.
Thread 4 (process 23510):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7d7684c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7da4093 in ?? () from /usr/lib/libnspr4.so
#3  0x08088734 in ?? ()
#4  0x08084140 in ?? ()
#5  0xb67c030c in ?? ()
#6  0xb7d771b5 in pthread_getspecific ()
   from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7da4ed1 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#8  0xb7e4b4c6 in ?? () from /usr/lib/firefox/libxpcom_core.so
#9  0x08088730 in ?? ()
#10 0x00000166 in ?? ()
#11 0xb67c0378 in ?? ()
#12 0xb7e48c5d in ?? () from /usr/lib/firefox/libxpcom_core.so
#13 0x00000001 in ?? ()
#14 0x08088698 in ?? ()
#15 0x08084140 in ?? ()
#16 0xb7e7d940 in ?? () from /usr/lib/firefox/libxpcom_core.so
#17 0x08130298 in ?? ()
#18 0x081302a4 in ?? ()
#19 0xb67c0398 in ?? ()
#20 0xb7e491cb in ?? () from /usr/lib/firefox/libxpcom_core.so
#21 0x08088670 in ?? ()
#22 0x00000000 in ?? ()
.
Thread 3 (process 23515):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7737893 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7da6c29 in PR_Poll () from /usr/lib/libnspr4.so
#3  0xb7dad62d in ?? () from /usr/lib/libnspr4.so
#4  0xb4b5c2fc in ?? ()
#5  0x00000001 in ?? ()
#6  0xffffffff in ?? ()
#7  0x00000000 in ?? ()
.
Thread 2 (process 6961):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7d7684c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7da4093 in ?? () from /usr/lib/libnspr4.so
#3  0x085913fc in ?? ()
#4  0x08591398 in ?? ()
#5  0xb077f32c in ?? ()
#6  0xb7d771b5 in pthread_getspecific ()
   from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7da4ed1 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#8  0xb708f585 in ?? () from /usr/lib/firefox/components/libnecko.so
#9  0x085913f8 in ?? ()
#10 0x0000ea60 in ?? ()
#11 0xb077f398 in ?? ()
#12 0x08591388 in ?? ()
#13 0x08591388 in ?? ()
#14 0x33c9bb12 in ?? ()
#15 0x08591398 in ?? ()
#16 0xb7db3554 in ?? () from /usr/lib/libnspr4.so
#17 0x09aed7d8 in ?? ()
#18 0x00000001 in ?? ()
#19 0xb077f3b8 in ?? ()
#20 0xb7daae9d in ?? () from /usr/lib/libnspr4.so
#21 0x08591368 in ?? ()
#22 0x09aed7d8 in ?? ()
#23 0xb77aeff4 in ?? () from /lib/tls/i686/cmov/libc.so.6
#24 0xb7d80ff4 in ?? () from /lib/tls/i686/cmov/libpthread.so.0
#25 0x00000000 in ?? ()
.
Thread 1 (process 23504):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7d7a4f1 in raise () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x08057836 in ?? ()
#3  0x0000000b in ?? ()
#4  0xbfa01d4c in ?? ()
#5  0x00000000 in ?? ()