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Cisco Bug: CSCvv59148 - vpp restart during monitor subscriber

Last Modified

Oct 22, 2020

Products (1)

  • Cisco PGW Packet Data Network Gateway

Known Affected Releases

21.16.c12.75916 21.16.c14.76739

Description (partial)

Symptom:
vpp restart during monitor subscriber. This vpp restart cause up reboot.
The show crash list output will show a vpp process crash which contains this signature:

Fatal Signal 11: Segmentation fault
  Faulty address: (nil)
  Signal from: kernel
  Process: card=1 cpu=0 arch=X pid=6219 argv0=vpp
  Recent errno: 2 No such file or directory
  Threads:
    ...
      [(libvlib.so.19.04.2.rc0/unix_signal_handler()+0x33c) [0x7fc4d9f9e31c]]
      [/lib64/libpthread.so.0(+0xfb50) [0x7fc4d9ae3b50]]
      [(libvnet.so.19.04.2.rc0/pan_pbuffer_trace_this_packet_internal()+0x7db) [0x7fc4da962e7b]]
      [(libvnet.so.19.04.2.rc0/vppmob_drop_node_fn()+0x814) [0x7fc4da807384]]
      [(libvlib.so.19.04.2.rc0/dispatch_pending_node()+0x15d) [0x7fc4d9f56a1d]]
      [(libvlib.so.19.04.2.rc0/vlib_worker_loop()+0xa7f) [0x7fc4d9f5858f]]
      [(libvppinfra.so.19.04.2.rc0/clib_calljmp()+0x18) [0x7fc4d98731fc]]

Conditions:
monitor subscriber log collection.
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