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

Last Modified

Feb 14, 2018

Products (3)

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

Known Affected Releases

7.1(2)

Description (partial)

Symptom:

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

  ====================================
 backtrace
 ===================================
 #0  0x003247a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x00760815 in raise () from /lib/tls/libc.so.6
#2  0x00762279 in abort () from /lib/tls/libc.so.6
#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
ProcessCMProcMon.cpp:789
#6  0x084c6854 in CMProcMon::callManagerMonitorThread
(cmProcMon=0x13f22bb8) at ProcessCMProcMon.cpp:437
#7  0x006595fb in ACE_OS_Thread_Adapter::invoke (this=0x146d1de8) at
OS_Thread_Adapter.cpp:94
#8  0x0061bcbf in ace_thread_adapter (args=0x0) at
Base_Thread_Adapter.cpp:137
#9  0x00b473cc in start_thread () from /lib/tls/libpthread.so.0
#10 0x008021ae in clone () from /lib/tls/libc.so.6


Conditions:

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