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R77.10 / R77.20 VSX Gateway intermittently stops passing traffic during high traffic load
Symptoms
  • R77.10 / R77.20 VSX Gateway intermittently stops passing traffic.

  • After enabling generation of core dump files per sk92764, core dump files for 'fwk' process were generated in the /var/log/dump/usermode/ directory.

  • Core dump file for 'fwk' process contains the following functions at the top of the stack:

    (gdb) bt 
    #0  fwchain_do_deliver_ex (chain=0x...) at fwchain.c
    #1  0x... in fwchain_do_deliver_ (chain=0x...) at fwchain.c
    ... ... ...
    
Cause

'fwk' process might crash under high traffic load.


Solution
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