.
Thread 3 (process 5570):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb77a5893 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e14c29 in PR_Poll () from /usr/lib/libnspr4.so
#3  0xb5de66db in ?? () from /usr/lib/firefox/components/libnecko.so
#4  0x08127330 in ?? ()
#5  0x00000001 in ?? ()
#6  0xffffffff in ?? ()
#7  0xb7e184b8 in PR_GetCurrentThread () from /usr/lib/libnspr4.so
#8  0xb5de6f15 in ?? () from /usr/lib/firefox/components/libnecko.so
#9  0x08126e48 in ?? ()
#10 0xb5a84368 in ?? ()
#11 0xb5a84358 in ?? ()
#12 0xb7e0320f in PR_SetThreadPrivate () from /usr/lib/libnspr4.so
#13 0xb7eb01cb in ?? () from /usr/lib/firefox/libxpcom_core.so
#14 0x08126e48 in ?? ()
#15 0x00000001 in ?? ()
#16 0x00000001 in ?? ()
#17 0xb7e21554 in ?? () from /usr/lib/libnspr4.so
#18 0x081276b8 in ?? ()
#19 0x00000000 in ?? ()
.
Thread 2 (process 5571):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7de484c in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7e12093 in ?? () from /usr/lib/libnspr4.so
#3  0x08084cac in ?? ()
#4  0x08084ea8 in ?? ()
#5  0xb528330c in ?? ()
#6  0xb7de51b5 in pthread_getspecific ()
   from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7e12ed1 in PR_WaitCondVar () from /usr/lib/libnspr4.so
#8  0xb7eb24c6 in ?? () from /usr/lib/firefox/libxpcom_core.so
#9  0x08084ca8 in ?? ()
#10 0x00001388 in ?? ()
#11 0xb5283378 in ?? ()
#12 0xb7eafc5d in ?? () from /usr/lib/firefox/libxpcom_core.so
#13 0x00000001 in ?? ()
#14 0x08084c10 in ?? ()
#15 0x08084ea8 in ?? ()
#16 0xb7ee4940 in ?? () from /usr/lib/firefox/libxpcom_core.so
#17 0x0813f330 in ?? ()
#18 0x0813f33c in ?? ()
#19 0xb5283398 in ?? ()
#20 0xb7eb01cb in ?? () from /usr/lib/firefox/libxpcom_core.so
#21 0x08084be8 in ?? ()
#22 0x00000000 in ?? ()
.
Thread 1 (process 5554):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7de84f1 in raise () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x08057836 in ?? ()
#3  0x0000000b in ?? ()
#4  0xbfee3e5c in ?? ()
#5  0x00000000 in ?? ()