.
Thread 1 (Thread 1640):
#0  0x000000000040440c in listen_greeter (buffer=0x7fff61d1c6e8, buflen=0x7fff61d1c6d8, end=0x7fff61d1c6e0) at ldmgreetercomm.c:124
        ge = 0x0
#1  0x0000000000404455 in ask_value_greeter (cmd=0x405246 "value backend\n") at ldmgreetercomm.c:158
        len = 0
        end = 0
        buffer = <value optimized out>
#2  0x0000000000403248 in main (argc=<value optimized out>, argv=<value optimized out>) at ldm.c:185
        rfd = 11
        wfd = 10
        rfd2 = 9
        wfd2 = 8
        auth_plugin = 0x0
        action = {__sigaction_handler = {sa_handler = 0x404720 <handle_sigchld>, sa_sigaction = 0x404720 <handle_sigchld>}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 4, sa_restorer = 0}