PI50547: ABEND S0C1 WHEN CLOSEACBINIT IS SET TO YES

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• You are receiving an intermitteht Abend S0C1 when CLOSEACBINIT
  is set to YES.
  ISZ0261I  LU xxxxxxxx VTAM session  starting - LOGMODE=D4A32792
  ACB=xxxxxxxx
  ISZ0049I LU xxxxxxxx LOSTERM 20
  ISZ0031I LU xxxxxxxx terminated
  ISZ0273E DISCONCT  SEND FAILED - RTNCD=X'04'(004)
  FDBK2=X'04'(004) SENSE=80050000
  IEA995I SYMPTOM DUMP OUTPUT  921
  SYSTEM COMPLETION CODE=0C1  REASON CODE=00000001
  TIME=17.22.05  SEQ=58990  CPU=0000  ASID=007B
    PSW AT TIME OF ERROR  078D1000   80000002  ILC 2  INTC 01
      NO ACTIVE MODULE FOUND
      NAME=UNKNOWN
      DATA AT PSW  00000000 - 000A0000  000130E1  00000000
      AR/GR 0: 00000000/00000002   1: 00000000/2A5173A0
                   2: 00000000/00000000   3: 00000000/2A5173A0
                   4: 00000000/0030B098   5: 00000000/2A4B38B8
                   6: 00000000/00000000   7: 00000000/00000000
                   8: 00000000/00000000   9: 00000000/2A50A6D0
                   A: 00000000/2A529530   B: 00000000/002E7768
                   C: 00000000/2E0565B8   D: 00000000/2A4B3870
                  E: 00000000/8030B0A8   F: 01000002/00000000
  Additional Symptom(s) Search Keyword(s): KIXREVBDB
  ISZ00825
  

Local fix

• SET CLOSEACBINIT TO NO
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Users of IBM Session Manager V3.2        *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND S0C1 at UNKNOWN (PSW pointing     *
  *                      to location zero.) R13 points to        *
  *                      ZEDVTI+EE                               *
  ****************************************************************
  * RECOMMENDATION: Apply the PTF.                               *
  ****************************************************************
  ISZ0114E ABEND at UNKNOWN - proceeding back through R13
  ISZ0115E Current R13 - ZEDVTI+EE called by ZEDVTI+77A
  

Problem conclusion

• CLOSEACBINACT YES code updated to prevent small timing
  window that was allowing ACB to be freed twice.
  200Y
  ISZCINIT
  

Temporary fix

Comments

APAR Information

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

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

  UI32301

Modules/Macros

• ISZCINIT
  

Fix information

• Fixed component name

  SESSION MANAGER

• Fixed component ID

  5655U9800

Applicable component levels

• R200 PSY UI32301

     UP15/10/27 P F510

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.