execve() slower in the system with falcon modules

Issue

• Executing an application takes longer than usual.
• strace shows high delay in execve() with below test.

    if (pid == -1) {
        DEBUG(DEBUG_ERR, ("vfork() failed (%s)\n", strerror(errno)));
        return -1;
    }

    if (pid == 0) {
        execv(binary_to_call, argv); 
        _exit(1);
    }

    delta_t = timeval_elapsed(&before);
    if (delta_t > 3.0) {
        DEBUG(DEBUG_WARNING, ("vfork() took %lf seconds\n", delta_t));
    }