PM80607: ABEND0C4 DSNB1RLS +4AE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• DBT2,ABND=0C4-00000038,U=SP000   ,M=C9 ,C=101.BMC
  -DSNB1RLS,M=DSNTFRCV,LOC=DSNIDM  .DSNB1RLS+04AE
  The dsnb1rls abend0c4 +4AE occurs due to an overlayed PBA0.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: DB2 users.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND0C4 in DSNB1RLS.                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Abend is due to a serialization issue on a pageset/partition
  read-lsn chain, when a read-lsn is being registered for a
  scrollable cursor.  Since the scrollable cursor logic is using
  a different latch to serialize the chain than the other code
  which manipulates the chain, it may run into an ABEND0C4 due
  to the chain changing underneath it.
  

Problem conclusion

• DSNB1RLS has been modified to use the correct latch to serialize
  the read-lsn chain.
  

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:

  UK91315

Modules/Macros

•    DSNB1RLS
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK91315

     UP13/02/16 P F302

Fix is available

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