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Cisco Bug: CSCvi87166 - Nexus 3500 crashes with "spm hap reset" due to memory leak in or only SPM process crashes.

Last Modified

Jun 20, 2019

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases


Description (partial)

N3500 reloads with "spm hap reset" or only SPM process crashes. A core file may or may not be generated.

Following error might be seen before the crash:

%AFM-2-AFM_TCAM_UTIL_ABOVE_THRESHOLD: nat tcam utilization has gone above the threshold of 90% on ASIC id 0
which means NAT has to be configured and heavily utilized.

Also, the following library in SPM is constantly increasing its Current allocated memory, for example:
TYPE NAME                                           ALLOCS                 BYTES
                                               CURR    MAX       CURR        MAX
116 [r-xp]/isan/plugin/1/isan/lib/ 2913705 2916326   46619280   46771792
116 [r-xp]/isan/plugin/1/isan/lib/ 7628055 7630322  122048880  122196488
this can be checked with "show system internal spm mem-stats detail".
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