#0  0xf6fddded in pthread_mutex_lock () from /lib32/libpthread.so.0
No symbol table info available.
#1  0xf63c9543 in ?? ()
No symbol table info available.
#2  0xf5ee9c3d in ?? ()
No symbol table info available.
#3  0xf6fdb80e in start_thread () from /lib32/libpthread.so.0
No symbol table info available.
#4  0xf6f4292e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.