latest master version of rtpengine crashed in my websocket tests when handling offer. gdb and debug is below. -- juha --------------------------------------------------------------------------- (gdb) where #0 0x0000000000421670 in sdp_replace (chop=0x7f00ec001ed0, sessions=0x40, sessions@entry=0x7f00ff6692e0, monologue=0x7f00ec087540, flags=0x7f00ec019220) at sdp.c:2019 #1 0x000000000042764e in call_offer_answer_ng (input=input@entry=0x7f00ec002478, m=0xd74200, output=output@entry=0x7f00ec002418, opmode=opmode@entry=OP_OFFER, addr=addr@entry=0x7f00ff6695c0 "127.0.0.1:53157", sin=sin@entry=0x7f00ff6695a0) at call_interfaces.c:710 #2 0x0000000000429b0d in call_offer_ng (input=input@entry=0x7f00ec002478, m=<optimized out>, output=output@entry=0x7f00ec002418, addr=addr@entry=0x7f00ff6695c0 "127.0.0.1:53157", sin=sin@entry=0x7f00ff6695a0) at call_interfaces.c:737 #3 0x000000000041c9b6 in control_ng_incoming (obj=0xd76830, buf=<optimized out>, sin=0x7f00ff6695a0, addr=0x7f00ff6695c0 "127.0.0.1:53157") at control_ng.c:143 #4 0x000000000041bcb0 in udp_listener_incoming (fd=7, p=0xd732a0, x=<optimized out>) at udp_listener.c:52 #5 0x000000000041062e in poller_poll (p=p@entry=0xd724b0, timeout=timeout@entry=100) at poller.c:348 #6 0x00000000004109cd in poller_loop (d=0xd724b0) at poller.c:502 #7 0x0000000000410a40 in thread_detach_func (d=0xd72760) at aux.c:143 #8 0x00007f0104bfb0a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #9 0x00007f010493004d in clone () from /lib/x86_64-linux-gnu/libc.so.6 ---------------------------------------------------------------------------- May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] Received command 'offer' from 127.0.0.1:54132 May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] Dump for 'offer' from 127.0.0.1:54132: { "sdp": "v=0#015#012o=- 2106942896836067783 2 IN IP4 127.0.0.1#015#012s=-#015#012t=0 0#015#012a=group:BUNDLE audio video#015#012a=msid-semantic: WMS bmOaa9JSAzUrqgkt3FMhWRFtFf9ZD5kephob#015#012m=audio 42335 UDP/TLS/RTP/SAVPF 111 103 104 9 0 8 106 105 13 126#015#012c=IN IP4 93.106.139.25#015#012a=rtcp:42335 IN IP4 93.106.139.25#015#012a=candidate:1603072777 1 udp 2122260223 192.168.43.146 42335 typ host generation 0#015#012a=candidate:1603072777 2 udp 2122260223 192.168.43.146 42335 typ host generation 0#015#012a=candidat ... May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] ... e:286199801 1 tcp 1518280447 192.168.43.146 0 typ host tcptype active generation 0#015#012a=candidate:286199801 2 tcp 1518280447 192.168.43.146 0 typ host tcptype active generation 0#015#012a=candidate:2466368666 1 udp 1686052607 93.106.139.25 42335 typ srflx raddr 192.168.43.146 rport 42335 generation 0#015#012a=candidate:2466368666 2 udp 1686052607 93.106.139.25 42335 typ srflx raddr 192.168.43.146 rport 42335 generation 0#015#012a=ice-ufrag:u/0nPx0lMpDlQMVC#015#012a=ice-pwd:uE6Th2lFMj9t/ej/BJCyfH2F#015#012a=fingerprint:sha-256 ... May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] ... C6:8B:2A:40:11:D3:62:27:F2:1E:57:74:96:FE:9A:D6:BD:7F:49:89:A7:83:59:30:37:FA:2A:D0:18:23:F8:4C#015#012a=setup:actpass#015#012a=mid:audio#015#012a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level#015#012a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time#015#012a=sendrec… opus/48000/2#015#012a=fmtp:111 minptime=10; useinbandfec=1#015#012a=rtpmap:103 ISAC/16000#015#012a=rtpmap:104 ISAC/32000#015#012a=rtpmap:9 G722/8000#015#012a=rtpmap:0 PCMU/8000#015#012a=rtpmap:8 PCMA/8000#015#012a=rtpmap:106 CN/32000#015#012a=rtpmap:105 CN/ ... May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] ... 