Any ideas? Anyone having success on this platform? Minimal ser.cfg => http://pastebin.ca/45075 gdb ser /ser.core => http://pastebin.ca/45076 (excert below) #0 0x00000008006c5cc3 in __error () from /usr/lib/libpthread.so.2 #1 0x00000008006b8ec6 in _pthread_mutex_trylock () from /usr/lib/libpthread.so.2 #2 0x00000008006ba3e9 in pthread_mutex_lock () from /usr/lib/libpthread.so.2 #3 0x0000000800bfec73 in reply_received () from /usr/local/lib/ser/modules/tm.so #4 0x00000000004115b1 in forward_reply () ser1# uname -mrs FreeBSD 6.0-RELEASE-p4 amd64 ser1# ser -V version: ser 0.9.3 (amd64/freebsd) flags: STATS: Off, USE_IPV6, USE_TCP, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, USE_PTHREAD_MUTEX MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535 @(#) $Id: main.c,v 1.197 2004/12/03 19:09:31 andrei Exp $ main.c compiled on 15:22:58 Mar 9 2006 with gcc 3.4 partial debug output from log_stderror=yes 4(66703) After parse_msg... 4(66703) forward_reply: found module tm, passing reply to it 4(66703) DEBUG: t_check: msg id=1 global id=0 T start=0xffffffffffffffff 4(66703) parse_headers: flags=17 4(66703) parse_headers: flags=4 4(66703) DEBUG: t_reply_matching: hash 11892 label 200433279 branch 0 4(66703) DEBUG: t_reply_matching: reply matched (T=0x801241cb0)! 4(66703) DEBUG: t_check: msg id=1 global id=1 T end=0x801241cb0 4(66703) DEBUG: reply_received: org. status uas=100, uac[0]=0 local=0 is_invite=1) 23(66722) DBG: tcp_main_loop: dead child 4 (shutting down?) 0(66699) child process 66703 exited by a signal 11 0(66699) core was generated 0(66699) INFO: terminating due to SIGCHLD 17(66716) INFO: signal 15 received 17(66716) Memory status (pkg): 17(66716) qm_status (0x5bdf60): 17(66716) heap size= 1005488 17(66716) used= 14064, used+overhead=61312, free=944176 17(66716) max used (+overhead)= 61760 17(66716) dumping all alloc'ed. fragments: