From owner-freebsd-net@FreeBSD.ORG Wed May 13 04:51:50 2009 Return-Path: Delivered-To: freebsd-net@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 350FE1065676; Wed, 13 May 2009 04:51:50 +0000 (UTC) (envelope-from delphij@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 23EFB8FC24; Wed, 13 May 2009 04:51:50 +0000 (UTC) (envelope-from delphij@FreeBSD.org) Received: from freefall.freebsd.org (delphij@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n4D4povt024555; Wed, 13 May 2009 04:51:50 GMT (envelope-from delphij@freefall.freebsd.org) Received: (from delphij@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n4D4pnOX024551; Wed, 13 May 2009 04:51:49 GMT (envelope-from delphij) Date: Wed, 13 May 2009 04:51:49 GMT Message-Id: <200905130451.n4D4pnOX024551@freefall.freebsd.org> To: av@holymail.biz, delphij@FreeBSD.org, freebsd-net@FreeBSD.org, delphij@FreeBSD.org From: delphij@FreeBSD.org Cc: Subject: Re: kern/134486: [tcp] Wrong MSS in outgoing packets for non-default (1460) MSS 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: Wed, 13 May 2009 04:51:50 -0000 Synopsis: [tcp] Wrong MSS in outgoing packets for non-default (1460) MSS State-Changed-From-To: open->closed State-Changed-By: delphij State-Changed-When: Wed May 13 04:49:34 UTC 2009 State-Changed-Why: This is known issue, a possible workaround would be to disable TSO on fxp(4). A true fix is to apply this patch: # cd /tmp # fetch -o fxp.tso.patch "http://svn.freebsd.org/viewvc/base/head/sys/dev/fxp/if_fxp.c?r1=190982&r2=188176&view=patch" # cd /usr/src/sys/dev/fxp # patch -p4 < /tmp/fxp.tso.patch Rebuild, install kernel and reboot. Responsible-Changed-From-To: freebsd-net->delphij Responsible-Changed-By: delphij Responsible-Changed-When: Wed May 13 04:49:34 UTC 2009 Responsible-Changed-Why: Take so I can receive further information if this was wrongly closed. http://www.freebsd.org/cgi/query-pr.cgi?pr=134486