Date: Wed, 16 May 2007 09:41:02 +0200 From: Stefan Bethke <stb@lassitu.de> To: "Attilio Rao" <attilio@freebsd.org> 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: <45FA190B-546E-4B61-9D0B-236E0FD7538F@lassitu.de> In-Reply-To: <3bbf2fe10705151624t3f80205o877a1b1fdd27d1c@mail.gmail.com> 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> <3bbf2fe10705151624t3f80205o877a1b1fdd27d1c@mail.gmail.com>
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Am 16.05.2007 um 01:24 schrieb Attilio Rao: > 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. Happy to help. I should get the serial port today or on friday, and I should be able to give you console and ssh access if you're interested. If you'd like me to test patches, please let me know. Cheers, Stefan -- Stefan Bethke <stb@lassitu.de> Fon +49 170 346 0140
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