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Cisco Bug: CSCvv81591 - Sessmgr uplane_flush_ttl_aged_entries_from_ip_pools

Last Modified

Oct 24, 2020

Products (2)

  • Cisco PGW Packet Data Network Gateway
  • Cisco PGW Packet Data Network Gateway

Known Affected Releases

21.18.12 21.18.6.76716

Description (partial)

Symptom:
Sessmgr restart seen on user-plane node with following symptoms:
<div style="font-family:monospace;border-radius: 4px;padding: 6px;">Fatal Signal 11: 11
  PC: [04896cee/X] uplane_flush_ttl_aged_entries_from_ip_pools()
  Faulty address: 0x8
  Signal from: kernel
  Signal detail: address not mapped to object
  Process: card=1 cpu=0 arch=X pid=31098 cpu=~22% argv0=sessmgr
  Cr@sh time: 2020-Aug-16+02:01:07 UTC
  Recent errno: 11 Resource temporarily unavailable
  Build_number: 76716
  Stack (5096@0x0xffc36000):
    [04896cee/X] uplane_flush_ttl_aged_entries_from_ip_pools() sp=0xffc36d28
    [04897350/X] uplane_dns_periodic_timeout() sp=0xffc36d98
    [0601671e/X] tlib_serv() sp=0xffc36de8
    [06016363/X] tlib_tmr_tick() sp=0xffc36e38
    [05490502/X] snx_timer_service() sp=0xffc36e48
    [0548e3ff/X] snx_fast_service() sp=0xffc36e78
    [068805fa/X] sessmgr_snx_tick_callback() sp=0xffc36eb8
    [0cd98c52/X] sn_loop_run() sp=0xffc37368
    [0ca6cf85/X] main() sp=0xffc373d8
  Registers:
</div>

Conditions:
NA
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