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Cisco Bug: CSCup38634 - snmp service crash when zone MIB is queried during high CPU load

Last Modified

Feb 05, 2017

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

6.2(11)FM(0.13) 6.2(11)FM(0.25) 6.2(7)S48 6.2(9)S32 6.2(9)S7

Description (partial)

Symptom:
The snmp service crashes. A core file is created and the following type of syslog message is logged:

  %SYSMGR-2-SERVICE_CRASHED: Service "snmpd" (PID 2914) hasn't caught signal 6 (core will be saved).

Conditions:
This issue only occurs when the supervisor CPU is heavily utilised and, concurrently, the zone MIB is queried multiple times. The CPU may become heavily utilised immediately after a supervisor switchover or during activation of a large zoneset, for example.
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