. Thread 4 (process 18427): #0 0xb7f7a410 in __kernel_vsyscall () #1 0xb74d2c07 in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7651e7f in ?? () from /usr/lib/libglib-2.0.so.0 #3 0x080c5d60 in ?? () #4 0x00000002 in ?? () #5 0xffffffff in ?? () #6 0x080c5d60 in ?? () #7 0x00000002 in ?? () #8 0xb76c75f8 in ?? () from /usr/lib/libglib-2.0.so.0 #9 0x080af920 in ?? () #10 0xb6f592c4 in ?? () #11 0x00000001 in ?? () #12 0x00000001 in ?? () #13 0x080c3278 in ?? () #14 0x080c5d60 in ?? () #15 0xb74d2b90 in ?? () from /lib/tls/i686/cmov/libc.so.6 #16 0xb74e9eb0 in ?? () from /lib/tls/i686/cmov/libc.so.6 #17 0xb74e9e70 in ?? () from /lib/tls/i686/cmov/libc.so.6 #18 0xb7550ff4 in ?? () from /lib/tls/i686/cmov/libc.so.6 #19 0xb74e9e70 in ?? () from /lib/tls/i686/cmov/libc.so.6 #20 0xffffffff in ?? () #21 0x7fffffff in ?? () #22 0xb76c7248 in ?? () from /usr/lib/libglib-2.0.so.0 #23 0xb74e9e70 in ?? () from /lib/tls/i686/cmov/libc.so.6 #24 0x080c32f8 in ?? () #25 0xb6f59308 in ?? () #26 0xb76521e7 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 Backtrace stopped: frame did not save the PC . Thread 3 (process 18430): #0 0xb7f7a410 in __kernel_vsyscall () #1 0xb7381aa5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb74e9cdd in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6 #3 0xb7629df2 in ?? () from /usr/lib/libglib-2.0.so.0 #4 0xb5600468 in ?? () #5 0x0812c4f8 in ?? () #6 0xb7f96820 in ?? () #7 0xb7550ff4 in ?? () from /lib/tls/i686/cmov/libc.so.6 #8 0x0812c4d8 in ?? () #9 0x080af8c0 in ?? () #10 0x00000000 in ?? () . Thread 2 (process 18431): #0 0xb7f7a410 in __kernel_vsyscall () #1 0xb7381dd2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb74e9d34 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6 #3 0xb7402077 in ?? () from /usr/lib/libgthread-2.0.so.0 #4 0x0812d770 in ?? () #5 0x0812c538 in ?? () #6 0xb6728278 in ?? () #7 0xb7402191 in ?? () from /usr/lib/libgthread-2.0.so.0 #8 0x0812d770 in ?? () #9 0x00000000 in ?? () . Thread 1 (process 18420): #0 0xb45e97c5 in _nss_wins_gethostbyname_r () from /lib/libnss_wins.so.2 #1 0xb74f46a8 in gethostbyname_r () from /lib/tls/i686/cmov/libc.so.6 #2 0xb5505362 in PR_GetHostByName () from /usr/lib/libnspr4.so.0d #3 0xb4a79c9f in ?? () from /usr/lib/xulrunner-1.9b5/libxul.so #4 0xbfc802d8 in ?? () #5 0xbfc7fed8 in ?? () #6 0x00000400 in ?? () #7 0xbfc7feb0 in ?? () #8 0x00000000 in ?? ()