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Cisco Bug: CSCvv77519 - 3850 switch crashed due to memory leak in process PIM register asynchronous tunnel creation

Last Modified

Oct 13, 2020

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases

16.9.3

Description (partial)

Symptom:
The 3850 switch may crashed unexpectedly after run out of memory.  Use the memory stats output command to check for memory leak indication.


Aug 13:
#show process memory sort
Processor Pool Total:  852816752 Used:  610960384 Free:  241856368
 lsmpi_io Pool Total:    6295128 Used:    6294296 Free:        832

 PID TTY  Allocated      Freed    Holding    Getbufs    Retbufs Process
   0   0  468962464  163658264  272306344          0          0 *Init*          
 232   0 2171776480 1905242928  193490808      89936          0 PIM register asy

Aug 14:
#show process memory sort
Processor Pool Total:  852816752 Used:  659954984 Free:  192861768
 lsmpi_io Pool Total:    6295128 Used:    6294296 Free:        832

 PID TTY  Allocated      Freed    Holding    Getbufs    Retbufs Process
   0   0  468962464  163658264  272247752          0          0 *Init*          
 232   0 2568369752 2256128240  229055584      94556          0 PIM register asy   <<<  latest. memory increased

Conditions:
This bug is only applicable to 3850 switches
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Bug Details Include

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