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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)

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).

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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