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Cisco Bug: CSCvu53455 - Switch memory leak in FED MAIN EVENT process

Last Modified

Oct 19, 2020

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases

16.9.5

Description (partial)

Symptom:
* Slow memory leak in FED MAIN PROCESS. 
* The output of "show platform software process memory switch active r0 all sorted" would look something like this: 

awpcics01#show platform software process memory switch active r0 all sorted 
   Pid      VIRT       RSS       PSS      Heap    Shared   Private              Name  
------------------------------------------------------------------------------------
 12348   3414636   1631176   1608107     72764     31160   1600016    fed main event

* The result from callsite debug for FED would look like this: 

SWITCH#show platform software memory fed switch active alloc callsite brief
The current tracekey is   : 1#8a7ecd2306cb077a3277ac465354658b

  callsite      thread    diff_byte               diff_call
  ----------------------------------------------------------
  3224906754    12746     512086080               12802152    <<< callsite leaking memory.
  3089916929    12348     57384                   1
  3089873920    12348     57360                   1
  1618164739    12746     17640                   49

Conditions:
* Under investigation.
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