.
Thread 6 (process 31641):
#0  0x00002b219e0b9cb6 in poll () from /lib/libc.so.6
#1  0x00002b219c8b31fe in ?? () from /usr/lib/libglib-2.0.so.0
#2  0x00002b219c8b36ba in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#3  0x00002b219ae9e9d3 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#4  0x0000000000419630 in ?? ()
#5  0x00002b219e00cb44 in __libc_start_main () from /lib/libc.so.6
#6  0x000000000040e0b9 in ?? ()
#7  0x00007fff10aca548 in ?? ()
#8  0x0000000000000000 in ?? ()
.
Thread 5 (process 31642):
#0  0x00002b219e0b9cb6 in poll () from /lib/libc.so.6
#1  0x00002b21a47047bd in PR_Poll () from /usr/lib/libnspr4.so.0d
#2  0x00002b21a7bfab76 in ?? () from /usr/lib/firefox/components/libnecko.so
#3  0x00002b21a7bfb2fe in ?? () from /usr/lib/firefox/components/libnecko.so
#4  0x00002b219e3d07dc in ?? () from /usr/lib/firefox/libxpcom_core.so
#5  0x00002b21a47084cd in ?? () from /usr/lib/libnspr4.so.0d
#6  0x00002b219d8c0317 in start_thread () from /lib/libpthread.so.0
#7  0x00002b219e0c2bed in clone () from /lib/libc.so.6
#8  0x0000000000000000 in ?? ()
.
Thread 4 (process 31643):
#0  0x00002b219d8c4997 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00002b21a4702268 in ?? () from /usr/lib/libnspr4.so.0d
#2  0x00002b21a4702e8a in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#3  0x00002b219e3d26a2 in ?? () from /usr/lib/firefox/libxpcom_core.so
#4  0x00002b219e3d07dc in ?? () from /usr/lib/firefox/libxpcom_core.so
#5  0x00002b21a47084cd in ?? () from /usr/lib/libnspr4.so.0d
#6  0x00002b219d8c0317 in start_thread () from /lib/libpthread.so.0
#7  0x00002b219e0c2bed in clone () from /lib/libc.so.6
#8  0x0000000000000000 in ?? ()
.
Thread 3 (process 31644):
#0  0x00002b219e0a9d07 in sched_yield () from /lib/libc.so.6
#1  0x000000000041e997 in ?? ()
#2  0x00002b219c8d1b84 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00002b219d8c0317 in start_thread () from /lib/libpthread.so.0
#4  0x00002b219e0c2bed in clone () from /lib/libc.so.6
#5  0x0000000000000000 in ?? ()
.
Thread 2 (process 31645):
#0  0x00002b219d8c6efb in ?? () from /lib/libpthread.so.0
#1  0x00002b219cb57db6 in setup_man_path () from /usr/lib/librarian.so.0
#2  0x00002b219cb58047 in rrn_man_init () from /usr/lib/librarian.so.0
#3  0x00002b219cb581c7 in rrn_man_for_each_in_category ()
   from /usr/lib/librarian.so.0
#4  0x000000000041f42d in ?? ()
#5  0x00002b219c8d1b84 in ?? () from /usr/lib/libglib-2.0.so.0
#6  0x00002b219d8c0317 in start_thread () from /lib/libpthread.so.0
#7  0x00002b219e0c2bed in clone () from /lib/libc.so.6
#8  0x0000000000000000 in ?? ()
.
Thread 1 (process 31646):
#0  0x00002b219e067a80 in strlen () from /lib/libc.so.6
#1  0x00002b219e0361aa in vfprintf () from /lib/libc.so.6
#2  0x00002b219e0526b9 in vsprintf () from /lib/libc.so.6
#3  0x00002b219e03c398 in sprintf () from /lib/libc.so.6
#4  0x00002b219cb57222 in process_check_file () from /usr/lib/librarian.so.0
#5  0x00002b219cb57395 in process_info_dir () from /usr/lib/librarian.so.0
#6  0x00002b219cb574da in rrn_info_init () from /usr/lib/librarian.so.0
#7  0x00002b219cb576f5 in rrn_info_get_categories ()
   from /usr/lib/librarian.so.0
#8  0x000000000041f0ba in ?? ()
#9  0x00002b219c8d1b84 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x00002b219d8c0317 in start_thread () from /lib/libpthread.so.0
#11 0x00002b219e0c2bed in clone () from /lib/libc.so.6
#12 0x0000000000000000 in ?? ()