it during normal > operation. Except when these messages are loop through the screen. > > > and > > probably also use `pfctl -x loud' or `pfctl -x misc' to get more > > messages out of pf. If these messages are popping up again, break the > > system into the debugger and look for the messages (using 'scroll > > lock' to scroll back some pages), ps and a backtrace. > > I have set debug to loud. > > I found this after I rebooted in dmesg: > ---------------------------------------------------- > > pf_reassemble: complete: 0xc4338100(1504) > pf_normalize_ip: reass frag 39811 @ 0-1480 > pf_normalize_ip: reass frag 39811 @ 1480-1484 > pf_reassemble: 1484 < 1484? That's a configuration problem. Something seems to assume a MTU of 1484=20 while there really is a bottleneck with only 1480 which leads to heavy=20 fragmentation. You should find the offender and reduce its MTU. If=20 those messages show up, you did not use "no scrub" however. =2D-=20 /"\ Best regards, | mlaier@freebsd.org \ / Max Laier | ICQ #67774661 X http://pf4freebsd.love2party.net/ | mlaier@EFnet / \ ASCII Ribbon Campaign | Against HTML Mail and News --nextPart1432492.4PuehGltGc Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.3 (FreeBSD) iD8DBQBGcX5EXyyEoT62BG0RAjnqAJ9Is/q/MyR8Ze9YlZVUeCVPXFfPQACfTORB ivBYv9gIjFCNaYq1qjNuipI= =0sIq -----END PGP SIGNATURE----- --nextPart1432492.4PuehGltGc--