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Cisco Bug: CSCvu72697 - aaamgr restart with PC: [ffffe430/X] __kernel_vsyscall()

Last Modified

Sep 24, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.12.10.72499

Description (partial)

Symptom:
Task facilty aaamgr restart with following signature:
<div style="font-family:monospace;border-radius: 4px;padding: 6px;">Fatal Signal 6: Aborted
  PC: [ffffe430/X] __kernel_vsyscall()
  Signal from: sitmain pid=7376 uid=0
  Process: card=13 cpu=0 arch=X pid=10224 cpu=~0% argv0=aaamgr
  Cr@sh time: 2020-Apr-15+10:10:50 UTC
  Build_number: 72499
  Stack (4488@0x0xff885000):
    [ffffe430/X] __kernel_vsyscall() sp=0xff885c08
    [0cb6f0b4/X] sn_epoll_run_events() sp=0xff885c58
    [0cb7bbaa/X] sn_loop_run() sp=0xff886108
    [0c86f005/X] main() sp=0xff886178
  Last Bounce:
</div>

Conditions:
The aaamgr restart can happen during sessmgr recovery, when aaamgr is sending checkpoint information to sessmgr. The exact circumstances under which this issue is experienced is not known.
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