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Cisco Bug: CSCta56631 - Thread deadlock setting RouteGroup timer leads to ccm core

Last Modified

Jan 28, 2017

Products (3)

  • Cisco Unified Communications Manager (CallManager)
  • Cisco Unity Connection Version 7.1
  • Cisco Unified Communications Manager Version 7.1

Known Affected Releases


Description (partial)


UCM router thread dead and generate core. The backtrace of the core dump is:

 #0  0x003247a2 in _dl_sysinfo_int80 () from /lib/
#1  0x00760815 in raise () from /lib/tls/
#2  0x00762279 in abort () from /lib/tls/
#3  0x084c46a6 in preabort () at ProcessCMProcMon.cpp:101
#4  0x084c46be in IntentionalAbort (reason=0xa9f35c8 "CallManager unable
to process signals. This may be due to CPU or blocked function.
Attempting to restart CallManager.") at ProcessCMProcMon.cpp:106
#5  0x084c647a in CMProcMon::verifySdlRouterServices () at
#6  0x084c6854 in CMProcMon::callManagerMonitorThread
(cmProcMon=0x13f22bb8) at ProcessCMProcMon.cpp:437
#7  0x006595fb in ACE_OS_Thread_Adapter::invoke (this=0x146d1de8) at
#8  0x0061bcbf in ace_thread_adapter (args=0x0) at
#9  0x00b473cc in start_thread () from /lib/tls/
#10 0x008021ae in clone () from /lib/tls/


Large number of DB changnotification and routeplanmanager also intends to read data from DB
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