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<p class="MsoNormal">Hi All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I need some expert help to trouble shoot a problem I have seen, S-CSCF send BYE to tear down a call. I have make some progress to trace the problem to impurecord.c in ims_usrloc_scscf module, _c->first_dialog_data !=0 while try to delete
an expired contact. I need some help to find out why _c->first_dialog_data is not 0 for an expired contact.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To reproduce the problem, I began with the following for user1. Contact id 4098, 4114, and 4115 would expire and a call was using id 4116. When the time to delete contact, somehow scscf mistakenly think id 4098 still has a dialog, but the
dialog was with id 4116 which was NOT expired. Therefore, S-CSCF send BYE to tear down the call, so end user see call drop. Please note, if id 4098 never make calls before, first call was working fine. But once a call was make, you will see this problem for
next call. it seem S-CSCF did not clean up the dialog_data from last call properly and some data still hanging with the contact caused this problem. any insight how to fix or avoid this would be appreciated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">id contact params path received user_agent expires callid<o:p></o:p></p>
<p class="MsoNormal">2192 <a href="sip:user2@192.168.164.136:62837;rinstance=bca96a7c77f53916;transport=UDP">
sip:user2@192.168.164.136:62837;rinstance=bca96a7c77f53916;transport=UDP</a> NULL <<a href="sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr">sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr</a>> Zoiper rv2.10.3.2 2019-12-12
15:50:10 UPIM_gl22a13wlo47aeHRQ..<o:p></o:p></p>
<p class="MsoNormal">4098 <a href="sip:user1@192.168.164.9:61946;rinstance=7ab86c5e85643767;transport=UDP">
sip:user1@192.168.164.9:61946;rinstance=7ab86c5e85643767;transport=UDP</a> NULL <<a href="sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr">sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr</a>> Zoiper rv2.10.3.2 2019-12-12 15:49:21
ocl7UYxJLo8TnMw2p2-6NQ..<o:p></o:p></p>
<p class="MsoNormal">4114 <a href="sip:user1@192.168.164.9:61946;rinstance=65afabdb886de0a7;transport=UDP">
sip:user1@192.168.164.9:61946;rinstance=65afabdb886de0a7;transport=UDP</a> NULL <<a href="sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr">sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr</a>> Zoiper rv2.10.3.2 2019-12-12 15:50:11
GZrZHDyL3ojhDlLDPpJnvQ..<o:p></o:p></p>
<p class="MsoNormal">4115 <a href="sip:user1@192.168.164.9:61946;rinstance=074e2e926212237b;transport=UDP">
sip:user1@192.168.164.9:61946;rinstance=074e2e926212237b;transport=UDP</a> NULL <<a href="sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr">sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr</a>> Zoiper rv2.10.3.2 2019-12-12 15:50:13
DCKsqvUjZ1dAfJLfJ3nOhA..<o:p></o:p></p>
<p class="MsoNormal">4116 <a href="sip:user1@192.168.164.9:61946;rinstance=38cc0c6188509aea;transport=UDP">
sip:user1@192.168.164.9:61946;rinstance=38cc0c6188509aea;transport=UDP</a> NULL <<a href="sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr">sip:term@pcscf.ims.mnc001.mcc001.3gppnetwork.org;lr</a>> Zoiper rv2.10.3.2 2019-12-12 15:50:15
gF3fphqyrSbQwaN0eW4JLw..<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [udomain.c:384]: mem_timer_udomain(): *** mem_timer_udomain - checking IMPUs - FINISHED ***<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [udomain.c:406]: mem_timer_udomain(): deleting contact [<a href="sip:user1@ims.mnc001.mcc001.3gppnetwork.org">sip:user1@ims.mnc001.mcc001.3gppnetwork.org</a>]<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [impurecord.c:598]: delete_scontact(): Deleting contact: [<a href="sip:user1@192.168.164.9:61946;rinstance=074e2e926212237b;transport=UDP">sip:user1@192.168.164.9:61946;rinstance=074e2e926212237b;transport=UDP</a>]<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [usrloc_db.c:370]: db_delete_ucontact(): Deleting ucontact [<a href="sip:user1@192.168.164.9:61946;rinstance=074e2e926212237b;transport=UDP">sip:user1@192.168.164.9:61946;rinstance=074e2e926212237b;transport=UDP</a>]<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [impurecord.c:310]: mem_delete_ucontact(): Checking if dialog_data is there and needs to be torn down<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [impurecord.c:312]: mem_delete_ucontact():
<span style="color:red">first dialog is 0!<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [udomain.c:406]: mem_timer_udomain(): deleting contact [<a href="sip:user1@ims.mnc001.mcc001.3gppnetwork.org">sip:user1@ims.mnc001.mcc001.3gppnetwork.org</a>]<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [impurecord.c:598]: delete_scontact(): Deleting contact: [<a href="sip:user1@192.168.164.9:61946;rinstance=7ab86c5e85643767;transport=UDP">sip:user1@192.168.164.9:61946;rinstance=7ab86c5e85643767;transport=UDP</a>]<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [usrloc_db.c:370]: db_delete_ucontact(): Deleting ucontact [<a href="sip:user1@192.168.164.9:61946;rinstance=7ab86c5e85643767;transport=UDP">sip:user1@192.168.164.9:61946;rinstance=7ab86c5e85643767;transport=UDP</a>]<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [impurecord.c:310]: mem_delete_ucontact(): Checking if dialog_data is there and needs to be torn down<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [impurecord.c:314]: mem_delete_ucontact():
<span style="color:red">first dialog is not 0</span><o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_usrloc_scscf [impurecord.c:317]: mem_delete_ucontact(): Going to tear down dialog with info h_entry [1081] h_id [2579]<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_dialog [dlg_hash.c:887]: lookup_dlg(): ref dlg 0x7f803f803108 with 1 -> 3<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_dialog [dlg_hash.c:889]: lookup_dlg(): dialog id=2579 found on entry 1081<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_dialog [dlg_hash.c:1066]: unref_dlg(): unref dlg 0x7f803f803108 with 1 -> 2<o:p></o:p></p>
<p class="MsoNormal">13(18) DEBUG: ims_dialog [dlg_req_within.c:379]: dlg_terminate(): terminating confirmed dialog<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">--Charles<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
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