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Date:      Thu, 5 Jul 2001 15:04:25 +0800
From:      Mars G Miro <mars@cannoncreek.com>
To:        freebsd-stable@freebsd.org
Subject:   tcpdump dumps core 
Message-ID:  <01070515042500.04302@hellraiser.cannoncreek.com>

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Hi All,
	I was playing around with tcpdump:
	# tcpdump -nlvv
	when it dumped core:
	# gdb tcpdump tcpdump.core
GNU gdb 4.18
Copyright 1998 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 conditions.
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-unknown-freebsd"...(no debugging symbols 
found)...
Core was generated by `tcpdump'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libpcap.so.2...(no debugging symbols 
found)...done.
Reading symbols from /usr/lib/libcrypto.so.2...(no debugging symbols 
found)...done.
Reading symbols from /usr/lib/libc.so.4...(no debugging symbols found)...done.
Reading symbols from /usr/libexec/ld-elf.so.1...(no debugging symbols 
found)...done.
#0  0x806cbb2 in free ()
(gdb) bt
#0  0x806cbb2 in free ()
#1  0xbfbff794 in ?? ()
#2  0x806d736 in free ()
#3  0x8066971 in free ()
#4  0x8066f7e in free ()
#5  0x8067221 in free ()
#6  0x806a744 in free ()
#7  0x80559a3 in free ()
#8  0x8052bd2 in free ()
#9  0x80529ea in free ()
#10 0x280a8c59 in pcap_read () from /usr/lib/libpcap.so.2
#11 0x280a88ff in pcap_loop () from /usr/lib/libpcap.so.2
#12 0x804a0a1 in free ()
#13 0x804989d in free ()

	This happened thrice already, but what caused it, I think was a huge file 
transfer. The machine is also running Samba:

Dialect=Error! ASCIIZ buffer of type 0 (safety=14)

Dialect=Error! ASCIIZ buffer of type 5 (safety=12)

Dialect=Error! ASCIIZ buffer of type 0 (safety=9)

Dialect=Error! ASCIIZ buffer of type 3 (safety=3)
<some more garbage>
smbbuf[]=
ServiceType=Segmentation fault (core dumped)


	This is on RELENG_4_3



cheers
mars

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