Mine

(gdb) run -c /etc/postfix-policyd.conf
Starting program: /usr/src/postfix-policyd-1.82/policyd -c /etc/postfix-policyd.conf
[Thread debugging using libthread_db enabled]
[New Thread -1212184896 (LWP 25593)]
[tcsetpgrp failed in terminal_inferior: Operation not permitted]

Program received signal SIGSEGV, Segmentation fault.
[Switching to process 25595]
0x0804b288 in policy_reply (fd=11, code=-2, status=0) at generic.c:1224
1224	    buf_write(fd, postfix_blacklist, strlen(postfix_blacklist));
(gdb) bt
#0  0x0804b288 in policy_reply (fd=11, code=-2, status=0) at generic.c:1224
#1  0x0804a327 in chk_pol (fd=11) at policyd.c:444
#2  0x0804ab8b in main (argc=Cannot access memory at address 0xffffffff
) at policyd.c:234