. Thread 4 (process 17086): #0 0xffffe405 in __kernel_vsyscall () #1 0xf792df15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib32/libpthread.so.0 #2 0xf6c5dff8 in ?? () #3 0xf6d58438 in ?? () #4 0xf6c5e34d in ?? () #5 0xf79294fb in start_thread () from /lib32/libpthread.so.0 #6 0xf78a308e in clone () from /lib32/libc.so.6 . Thread 3 (process 17087): #0 0xffffe405 in __kernel_vsyscall () #1 0xf792df15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib32/libpthread.so.0 #2 0xf6c5dff8 in ?? () #3 0xf6d58438 in ?? () #4 0xf6c5e34d in ?? () #5 0xf79294fb in start_thread () from /lib32/libpthread.so.0 #6 0xf78a308e in clone () from /lib32/libc.so.6 . Thread 2 (process 17088): #0 0xffffe405 in __kernel_vsyscall () #1 0xf7930175 in sem_wait@@GLIBC_2.1 () from /lib32/libpthread.so.0 #2 0xf6c681a8 in ?? () #3 0xf79294fb in start_thread () from /lib32/libpthread.so.0 #4 0xf78a308e in clone () from /lib32/libc.so.6 . Thread 1 (process 17073): #0 0xf792b540 in pthread_mutex_lock () from /lib32/libpthread.so.0 #1 0xf6d56168 in ?? () #2 0xf6dad582 in ?? () #3 0xf6c57fcd in ?? () #4 0xf6b56548 in ?? () #5 0xf6b52180 in ?? () #6 0xf71e33fa in ?? () #7 0xf7f91c11 in ?? () from /lib/ld-linux.so.2 #8 0xf77f8334 in exit () from /lib32/libc.so.6 #9 0xf7bb8637 in ?? () from /usr/lib32/libgdk-x11-2.0.so.0 #10 0xf79c673e in _XError () from /usr/lib32/libX11.so.6 #11 0xf79cde5c in ?? () from /usr/lib32/libX11.so.6 #12 0xf79ce71f in _XEventsQueued () from /usr/lib32/libX11.so.6 #13 0xf79b79d2 in XPending () from /usr/lib32/libX11.so.6 #14 0xf7baf5cf in ?? () from /usr/lib32/libgdk-x11-2.0.so.0 #15 0xf7bafa6f in ?? () from /usr/lib32/libgdk-x11-2.0.so.0 #16 0xf7ab1bf8 in g_main_context_dispatch () from /usr/lib32/libglib-2.0.so.0 #17 0xf7ab4e5e in ?? () from /usr/lib32/libglib-2.0.so.0 #18 0xf7ab51e7 in g_main_loop_run () from /usr/lib32/libglib-2.0.so.0 #19 0xf7d37264 in gtk_main () from /usr/lib32/libgtk-x11-2.0.so.0 #20 0x0804fbde in ?? () #21 0xf77e0450 in __libc_start_main () from /lib32/libc.so.6 #22 0x0804aba1 in ?? ()