gdb /usr/sbin/asterisk (gdb) set args -vvvgc (gdb) run ... ... ... -- Channel SIP/5001-00000000 joined 'softmix' base-bridge <8a6bd852-0c62-4d36-bbb2-33bc40cd97ad> warning: The VAD has been replaced by a hack pending a complete rewrite warning: The VAD has been replaced by a hack pending a complete rewrite -- Playing 'confbridge-join.gsm' (language 'en') Thread 86 "asterisk" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fff9718d700 (LWP 11135)] 0x00000000005308d1 in ast_format_get_type (format=0x0) at format.c:396 396 return format->codec->type; (gdb) where #0 0x00000000005308d1 in ast_format_get_type (format=0x0) at format.c:396 #1 0x00000000004c33dd in ast_write_stream (chan=0x7fffe00403b8, stream_num=-1, fr=0x7fffe00dfd80) at channel.c:5226 #2 0x00000000004c3237 in ast_write (chan=0x7fffe00403b8, fr=0x7fffe00dfd80) at channel.c:5197 #3 0x000000000048b78e in bridge_channel_handle_write (bridge_channel=0x7fffd400c928) at bridge_channel.c:2348 #4 0x000000000048be87 in bridge_channel_wait (bridge_channel=0x7fffd400c928) at bridge_channel.c:2624 #5 0x000000000048c5ed in bridge_channel_internal_join (bridge_channel=0x7fffd400c928) at bridge_channel.c:2759 #6 0x0000000000471976 in ast_bridge_join (bridge=0x7fffd4004eb8, chan=0x7fffe00403b8, swap=0x0, features=0x7fff9718a3a8, tech_args=0x7fff9718a3d0, flags=(unknown: 0)) at bridge.c:1712 #7 0x00007fffc480996a in confbridge_exec (chan=0x7fffe00403b8, data=0x7fff9718a550 "3000") at app_confbridge.c:2368 #8 0x00000000005a2390 in pbx_exec (c=0x7fffe00403b8, app=0xe46b20, data=0x7fff9718a550 "3000") at pbx_app.c:482 #9 0x000000000058e502 in pbx_extension_helper (c=0x7fffe00403b8, con=0x0, context=0x7fffe0040d88 "default", exten=0x7fffe0040dd8 "3000", priority=1, label=0x0, callerid=0x7fffe01b99f0 "5001", action= E_SPAWN, found=0x7fff9718cbec, combined_find_spawn=1) at pbx.c:2924 #10 0x00000000005920de in ast_spawn_extension (c=0x7fffe00403b8, context=0x7fffe0040d88 "default", exten=0x7fffe0040dd8 "3000", priority=1, callerid=0x7fffe01b99f0 "5001", found=0x7fff9718cbec, combined_find_spawn=1) at pbx.c:4155 #11 0x0000000000592d17 in __ast_pbx_run (c=0x7fffe00403b8, args=0x0) at pbx.c:4327 #12 0x000000000059443a in pbx_thread (data=0x7fffe00403b8) at pbx.c:4647 #13 0x0000000000627322 in dummy_start (data=0x7fffe0096d80) at utils.c:1254 #14 0x00007ffff5afa6ca in start_thread () at /usr/lib64/libpthread.so.0 #15 0x00007ffff4c05f6f in clone () at /usr/lib64/libc.so.6 (gdb) p *fr $16 = {frametype = AST_FRAME_VOICE, subclass = {integer = 0, format = 0x0, frame_ending = 0}, datalen = 0, samples = 0, mallocd = 1, mallocd_hdr_len = 531, offset = 64, src = 0x0, data = { ptr = 0xd802b7b2, uint32 = 3624056754, pad = "\262\267\002\330\000\000\000"}, delivery = { tv_sec = 0, tv_usec = 0}, frame_list = {next = 0x0}, flags = 0, ts = 0, len = 0, seqno = 0}