CSCef48078 - SNMP ENGINE SYS-2-SHARED Attempt to return buffer with sharecount 0
Here is its Release-note:
Symptom:
The following errors and traceback messages are generated on the Catalyst 4000 L3 Switch (cat4000-I5S-M), Version 12.2(18)EW1:
-Process= "SNMP ENGINE", ipl= 4, pid= 104 -Traceback= 154D08 986540 986740 1D2310 1CC7E0
Aug 17 10:56:55.191: %SYS-2-SHARED: Attempt to return buffer with sharecount 0,ptr= 41C58C0
Workaround: make sure that there is no snmp authentication failure.
For example, if the snmp request is for a community that is not configured on the switch, then these messages will get triggered.
Impact: There is no known impact of this bug on the normal functioning of the switch. It is unlikely that the switch will reload because of this bug, nor are there likely to be any other side effects.
Even in case of authentication failure, snmp traps for authentication failure are sent to NMS as expected.
Suggestion: If the console is being used, and these messages are becoming a nuisance, consider configuring "no logging console".
If even that is not acceptable, then customer may switch to 12.2(20)EW or 12.2(20)EWA. The above traceback messages do NOT occur in these releaes, and authentication failure traps are sent as expected.
