From owner-freebsd-current@FreeBSD.ORG Tue May 15 19:46:54 2007 Return-Path: X-Original-To: freebsd-current@FreeBSD.org Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E21C816A400; Tue, 15 May 2007 19:46:54 +0000 (UTC) (envelope-from stb@lassitu.de) Received: from koef.zs64.net (koef.zs64.net [212.12.50.230]) by mx1.freebsd.org (Postfix) with ESMTP id 73F6913C44C; Tue, 15 May 2007 19:46:54 +0000 (UTC) (envelope-from stb@lassitu.de) Received: (from stb@koef.zs64.net) (authenticated) by koef.zs64.net (8.14.1/8.14.1) with ESMTP id l4FJkqap026535 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Tue, 15 May 2007 21:46:52 +0200 (CEST) (envelope-from stb@lassitu.de) In-Reply-To: <4649F194.7070106@FreeBSD.org> References: <97D4D7C1-8FE4-48C1-9604-A567420796D5@lassitu.de> <4644D331.9080901@freebsd.org> <5729FCC6-7CD5-4D26-B075-9D517B9A06D5@lassitu.de> <3bbf2fe10705131245y276af14as53f3839e62024473@mail.gmail.com> <355DA9CE-F097-46EA-8D37-BA4C27019246@lassitu.de> <20070513222114.GA64807@xor.obsecurity.org> <68AA0B73-75E0-4E20-8AE0-74FB2FB654ED@lassitu.de> <20070513232413.GA65863@xor.obsecurity.org> <20070514080510.GB71110@xor.obsecurity.org> <47AE9AC9-13D4-45A0-B199-CFB348D9B284@lassitu.de> <4649F194.7070106@FreeBSD.org> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <8909CE68-AFE2-4ED2-AA3B-0242C9FC8274@lassitu.de> Content-Transfer-Encoding: 7bit From: Stefan Bethke Date: Tue, 15 May 2007 21:46:51 +0200 To: attilio@FreeBSD.org X-Mailer: Apple Mail (2.752.2) Cc: FreeBSD Current , Andre Oppermann , Kris Kennaway Subject: Re: panic: mutex tcp owned at /usr/src/sys/netinet/tcp_input.c:2475 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: Tue, 15 May 2007 19:46:55 -0000 Am 15.05.2007 um 19:44 schrieb Attilio Rao: > I've seen exactly what I expected (a leaked recursion on > 0xffffff002ae8dbd8 mutex (that I suspect is "TCP"). > Since none of us can do on-line debugging in your machine, can you > please download that patch, apply it, recompile your kernel and > doing these tests again?: > http://users.gufi.org/~rookie/works/patches/kern_mutex.diff > > It will give a good understanding of where the recursion happens > and where probabilly expected unrecursion fails. Uploaded the ktrdump to http://www.lassitu.de/freebsd/20070510/ ktrdump-20070515a.txt.gz, the matching backtrace is at http:// www.lassitu.de/freebsd/20070510/kgdb-20070515a.txt. BTW, I'm having terrible trouble getting the dumps to be picked up by savecore; four times out of five it says there isn't one, although the dump completed seemingly without problems. I've tried disabling swapping to the dump partition and switching off minidumps to no avail. Stefan -- Stefan Bethke Fon +49 170 346 0140