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Cisco Bug: CSCvu69523 - CUCM - CallManager service cores on fax call

Last Modified

Sep 01, 2020

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

10.5(2.22900.12) 11.5(1.18900.97) 12.0(1.24900.2) 12.5(1.13900.47)

Description (partial)

Symptom:
CCM coring on a fax call using SIP with backtrace:

 #0  SIPHandler::insertT38faxLine (sdpPtr=0xba0cc0a8, sessionAddr=0x0, fMline=0x0, mLineIdx=1, t38MCaps=0xdb03a21c) at ProcessSIPHandler.cpp:6298
#1  0x09405db5 in SIPHandler::insertLatentCaps (sdpPtr=0xba0cc0a8, mLineIdx=@0xdb03a2ec, aMLine=..., latentCaps=..., vndpar=@0xdb03a2bb) at ProcessSIPHandler.cpp:5127
#2  0x09407391 in SIPHandler::insertAudioMline (sdpPtr=0xba0cc0a8, sessionAddr=..., aMLine=..., mLineIdx=) at ProcessSIPHandler.cpp:5004
#3  0x09408b6a in SIPHandler::convertCmSDPtoStackSDP (sdp=..., ccb=0xbd3f3780) at ProcessSIPHandler.cpp:6798
#4  0x09409a4c in SIPHandler::insertSDPtoContainerContext (context=0xbae2eea8, ccmSDP=..., ccb=0xbd3f3780) at ProcessSIPHandler.cpp:19897
#5  0x0941c046 in SIPHandler::ccsip_call_setup_request (this=0xde0c0030, setupSig=...) at ProcessSIPHandler.cpp:12468
#6  0x0941ce19 in SIPHandler::wait_SIPSetupReq (this=0xde0c0030, s=...) at ProcessSIPHandler.cpp:2659
#7  0x09f67d1f in SdlProcessBase::inputSignal (this=0xde0c0030, rSignal=0xb867b8d8, traceType=SdlSystemLog::SignalThreadedWithPriorities, highPriority=0, normalPriority=0, lowPriority=0, veryLowPriority=0, lazyPriority=0, dbUpdatePriority=0) at SdlProcessBase.cpp:406
#8  0x09f95b74 in SdlThreadedProcess::threadQueueReader (this=0xde0c0030) at SdlThreadedProcess.cpp:110
#9  0x09f95d9f in SdlThreadedProcess::threadQueueReaderInit (sdlThreadedProcess=0xde0c0030) at SdlThreadedProcess.cpp:75
#10 0xf68fabc9 in start_thread () from /lib/libpthread.so.0
#11 0xf69fb07e in clone () from /lib/libc.so.6
 
The last signal seen in the CCM SDL traces will be a SIPSetupReq from SIPCdpc to SIPHandler

Conditions:
Fax call through a SIP trunk

cucm version: 11.5SU8
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