Program received signal SIGPIPE, Broken pipe.
0xffffe410 in __kernel_vsyscall ()
(gdb) bt
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7ec3251 in send () from /lib/libc.so.6
#2  0x0808e589 in flush_message (ip=0x95cc6cc) at comm.c:682
#3  0x08090ecd in get_user_command () at comm.c:1741
#4  0x08091138 in process_user_command () at comm.c:1844
#5  0x08084a8f in backend () at backend.c:161
#6  0x0806b6b2 in main (argc=2, argv=0xbfc09884) at main.c:430
(gdb)