Date: Wed, 16 May 2007 01:24:54 +0200 From: "Attilio Rao" <attilio@freebsd.org> To: "Stefan Bethke" <stb@lassitu.de> Cc: FreeBSD Current <freebsd-current@freebsd.org>, Andre Oppermann <andre@freebsd.org>, Kris Kennaway <kris@obsecurity.org> Subject: Re: panic: mutex tcp owned at /usr/src/sys/netinet/tcp_input.c:2475 Message-ID: <3bbf2fe10705151624t3f80205o877a1b1fdd27d1c@mail.gmail.com> In-Reply-To: <8909CE68-AFE2-4ED2-AA3B-0242C9FC8274@lassitu.de> References: <97D4D7C1-8FE4-48C1-9604-A567420796D5@lassitu.de> <355DA9CE-F097-46EA-8D37-BA4C27019246@lassitu.de> <20070513222114.GA64807@xor.obsecurity.org> <68AA0B73-75E0-4E20-8AE0-74FB2FB654ED@lassitu.de> <20070513232413.GA65863@xor.obsecurity.org> <C8F48051-6C5A-4BAC-B226-EF1F02F9F051@lassitu.de> <20070514080510.GB71110@xor.obsecurity.org> <47AE9AC9-13D4-45A0-B199-CFB348D9B284@lassitu.de> <4649F194.7070106@FreeBSD.org> <8909CE68-AFE2-4ED2-AA3B-0242C9FC8274@lassitu.de>
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2007/5/15, Stefan Bethke <stb@lassitu.de>: > 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. Stefan, definitively thanks a lot for your efforts. I think that now andre@ has a good number of information in order to investigate. Attilio -- Peace can only be achieved by understanding - A. Einstein
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