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Date:      Fri, 10 Dec 2004 13:00:51 +1030
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        freebsd-current@freebsd.org
Cc:        sam@errno.com
Subject:   Recent ifconfig changes choke on fwip
Message-ID:  <200412101301.06484.doconnor@gsoft.com.au>

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[inchoate 12:55] /usr/src/sbin/ifconfig >gdb /usr/obj/usr/src/sbin/ifconfig=
/ifconfig
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain condition=
s.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-marcel-freebsd"...
(gdb) run
Starting program: /usr/obj/usr/src/sbin/ifconfig/ifconfig
bfe0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=3D8<VLAN_MTU>
        inet 203.31.81.38 netmask 0xffffffc0 broadcast 203.31.81.63
        ether 00:0d:56:b3:99:6e
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
fwip0: flags=3D108802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        lladdr 43.4f.c0.0.8.17.a4.38.a.2.ff.fe.0.0.0.0

Program received signal SIGSEGV, Segmentation fault.
0x0804b2f9 in in_status (s=3D7, info=3D0x8058134) at /usr/src/sbin/ifconfig=
/af_inet.c:69
69              printf("\tinet %s ", inet_ntoa(sin->sin_addr));
(gdb) print sin->sin_addr
Error accessing memory address 0x102: Bad address.
(gdb) bt
#0  0x0804b2f9 in in_status (s=3D7, info=3D0x8058134) at /usr/src/sbin/ifco=
nfig/af_inet.c:69

fwip is the IP over Firewire interface.

I tried to do some tracing in GDB the line numbers don't seem to match up=20
properly :-/

=2D-=20
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

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