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Cisco Bug: CSCvw04199 - Entity MIB API crash after SFP removal

Last Modified

Oct 14, 2020

Products (1)

  • Cisco Catalyst 9300 Series Switches

Known Affected Releases

16.12.4

Description (partial)

Symptom:
Crash observed under Entity MIB API  process

========= Exception Tracebacks =================================================

Exception to IOS:
Frame pointer 0x7F0782A92CE0, PC = 0x560552F39965
IOS Thread backtrace: 
UNIX-EXT-SIGNAL: Segmentation fault(11), Process = Entity MIB API
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  :56054B244000+7CF5965 :56054B244000+7CF4598 
Fastpath Thread backtrace: 
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  c:7F080C936000+EDEE3 prelib:7F0889CFC000+3EE6 prelib:7F0889CFC000+3EE6 
Packet Thread backtrace: 
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  c:7F080C936000+EDEE3 
Auxiliary Thread backtrace: 
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  pthread:7F080AB35000+D1C5 


Crash triggered while polling sensor information after sfp removal
%ENT_API-4-NOPARENT:  error observed

Oct  8 09:01:55 PDT: %PLATFORM_PM-6-MODULE_REMOVED: SFP module with interface name Gi1/1/1 removed
Oct  8 09:01:55 PDT: %ENT_API-4-NOPARENT: Parent physical entity 218959117 did not exist when trying to add
         child physical entity 1119, phyDescr = GigabitEthernet1/1/1 Bias Current Sensor, phyName = Gi1/1/1 Bias Current Sensor.
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  :56054B244000+7CF5494 :56054B244000+7CF22CC :56054B244000+7CF445E
Oct  8 09:01:55 PDT: %ENT_API-4-NOPARENT: Parent physical entity 2449503224 did not exist when trying to add
         child physical entity 1120, phyDescr = GigabitEthernet1/1/1 Transmit Power Sensor, phyName = Gi1/1/1 Transmit Power Sensor.
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  :56054B244000+7CF5494 :56054B244000+7CF22CC :56054B244000+7CF445E
Oct  8 09:01:55 PDT: %ENT_API-4-NOPARENT: Parent physical entity 2449503224 did not exist when trying to add
         child physical entity 1121, phyDescr = GigabitEthernet1/1/1 Receive Power Sensor, phyName = Gi1/1/1 Receive Power Sensor.
-Traceback= 1#2658c6db5c37a000fba2793f7f155189  :56054B244000+7CF5494 :56054B244000+7CF22CC :56054B244000+7CF445E

Conditions:
SNMP polling ENTITY-MIB 

Object	entityMIB
OID	1.3.6.1.2.1.47
MIB	ENTITY-MIB
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