The system experiences OOM while there is unaccounted memory.

Issue

• The system indicates a scarcity of available free memory, despite the minimal application-side usage.

crash> kmem -i
                 PAGES        TOTAL      PERCENTAGE
    TOTAL MEM  131923083     503.2 GB         ----
         FREE   164285     641.7 MB    0% of TOTAL MEM
         USED  131758798     502.6 GB   99% of TOTAL MEM
      BUFFERS        2         8 KB    0% of TOTAL MEM
       CACHED     5237      20.5 MB    0% of TOTAL MEM
         SLAB   239397     935.1 MB    0% of TOTAL MEM

   TOTAL HUGE  71752192     273.7 GB         ----
    HUGE FREE  71752192     273.7 GB  100% of TOTAL HUGE

   TOTAL SWAP  8388607        32 GB         ----
    SWAP USED   182930     714.6 MB    2% of TOTAL SWAP
    SWAP FREE  8205677      31.3 GB   97% of TOTAL SWAP

 COMMIT LIMIT  38474052     146.8 GB         ----
    COMMITTED  1062025       4.1 GB    2% of TOTAL LIMIT

crash> meminfo
======================================================================
           [ RSS usage ]          [ Process name ]
======================================================================
      21.7 MiB (  22244.00 KiB)   multipathd
      19.1 MiB (  19576.00 KiB)   ir_agent
      11.3 MiB (  11540.00 KiB)   crond
       6.2 MiB (   6328.00 KiB)   sshd
       6.0 MiB (   6100.00 KiB)   rapid7_endpoint
       5.8 MiB (   5956.00 KiB)   arcproxy
       5.5 MiB (   5588.00 KiB)   rapid7_agent_co
       4.9 MiB (   5060.00 KiB)   himds
       4.8 MiB (   4952.00 KiB)   gc_linux_servic
       4.3 MiB (   4376.00 KiB)   linux_agent_exe
    <...>
======================================================================
Total memory usage from user-space = 176.1 MiB