16000#015#012a=rtpmap:13 CN/8000#015#012a=rtpmap:126 telephone-event/8000#015#012a=maxptime:60#015#012a=ssrc:1597007798 cname:sdU6nzYtuqrSk7wL#015#012a=ssrc:1597007798 msid:bmOaa9JSAzUrqgkt3FMhWRFtFf9ZD5kephob b792b9b2-5f78-48c6-848f-ead970de9b46#015#012a=ssrc:1597007798 mslabel:bmOaa9JSAzUrqgkt3FMhWRFtFf9ZD5kephob#015#012a=ssrc:1597007798 label:b792b9b2-5f78-48c6-848f-ead970de9b46#015#012m=video 42335 UDP/TLS/RTP/SAVPF 100 116 117 96#015#012c=IN IP4 93.106.139.25#015#012a=rtcp:42335 IN IP4 93.106.139.25#015#012a=candidate:1603072777 1 udp 2122260223 192.168.4 ... May 19 16:05:53 siika kernel: [135418.083617] rtpengine[11852]: segfault at 138 ip 0000000000421670 sp 00007f8d46dbb0e0 error 4 in rtpengine[400000+40000] May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] ... 3.146 42335 typ host generation 0#015#012a=candidate:1603072777 2 udp 2122260223 192.168.43.146 42335 typ host generation 0#015#012a=candidate:286199801 1 tcp 1518280447 192.168.43.146 0 typ host tcptype active generation 0#015#012a=candidate:286199801 2 tcp 1518280447 192.168.43.146 0 typ host tcptype active generation 0#015#012a=candidate:2466368666 1 udp 1686052607 93.106.139.25 42335 typ srflx raddr 192.168.43.146 rport 42335 generation 0#015#012a=candidate:2466368666 2 udp 1686052607 93.106.139.25 42335 typ srflx raddr ... May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] ... 192.168.43.146 rport 42335 generation 0#015#012a=ice-ufrag:u/0nPx0lMpDlQMVC#015#012a=ice-pwd:uE6Th2lFMj9t/ej/BJCyfH2F#015#012a=fingerprint:sha-256 C6:8B:2A:40:11:D3:62:27:F2:1E:57:74:96:FE:9A:D6:BD:7F:49:89:A7:83:59:30:37:FA:2A:D0:18:23:F8:4C#015#012a=setup:actpass#015#012a=mid:video#015#012a=extmap:2 urn:ietf:params:rtp-hdrext:toffset#015#012a=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time#015#012a=sendrec… VP8/90000#015#012a=rtcp-fb:100 ccm fir#015#012a=rtcp-fb:100 nack#015#012a=rtcp-fb:100 nack pli#015#012a=rtcp-fb:1 ... May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] ... 00 goog-remb#015#012a=rtpmap:116 red/90000#015#012a=rtpmap:117 ulpfec/90000#015#012a=rtpmap:96 rtx/90000#015#012a=fmtp:96 apt=100#015#012a=ssrc-group:FID 3260536260 3713515374#015#012a=ssrc:3260536260 cname:sdU6nzYtuqrSk7wL#015#012a=ssrc:3260536260 msid:bmOaa9JSAzUrqgkt3FMhWRFtFf9ZD5kephob 562441ea-c19c-4f34-8441-d6f3d86203bd#015#012a=ssrc:3260536260 mslabel:bmOaa9JSAzUrqgkt3FMhWRFtFf9ZD5kephob#015#012a=ssrc:3260536260 label:562441ea-c19c-4f34-8441-d6f3d86203bd#015#012a=ssrc:3713515374 cname:sdU6nzYtuqrSk7wL#015#012a=ssrc:3713515374 msid:bmOaa9JSAzUrqgkt3FMhWR ... May 19 16:05:53 siika rtpengine[11847]: [6ruajdfp6thf21tvu7pf] ... FtFf9ZD5kephob 562441ea-c19c-4f34-8441-d6f3d86203bd#015#012a=ssrc:3713515374 mslabel:bmOaa9JSAzUrqgkt3FMhWRFtFf9ZD5kephob#015#012a=ssrc:3713515374 label:562441ea-c19c-4f34-8441-d6f3d86203bd#015#012", "ICE": "force-relay", "rtcp-mux": [ "demux" ], "call-id": "6ruajdfp6thf21tvu7pf", "via-branch": "z9hG4bK829855", "received-from": [ "IP4", "192.98.102.30" ], "from-tag": "cbfkj5cp2c", "command": "offer" }