Date: Mon, 01 Jul 2002 07:39:06 +0200 From: Michael Nottebrock <michaelnottebrock@gmx.net> To: Bill Huey <billh@gnuppy.monkey.org> Cc: freebsd-current@freebsd.org Subject: Re: Post-KSE desaster Message-ID: <3D1FEAFA.4090500@gmx.net> References: <3D1FE483.4010002@gmx.net> <20020701053056.GA1907@gnuppy.monkey.org>
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Bill Huey wrote:
> Try "info threads" in gdb and then progressively walking through the thread
> list with "thread N", N being the thread number.
(...)
Program received signal SIGSEGV, Segmentation fault.
0x281cc918 in _thread_kern_sched_state_unlock () from /usr/lib/libc_r.so.5
(gdb) info thread
3 Process 14606, Thread 3 0x281cbd4e in _thread_kern_sched ()
from /usr/lib/libc_r.so.5
2 Process 14606, Thread 2 0x281cbd4e in _thread_kern_sched ()
from /usr/lib/libc_r.so.5
* 1 Process 14606, Thread 1 0x281cc918 in
_thread_kern_sched_state_unlock ()
from /usr/lib/libc_r.so.5
(gdb) thread 1
[Switching to thread 1 (Process 14606, Thread 1)]#0 0x281cc918 in
_thread_kern_sched_state_unlock () from /usr/lib/libc_r.so.5
(gdb) bt
#0 0x281cc918 in _thread_kern_sched_state_unlock () from
/usr/lib/libc_r.so.5
#1 0x281cc2e2 in _thread_kern_scheduler () from /usr/lib/libc_r.so.5
#2 0xd0d0d0d0 in ?? ()
#3 0x080570b0 in ?? ()
(gdb) thread 2
[Switching to thread 2 (Process 14606, Thread 2)]#0 0x281cbd4e in
_thread_kern_sched () from /usr/lib/libc_r.so.5
(gdb) bt
#0 0x281cbd4e in _thread_kern_sched () from /usr/lib/libc_r.so.5
#1 0x281cc502 in _thread_kern_sched_state_unlock () from
/usr/lib/libc_r.so.5
#2 0x281ced1d in pthread_cond_timedwait () from /usr/lib/libc_r.so.5
#3 0x281c58f2 in _thread_gc () from /usr/lib/libc_r.so.5
#4 0x281c4f31 in _thread_start () from /usr/lib/libc_r.so.5
(gdb) thread 3
[Switching to thread 3 (Process 14606, Thread 3)]#0 0x281cbd4e in
_thread_kern_sched () from /usr/lib/libc_r.so.5
(gdb) bt
#0 0x281cbd4e in _thread_kern_sched () from /usr/lib/libc_r.so.5
#1 0x281cc49d in _thread_kern_sched_state () from /usr/lib/libc_r.so.5
#2 0x281c60ff in _write () from /usr/lib/libc_r.so.5
#3 0x281c6187 in write () from /usr/lib/libc_r.so.5
#4 0x2828ccc2 in ao_plugin_play () from
/usr/local/lib/ao/plugins-2/liboss.so
#5 0x280b4f8d in ao_play () from /usr/local/lib/libao.so.3
#6 0x08049bed in free ()
#7 0x0804a9a1 in free ()
#8 0x0804a066 in free ()
#9 0x281c4f31 in _thread_start () from /usr/lib/libc_r.so.5
As a comparison, artsd:
[lofi@kiste]:0:~ > gdb artsd
GNU gdb 5.2.0 (FreeBSD) 20020627
Copyright 2002 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-undermydesk-freebsd"...
(no debugging symbols found)...
(gdb) run
Starting program: /usr/local/bin/artsd
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
unix_connect: can't connect to server
(unix:/tmp/mcop-lofi/kiste_localdomain-01c2-3d1fe3ca)
There are already artsd objects registered, looking if they are active...
... cleaned 5 unused mcop global references.
(no debugging symbols found)...(no debugging symbols found)...
Program received signal SIGSEGV, Segmentation fault.
0x28424918 in _thread_kern_sched_state_unlock () from /usr/lib/libc_r.so.5
(gdb) info thread
* 1 Process 15847, Thread 1 0x28424918 in
_thread_kern_sched_state_unlock ()
from /usr/lib/libc_r.so.5
(gdb) bt
#0 0x28424918 in _thread_kern_sched_state_unlock () from
/usr/lib/libc_r.so.5
#1 0x284242e2 in _thread_kern_scheduler () from /usr/lib/libc_r.so.5
#2 0xd0d0d0d0 in ?? ()
Regards,
--
Michael Nottebrock
"The circumstance ends uglily in the cruel result." - Babelfish
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