JR44764: ASSERT IN NRTPAPI.C LINE 144

Communications Server for Windows, Version 6.4 -- Latest Fixpack

APAR status

• Closed as program error.

Error description

• An ASSERT is seen in the sna.err log:
  
  2012-03-11 08:04:01 EDT 4096-19(0-10) E (example.com)
  ASSERT:
  File name   = ../../p/sappn/nrtpapi.c
  Line number = 144
  Expression  = !NB_MEMCMP(thdr->tcid, LOCAL.my_tcid, S_TCID)
  Stack:
  nrt_rtp_receive+278(3292F020,33993048,33993048,1)
  nrt_receive_proc+1A0(3292F020,1,33993048,0)
  nba_dispatch_input+294(32941720,33993048,F003F580,49B2F20)
  nba_dispatch_process+CC(32941720,33993048,F003F620,1)
  nba_schedule_process+154(32941720,2F580C50,200034E,21A)
  nba_send_ips+308(30001B3,1,3292F020,0)
  nhp_rtp_nlp+DF0(3292F020,2F580C50,32924820,2F49B048)
  nhp_queue_handler+5DC(3292F020,2000,2F580C50,0)
  nba_dispatch_input+294
  

Local fix

Problem summary

• The problem occurs when the following all occur:
  If a node is restarted quickly and low numbered RTP pipes are in
  use at the point that the node is stopped (eg @R000004) then a
  VRN partner will not detect the failure and when it polls after
  the VRN connection is re-established CS/AIX can mix up the old
  data with data from a new partner. This leads to the ASSERT
  (which detects the randomised TCID that CS/AIX generates).
  

Problem conclusion

• Code has been added to ignore the old data.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IV21485

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  COMM SERV NT 6.

• Fixed component ID

  5639F2503

Applicable component levels

• R640 PSY