Bug created (http://sip-router.org/tracker/index.php?do=details&task_id=366)
On Mon, Nov 11, 2013 at 4:35 PM, Andrew Mortensen <admor...@isc.upenn.edu>wrote: > Hi Bob. Looks like a problem originating in the sca_appearance_unregister > logic. I'll take a look. Can you open an issue in the bug tracker in the > meantime? Thanks. > > andrew > > > On Nov 11, 2013, at 4:18 PM, Robert Boisvert <rdboisv...@gmail.com> wrote: > > > Hi! > > > > Looking for some help as to why the SCA module is crashing randomly on > 4.0.4. It has crashed several times with a backtrace that shows these > stack calls: > > > > (gdb) backtrace > > #0 0x00000000 in ?? () > > #1 0x4dceca11 in sca_hash_table_slot_kv_delete_unsafe () from > /usr/lib/kamailio/modules/sca.so > > #2 0x4dcecaaa in sca_hash_table_slot_kv_delete () from > /usr/lib/kamailio/modules/sca.so > > #3 0x4dcecb1e in sca_hash_table_index_kv_delete () from > /usr/lib/kamailio/modules/sca.so > > #4 0x4dcecb99 in sca_hash_table_kv_delete () from > /usr/lib/kamailio/modules/sca.so > > #5 0x4dcf30bc in sca_appearance_unregister () from > /usr/lib/kamailio/modules/sca.so > > #6 0x4dd0d9b9 in sca_call_info_update () from > /usr/lib/kamailio/modules/sca.so > > #7 0x126a6a9a in do_action () > > #8 0x126af88e in run_actions () > > #9 0x126a4731 in do_action () > > #10 0x126af88e in run_actions () > > #11 0x126b007f in run_top_route () > > #12 0x1269dd7e in receive_msg () > > #13 0x12734f01 in udp_rcv_loop () > > #14 0x126d3f56 in main_loop () > > #15 0x126d76de in main () > > The message that seemed to trigger the crash in this particular case was > the following INVITE: > > > > INVITE sip:35705@10.250.16.71;user=phone SIP/2.0 > > Record-Route: > <sip:10.250.16.70;lr=on;ftag=D8B14B68-93D21A25;did=513b.a3741> > > Via: SIP/2.0/UDP 10.250.16.70;branch=z9hG4bKc43b.14d180e6.0 > > Via: SIP/2.0/UDP 10.250.88.116;branch=z9hG4bK8d3ec33e632D8AB3 > > From: PIN-1 WKL USA <sip:15862@obscured>;tag=D8B14B68-93D21A25 > > To: <sip:0@obscured;user=phone> > > CSeq: 1 INVITE > > Call-ID: c69594c-ff17a5d9-d6ed4f6a@10.250.88.116 > > Contact: <sip:15862@10.250.88.116> > > Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, > NOTIFY, PRACK, UPDATE, REFER > > User-Agent: PolycomSoundPointIP-SPIP_335-UA/4.0.3.7562 > > Accept-Language: en > > Supported: 100rel,replaces > > Allow-Events: conference,talk,hold > > Max-Forwards: 32 > > Content-Type: application/sdp > > Content-Length: 296 > > > > v=0 > > o=- 1383792680 1383792680 IN IP4 10.250.88.116 > > s=Polycom IP Phone > > c=IN IP4 10.250.88.116 > > t=0 0 > > a=sendrecv > > m=audio 2230 RTP/AVP 9 18 0 8 101 > > a=rtpmap:9 G722/8000 > > a=rtpmap:18 G729/8000 > > a=fmtp:18 annexb=no > > a=rtpmap:0 PCMU/8000 > > a=rtpmap:8 PCMA/8000 > > a=rtpmap:101 telephone-event/8000 > > I have a pcap trace that shows all the calls from 3 hours prior and this > is the first time this device appeared. > > > > I followed the code down to the sca_hash_table_slot_kv_delete_unsafe () > routine and it appears to have crashed when it tried to use e->free_entry > which seems to have been NULL at that point. I'm not sure how it could be > NULL since it should have been initialized in > sca_hash_table_slot_kv_insert_unsafe (). I'm guessing that either > e->free_entry was never initialized or somehow it was overwritten. Since > several backtraces end in the same way the bug seems to have be specific to > some sequence of events I have not been able to identify. > > > > Any help tracking this down would be appreciated. > > > > Thanks, > > Bob > > _______________________________________________ > > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > > sr-users@lists.sip-router.org > > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >
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