Date: Sat, 6 Aug 2005 19:24:03 +0200 From: Max Laier <max@love2party.net> To: freebsd-pf@freebsd.org Subject: Re: pf causes freeze of amd64 machine on heavy network load Message-ID: <200508061924.10927.max@love2party.net> In-Reply-To: <42F4F0CB.8050306@cs.tu-berlin.de> References: <42F4F0CB.8050306@cs.tu-berlin.de>
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--nextPart1346261.3xF0BsS1vi Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Saturday 06 August 2005 19:18, Bj=F6rn K=F6nig wrote: > Hello, > > recently I sent a mail to the current mailing list concerning this > problem, but I figured out that my problem is related to pf. > > I have an amd64 machine with 6.0-BETA2 that freezes totally on heavy > network I/O with activated pf. I noticed that it doesn't occur with > every ruleset. > > This is the output of dmesg; note the KDB backtraces during the attempt > to load pf.ko and system shutdown: > > http://212.202.37.29/dateien/dmesg.txt > > The following ruleset is neither complete nor optimized; I stopped > working on it when I noticed that pf doesn't work for me: > > http://212.202.37.29/dateien/pf.conf.txt > > Unfortunately the time-frame where I can make tests concerning this > issue is from now until Monday. I hope someone is able to reproduce the > error to make further investigations. =46rom pf.conf(5): BUGS Due to a lock order reversal (LOR) with the socket layer, the use of t= he group and user filter parameter in conjuction with a Giant-free netsta= ck can result in a deadlock. If you have to use group or user you must s= et debug.mpsafenet to ``0'' from the loader(8), for the moment. This wor= k- around will still produce the LOR, but Giant will protect from the dea= d- lock. I am afraid this is what bites you. =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 --nextPart1346261.3xF0BsS1vi Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQBC9PI6XyyEoT62BG0RAsnPAJ4g2p9Pvnmh5ry7xmBqdRPhsvpPRQCeOOCR TD6vmcGKDSHOmHsF6E8PCiA= =ynIk -----END PGP SIGNATURE----- --nextPart1346261.3xF0BsS1vi--
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