.
Thread 8 (process 6752):
#0  0x00007fc02f10ac76 in poll () from /lib/libc.so.6
#1  0x00007fc036766450 in PR_Poll () from /usr/lib/libnspr4.so.0d
#2  0x00007fc0294026a6 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#3  0x00007fc029402d29 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#4  0x00007fc029402f67 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#5  0x00007fc029b43d5d in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#6  0x00007fc029b18181 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#7  0x00007fc029403298 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#8  0x00007fc029b43db2 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#9  0x00007fc029b18181 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#10 0x00007fc029b4412c in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#11 0x00007fc03676a1ca in ?? () from /usr/lib/libnspr4.so.0d
#12 0x00007fc0306523f7 in start_thread () from /lib/libpthread.so.0
#13 0x00007fc02f113b2d in clone () from /lib/libc.so.6
#14 0x0000000000000000 in ?? ()
.
Thread 7 (process 6755):
#0  0x00007fc030656e1d in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007fc036763e29 in ?? () from /usr/lib/libnspr4.so.0d
#2  0x00007fc036764a5a in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#3  0x00007fc029b46b12 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#4  0x00007fc029b43db2 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#5  0x00007fc029b18181 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#6  0x00007fc029b4412c in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#7  0x00007fc03676a1ca in ?? () from /usr/lib/libnspr4.so.0d
#8  0x00007fc0306523f7 in start_thread () from /lib/libpthread.so.0
#9  0x00007fc02f113b2d in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()
.
Thread 6 (process 6756):
#0  0x00007fc030656b99 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007fc036764aec in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#2  0x00007fc029953dd9 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#3  0x00007fc03676a1ca in ?? () from /usr/lib/libnspr4.so.0d
#4  0x00007fc0306523f7 in start_thread () from /lib/libpthread.so.0
#5  0x00007fc02f113b2d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 5 (process 6757):
#0  0x00007fc030656b99 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007fc036764aec in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#2  0x00007fc029954660 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#3  0x00007fc03676a1ca in ?? () from /usr/lib/libnspr4.so.0d
#4  0x00007fc0306523f7 in start_thread () from /lib/libpthread.so.0
#5  0x00007fc02f113b2d in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()
.
Thread 4 (process 6771):
#0  0x00007fc030656b99 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007fc036764aec in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#2  0x00007fc036764b56 in PR_Wait () from /usr/lib/libnspr4.so.0d
#3  0x00007fc029b43072 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#4  0x00007fc029b43d8b in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#5  0x00007fc029b18181 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#6  0x00007fc029b4412c in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#7  0x00007fc03676a1ca in ?? () from /usr/lib/libnspr4.so.0d
#8  0x00007fc0306523f7 in start_thread () from /lib/libpthread.so.0
#9  0x00007fc02f113b2d in clone () from /lib/libc.so.6
#10 0x0000000000000000 in ?? ()
.
Thread 3 (process 7165):
#0  0x00007fc030656e1d in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007fc036763e29 in ?? () from /usr/lib/libnspr4.so.0d
#2  0x00007fc036764a5a in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#3  0x00007fc02940bcc7 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#4  0x00007fc02940bd86 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#5  0x00007fc03676a1ca in ?? () from /usr/lib/libnspr4.so.0d
#6  0x00007fc0306523f7 in start_thread () from /lib/libpthread.so.0
#7  0x00007fc02f113b2d in clone () from /lib/libc.so.6
#8  0x0000000000000000 in ?? ()
.
Thread 2 (process 7168):
#0  0x00007fc030656e1d in pthread_cond_timedwait@@GLIBC_2.3.2 ()
   from /lib/libpthread.so.0
#1  0x00007fc036763e29 in ?? () from /usr/lib/libnspr4.so.0d
#2  0x00007fc036764a5a in PR_WaitCondVar () from /usr/lib/libnspr4.so.0d
#3  0x00007fc036764b56 in PR_Wait () from /usr/lib/libnspr4.so.0d
#4  0x00007fc029b4562b in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#5  0x00007fc029b43db2 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#6  0x00007fc029b18181 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#7  0x00007fc029b4412c in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#8  0x00007fc03676a1ca in ?? () from /usr/lib/libnspr4.so.0d
#9  0x00007fc0306523f7 in start_thread () from /lib/libpthread.so.0
#10 0x00007fc02f113b2d in clone () from /lib/libc.so.6
#11 0x0000000000000000 in ?? ()
.
Thread 1 (process 6751):
#0  0x00007fc03065a69b in raise () from /lib/libpthread.so.0
#1  0x00007fc0293b0f26 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#2  <signal handler called>
#3  0x00007fc029b6f1dc in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#4  0x00007fc029b7bf37 in gfxXlibNativeRenderer::Draw ()
   from /usr/lib/xulrunner-1.9/libxul.so
#5  0x00007fc02954fd8d in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#6  0x00007fc02954fe00 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#7  0x00007fc029551ae1 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#8  0x00007fc02954170a in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#9  0x00007fc0294f9454 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#10 0x00007fc0294faeb0 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#11 0x00007fc0294f9454 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#12 0x00007fc0295081cf in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#13 0x00007fc02950eccd in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#14 0x00007fc02973f1a4 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#15 0x00007fc02973f4be in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#16 0x00007fc02973fbd8 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#17 0x00007fc02973afb7 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#18 0x00007fc029a88439 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#19 0x00007fc029a82764 in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#20 0x00007fc029a8508c in ?? () from /usr/lib/xulrunner-1.9/libxul.so
#21 0x00007fc03352b87f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#22 0x00007fc02fe04bcf in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#23 0x00007fc02fe186bc in ?? () from /usr/lib/libgobject-2.0.so.0
#24 0x00007fc02fe19de6 in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#25 0x00007fc02fe1a483 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#26 0x00007fc033632e55 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#27 0x00007fc033525a92 in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#28 0x00007fc03317acab in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#29 0x00007fc03317b2c7 in gdk_window_process_all_updates ()
   from /usr/lib/libgdk-x11-2.0.so.0
#30 0x00007fc03349bda1 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#31 0x00007fc03316289e in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#32 0x00007fc02fb6f262 in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#33 0x00007fc02fb72516 in ?? () from /usr/lib/libglib-2.0.so.0
#34 0x00007fc02fb727d7 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#35 0x00007fc033525f03 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#36 0x0000000000439eae in main ()