.
Thread 8 (LWP 2648):
#0  0xb7784424 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb70e584b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
No locals.
#2  0xb74ff9bc in __pthread_cond_wait (cond=0xafdea88, mutex=0xb0a2bc8) at forward.c:149
        __p = <optimized out>
#3  0xb7189f80 in ?? ()
No symbol table info available.
#4  0x0afdea88 in ?? ()
No symbol table info available.
Cannot access memory at address 0x3