Hi!
tethereal segfaults when I try to use a timed ring buffer, ie:
tethereal -a filesize:1000000 -b 10:60 -i eth0 -w ring.cap
The crash occurs just after the second file is opened:
...
close(4) = 0
munmap(0x4057f000, 4096) = 0
time(NULL) = 1078735706
open("ring_00002_20040308094826.cap", O_RDWR|O_CREAT|O_TRUNC, 0600) = 4
fcntl64(4, F_GETFL) = 0x2 (flags O_RDWR)
fstat64(4, {st_mode=S_IFREG|0600, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4057f000
_llseek(4, 0, [0], SEEK_CUR) = 0
lseek(4, 1, SEEK_CUR) = 1
lseek(4, 0, SEEK_SET) = 0
time(NULL) = 1078735706
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
[root@tzu root]#
The time specified or the filesize does not seem to matter, crashes
occur anyway, as long as the timeout occurs before the filesize limit
is reached.
I've seen this behaviour on the following systems:
RedHat 8.0:
Linux xxx.ipnett.no 2.4.20-28.8 #1 Thu Dec 18 12:53:39 EST 2003 i686
i686 i386 GNU/Linux
tethereal 0.9.16
Compiled with GLib 1.2.10, with libpcap 0.6, with libz 1.1.4,
with Net-SNMP 5.0.9, without ADNS
Running with libpcap (version unknown) on Linux 2.4.20-28.8
Fedora:
Linux yyy.ipnett.no 2.4.20-28.9 #1 Thu Dec 18 13:53:00 EST 2003 i686 i686 i386 GNU/Linux
tethereal 0.10.2
Compiled with GLib 1.2.10, with libpcap 0.7.2, with libz 1.2.0.7,
without libpcre, without UCD-SNMP or Net-SNMP, without ADNS.
NOTE: this build does not support the "matches" operator for Ethereal filter
syntax.
Running with libpcap (version unknown) on Linux 2.4.20-28.9.
And on RedHat Enterprise Linux ES3.0:
Linux zzz 2.4.21-9.ELsmp #1 SMP Thu Jan 8 17:08:56 EST 2004 i686 i686 i386 GNU/Linux
tethereal 0.10.0a
Compiled with GLib 1.2.10, with libpcap 0.7.2, with libz 1.1.4, without libpcre,
with Net-SNMP 5.0.9, without ADNS.
NOTE: this build does not support the "matches" operator
for Ethereal filter syntax.
Running with libpcap (version unknown) on Linux 2.4.21-9.ELsmp
--
Terje Krogdahl
IPnett AS
All roads lead to Rome
- A clearly confused router (R. Perlman)
