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From: Andriy Tkachuk <ant@emict.com>
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Date: Fri, 3 Jun 2005 13:15:04 +0300
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Subject: pthreaded program killed by sigsegv from time to time under load
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hi folks. what can be the reason of $subj ?

is the problem with libpthread or with my prog?

thanks.

> gdb client client.core
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 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-marcel-freebsd"...

warning: exec file is newer than core file.
Core was generated by `client'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libpthread.so.1...done.
Loaded symbols for /usr/lib/libpthread.so.1
Reading symbols from /usr/lib/libstdc++.so.4...done.
Loaded symbols for /usr/lib/libstdc++.so.4
Reading symbols from /lib/libm.so.3...done.
Loaded symbols for /lib/libm.so.3
Reading symbols from /lib/libc.so.5...done.
Loaded symbols for /lib/libc.so.5
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x280ac31b in pthread_testcancel () from /usr/lib/libpthread.so.1
(gdb) bt
#0  0x280ac31b in pthread_testcancel () from /usr/lib/libpthread.so.1
#1  0x280a4902 in pthread_mutexattr_init () from /usr/lib/libpthread.so.1
#2  0x00000000 in ?? ()
(gdb) > uname -a
FreeBSD ant 5.4-RELEASE-p1 FreeBSD 5.4-RELEASE-p1 #3: Wed May 18 09:08:16 EEST 2005     ant@ant:/lin/fbsd_obj/usr/src/sys/ANT  i386