Date: Fri, 28 Nov 2003 17:34:17 -0000 From: Robert Watson <rwatson@freebsd.org> To: Pawel Jakub Dawidek <nick@garage.freebsd.pl> Cc: freebsd-current@freebsd.org Subject: Re: Panic: if_simloop: attempted use of a free mbuf! Message-ID: <Pine.NEB.3.96L.1031128122957.11498d-100000@fledge.watson.org> In-Reply-To: <20031128083538.GL76130@garage.freebsd.pl>
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Silby's patch to fix this was approved by re@ this morning, should go into the tree shortly. Basically, the assertion is slightly too agressive as some callers into BPF "mock up" mbufs to hold data submitted to BPF. No doubt this will get cleaned up, but in the mean time the fix is simply to remove the assertion. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Network Associates Laboratories On Fri, 28 Nov 2003, Pawel Jakub Dawidek wrote: > Hello. > > I'm reaching assertion from /sys/net/if_loop.c:270. > > This is very easy to reproduce: > > First you need to put loopback into promiscuous mode: > > # tcpdump -i lo0 > > Then try to connect to loopback, for example: > > # telnet 127.0.0.1 22 > > Enjoy!:) > > -- > Pawel Jakub Dawidek pawel@dawidek.net > UNIX Systems Programmer/Administrator http://garage.freebsd.pl > Am I Evil? Yes, I Am! http://cerber.sourceforge.net >
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