some backtraces from gdb

firefox_bug (text/plain), 4.34 KB, created by Niko Efthymiou on 2008-11-22 12:45:41 UTC

$ gdb -p 5887
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu".
Attaching to process 5887
Reading symbols from /opt/firefox/firefox-bin...(no debugging symbols found)...d
one.

[....]

0xb80b054c in __pthread_mutex_lock (
    mutex=0xb641a484) at pthread_mutex_lock.c:86
86      pthread_mutex_lock.c: No such file or directory.
        in pthread_mutex_lock.c
(gdb) backtrace
#0  0xb80b054c in __pthread_mutex_lock (mutex=0xb641a484)
    at pthread_mutex_lock.c:86
#1  0xb6d82291 in IA__g_main_context_prepare (context=0xb641a480, 
    priority=0xbfbf586c) at gmain.c:2466
#2  0xb6d826da in g_main_context_iterate (context=0xb641a480, block=0, 
    dispatch=1, self=0xb64142b0) at gmain.c:2758
#3  0xb6d82bb1 in IA__g_main_context_iteration (context=0xb641a480, 
    may_block=0) at gmain.c:2841
#4  0xb7c9171c in ?? () from /opt/firefox/libxul.so
#5  0x00000000 in ?? ()

Program received signal SIGSTOP, Stopped (signal).
[Switching to Thread 0xb656f930 (LWP 5887)]
__i686.get_pc_thunk.bx ()
    at /var/tmp/portage/sys-libs/glibc-2.8_p20080602/temp/cca0vBya.s:110
110     /var/tmp/portage/sys-libs/glibc-2.8_p20080602/temp/cca0vBya.s: No such f
ile or directory.
        in /var/tmp/portage/sys-libs/glibc-2.8_p20080602/temp/cca0vBya.s
Current language:  auto; currently asm
(gdb) stop
(gdb) break
Breakpoint 1 at 0xb80ad233: file /var/tmp/portage/sys-libs/glibc-2.8_p20080602/t
emp/cca0vBya.s, line 110.
(gdb) bt
#0  __i686.get_pc_thunk.bx ()
    at /var/tmp/portage/sys-libs/glibc-2.8_p20080602/temp/cca0vBya.s:110
#1  0xb80b1bbc in __pthread_mutex_unlock_usercnt (mutex=0xb6418514, decr=1)
    at pthread_mutex_unlock.c:31
#2  0xb738b610 in PR_Unlock () from /opt/firefox/libnspr4.so
#3  0xb738b7c6 in PR_ExitMonitor () from /opt/firefox/libnspr4.so
#4  0xb7d66ee7 in ?? () from /opt/firefox/libxul.so
#5  0xb6418510 in ?? ()
#6  0xb2049fa8 in ?? ()
#7  0x00000000 in ?? ()
(gdb) cont
Continuing.

Program received signal SIGSTOP, Stopped (signal).
__i686.get_pc_thunk.bx ()
    at /var/tmp/portage/sys-libs/glibc-2.8_p20080602/temp/cca0vBya.s:110
110     in /var/tmp/portage/sys-libs/glibc-2.8_p20080602/temp/cca0vBya.s
(gdb) cont
Continuing.

(gdb) bt
#0  __i686.get_pc_thunk.bx ()
    at /var/tmp/portage/sys-libs/glibc-2.8_p20080602/temp/cca0vBya.s:110
#1  0xb80b1bbc in __pthread_mutex_unlock_usercnt (mutex=0xb640ffe0, decr=1)
    at pthread_mutex_unlock.c:31
#2  0xb738b610 in PR_Unlock () from /opt/firefox/libnspr4.so
#3  0xb7d6b4d0 in ?? () from /opt/firefox/libxul.so
#4  0xb640ffe0 in ?? ()
#5  0xb3243cd0 in ?? ()
#6  0xb4fff2a8 in ?? ()
#7  0xb7d6b463 in ?? () from /opt/firefox/libxul.so
#8  0xb64ff8f0 in ?? ()
#9  0xb6421564 in ?? ()
#10 0xb640ffe0 in ?? ()
#11 0xb8074668 in ?? () from /opt/firefox/libxul.so
#12 0xb64abce0 in ?? ()
#13 0x00000000 in ?? ()

(gdb) cont
Continuing.

Program received signal SIGCONT, Continued.
[Switching to Thread 0xb59ffb90 (LWP 5891)]
0xffffe424 in __kernel_vsyscall ()
(gdb) cont
Continuing.

Program received signal SIGSTOP, Stopped (signal).
[Switching to Thread 0xb656f930 (LWP 5887)]
0xb739507d in _PR_x86_AtomicDecrement () from /opt/firefox/libnspr4.so
(gdb) bt
#0  0xb739507d in _PR_x86_AtomicDecrement () from /opt/firefox/libnspr4.so
#1  0xb737d66d in PR_AtomicDecrement () from /opt/firefox/libnspr4.so
#2  0xb738b351 in ?? () from /opt/firefox/libnspr4.so
#3  0xb64dfef4 in ?? ()
#4  0x00000000 in ?? ()
(gdb) cont
Continuing.

Program received signal SIGCONT, Continued.
[Switching to Thread 0xb59ffb90 (LWP 5891)]
0xffffe424 in __kernel_vsyscall ()
(gdb) cont
Continuing.

Program received signal SIGSTOP, Stopped (signal).
[Switching to Thread 0xb656f930 (LWP 5887)]
0xffffe424 in __kernel_vsyscall ()
(gdb) bt
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6ab6517 in *__GI___poll (fds=0xb2756500, nfds=8, timeout=0)
    at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb6d82882 in g_main_context_iterate (context=0xb641a480, block=0, 
    dispatch=1, self=0xb64142b0) at gmain.c:3091
#3  0xb6d82bb1 in IA__g_main_context_iteration (context=0xb641a480, 
    may_block=0) at gmain.c:2841
#4  0xb7c9171c in ?? () from /opt/firefox/libxul.so
#5  0x00000000 in ?? ()