.
Thread 5 (process 6893):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb6fe14d7 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7e8639b in PR_Poll () from /usr/lib/libnspr4.so.0d
#3  0xb65123c7 in ?? () from /usr/lib/firefox/components/libnecko.so
#4  0x08350fd8 in ?? ()
#5  0x00000001 in ?? ()
#6  0xffffffff in ?? ()
#7  0xb6511d7c in ?? () from /usr/lib/firefox/components/libnecko.so
#8  0x08350af0 in ?? ()
#9  0x00000001 in ?? ()
#10 0xc9e6b348 in ?? ()
#11 0xb659fcb0 in ?? () from /usr/lib/firefox/components/libnecko.so
#12 0xffffffff in ?? ()
#13 0x08350af0 in ?? ()
#14 0xb5584388 in ?? ()
#15 0xb6512bc5 in ?? () from /usr/lib/firefox/components/libnecko.so
#16 0x08350af0 in ?? ()
#17 0xb5584378 in ?? ()
#18 0x00000001 in ?? ()
#19 0xb7e744ff in PR_SetThreadPrivate () from /usr/lib/libnspr4.so.0d
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
.
Thread 4 (process 6908):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7163dd2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7e83805 in ?? () from /usr/lib/libnspr4.so.0d
#3  0x081ff084 in ?? ()
#4  0x082008e8 in ?? ()
#5  0xb3ebb32c in ?? ()
#6  0xb71648c5 in pthread_getspecific ()
   from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb7e84631 in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#8  0xb6ee1c7f in ?? () from /usr/lib/firefox/libxpcom_core.so
#9  0x081ff080 in ?? ()
#10 0x00000051 in ?? ()
#11 0x082008e8 in ?? ()
#12 0xb6f139c8 in ?? () from /usr/lib/firefox/libxpcom_core.so
#13 0x08f8d050 in ?? ()
#14 0x00000000 in ?? ()
.
Thread 3 (process 11812):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7163aa5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7e846c1 in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#3  0xb6337bad in ?? () from /usr/lib/firefox/components/libpipnss.so
#4  0x0b07f5d0 in ?? ()
#5  0xffffffff in ?? ()
#6  0x0b5504e0 in ?? ()
#7  0x0b0f14d8 in ?? ()
#8  0x00000001 in ?? ()
#9  0xaa7d838b in ?? ()
#10 0x00000004 in ?? ()
#11 0xb7e93558 in ?? () from /usr/lib/libnspr4.so.0d
#12 0x081ff5a8 in ?? ()
#13 0x00000000 in ?? ()
.
Thread 2 (process 11813):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7163aa5 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7e846c1 in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#3  0xb6338983 in ?? () from /usr/lib/firefox/components/libpipnss.so
#4  0x0b07f838 in ?? ()
#5  0xffffffff in ?? ()
#6  0x00000000 in ?? ()
.
Thread 1 (process 6876):
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7167d30 in raise () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb7eb0c26 in ?? () from /usr/lib/firefox/libgtkembedmoz.so
#3  0x0000000b in ?? ()
#4  0xbfba1f3c in ?? ()
#5  0x00000000 in ?? ()