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Date:      Fri, 7 Sep 2012 17:14:41 +0400
From:      Gleb Smirnoff <glebius@FreeBSD.org>
To:        Jean-Luc Dupont <jl.dupont@outlook.com>
Cc:        "freebsd-stable@freebsd.org" <freebsd-stable@FreeBSD.org>
Subject:   Re: Kernel Panic on 9.0 and 9.1 with carp on BCE network interface
Message-ID:  <20120907131441.GH44854@FreeBSD.org>
In-Reply-To: <BLU002-W13675B1A1DFD41C3747BC47E0A70@phx.gbl>
References:  <BLU002-W1806B3B97A5781C350A2944E0A70@phx.gbl> <BLU002-W13675B1A1DFD41C3747BC47E0A70@phx.gbl>

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On Thu, Aug 30, 2012 at 02:39:10PM +0000, Jean-Luc Dupont wrote:
J> Sorry, it seems that I didn't put the right backtrace :
J> 
J> #0  doadump (textdump=Variable "textdump" is not available.
J> ) at /usr/src/sys/kern/kern_shutdown.c:271
J> 271                     dumpsys(&dumper);
J> (kgdb) #0  doadump (textdump=Variable "textdump" is not available.
J> ) at /usr/src/sys/kern/kern_shutdown.c:271
J> #1  0xffffffff807fdf02 in kern_reboot (howto=260)
J>     at /usr/src/sys/kern/kern_shutdown.c:448
J> #2  0xffffffff807fe3e3 in panic (fmt=0x104 <Address 0x104 out of bounds>)
J>     at /usr/src/sys/kern/kern_shutdown.c:636
J> #3  0xffffffff80ad2700 in trap_fatal (frame=0xc, eva=Variable "eva" is not available.
J> )
J>     at /usr/src/sys/amd64/amd64/trap.c:857
J> #4  0xffffffff80ad2a3d in trap_pfault (frame=0xffffff82e97a3500, usermode=0)
J>     at /usr/src/sys/amd64/amd64/trap.c:773
J> #5  0xffffffff80ad305e in trap (frame=0xffffff82e97a3500)
J>     at /usr/src/sys/amd64/amd64/trap.c:456
J> #6  0xffffffff80abd67f in calltrap ()
J>     at /usr/src/sys/amd64/amd64/exception.S:228
J> #7  0xffffffff8085f597 in m_copym (m=0x0, off0=1500, len=1480, wait=1)
J>     at /usr/src/sys/kern/uipc_mbuf.c:542
J> #8  0xffffffff8092f2c8 in ip_fragment (ip=0xfffffe00970e0580, 
J>     m_frag=0xffffff82e97a3728, mtu=Variable "mtu" is not available.
J> ) at /usr/src/sys/netinet/ip_output.c:822
J> #9  0xffffffff8092fc17 in ip_output (m=0xfffffe00970e0500, opt=Variable "opt" is not available.
J> )
J>     at /usr/src/sys/netinet/ip_output.c:653
J> #10 0xffffffff80928713 in ip_forward (m=0xfffffe00970e0500, srcrt=Variable "srcrt" is not available.
J> )
J>     at /usr/src/sys/netinet/ip_input.c:1494
J> #11 0xffffffff80929dc8 in ip_input (m=0xfffffe00970e0500)
J>     at /usr/src/sys/netinet/ip_input.c:702

I don't see that this is CARP related. Do you use any firewall: pf or ipfw?

Can you please show the below session in gdb with discussed core file:

gdb> fr 9
gdb> p mtu
gdb> fr 7
gdb> p off
gdb> fr 8
gdb> p m0
gdb> p *m0

-- 
Totus tuus, Glebius.



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