Date: Mon, 17 Nov 2003 11:53:02 +0100 From: Andreas Kohn <andreas.kohn@gmx.net> To: Max Laier <max@love2party.net> Cc: current@freebsd.org Subject: Re: Panic in ip_input Message-ID: <20031117115302.4e215fe9.andreas.kohn@gmx.net> In-Reply-To: <4212255218.20031117090256@love2party.net> References: <1069053107.706.10.camel@klamath> <4212255218.20031117090256@love2party.net>
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On Mon, 17 Nov 2003 09:02:56 +0100 Max Laier <max@love2party.net> wrote: > Hello Andreas, > > Monday, November 17, 2003, 8:11:47 AM, you wrote: > AK> #7 0xc05ed8a9 in ip_input (m=0x0) at > AK> /usr/src/sys/netinet/ip_input.c:364 > AK> #8 0xc05e6292 in div_output (so=0xc2f11d20, m=0xc16d6600, > AK> sin=0xc2d834b0, > AK> control=0x0) at /usr/src/sys/netinet/ip_divert.c:364 > > AK> (kgdb) frame 7 > AK> #7 0xc05ed8a9 in ip_input (m=0x0) at > AK> /usr/src/sys/netinet/ip_input.c:364 > AK> 364 m_free(m0); > AK> (kgdb) p m0 > AK> $1 = (struct mbuf *) 0x0 > AK> (kgdb) l > AK> 359 > AK> 360 m0 = m; > AK> 361 m = m->m_next; > AK> 362 /* XXX: This is set by ip_fastforward */ > AK> 363 if (m0->m_nextpkt == (struct mbuf *)1) > AK> 364 m_free(m0); > AK> 365 } > AK> 366 > AK> 367 M_ASSERTPKTHDR(m); > AK> 368 > > > AK> This panic is relatively easy to recreate. > > AK> Some data points: > > AK> The machine is an Athlon Thunderbird 1200 (CPUTYPE=athlon-tbird in > AK> make.conf), the NIC is a Realtek 8139. > AK> net.inet.ip.fastforwarding is 0. > > AK> I have a dump available (256M). What can I do to help fix this problem? > > What rev. of ip_input.c is this? Looks like head. Rev. 1.253 mangled > the for(;;) in a strange way and added that very strange check ... can > somebody just kill these bastard MT_TAG thing in flavour for real > mbuf_tags, now? Please! > > -- > Best regards, > Max mailto:max@love2party.net > Hi, It should be ip_input.c 1.255 (can't check now), and I will try the rev 1.256 as soon as I return to that machine. Thanks, Andreas
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