PM72910: ABEND 04E REASON CODE 00E2000F IN DSNSVSFB OFFSET0858

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Dump Title: DBW7 ABND 04E 00E2000F U=SYSOPR M=N C=101 BMC
  DSNB5PCO M = DSNTFRCV LOC = DSNB5PCO DSNSVSFB +0858
  DSNB5PCO is trying to free:
  ASID(X'01AE') ADDRESS(48_FE73D430.) STORAGE
  ----------------------------
  _E73D430   00000000   00000000   0000007D   50CA26F4   |
  ...........'&..
  _E73D440   AB888D00   000B0000   E3D9000B   009327FC   |
  but the storage has already been freed.
  ip verbx dsnwdmp 'sm=6,smsa=1ae,phb=485009afb0'
  00000048_FE73D400: 00000340 00000000 00000000 0000007D 50CA26F4
  00000048_FE73D800* 00000400 00000048 FF0C2030 00000080 C6D9D7C2
  The error occurs trying to free a page list entry
  
  which was received via a notify message,
  and was sent with 4-byte page numbers.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: DB2 data sharing users, with table spaces or *
  *                 indexes with DSSIZE or PIECESIZE greater     *
  *                 than 64GB.                                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: ABEND04E RC00E2000F in DSNSVSFB, called *
  *                      by DSNB5PCO.                            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  For table spaces or indexes whose data set size allows page
  numbers greater than 3 bytes long (4K page size and data set
  size greater than 64GB, or 8K page size and data set size
  greater than 128GB), there is a possibility that a castout page
  list sent in a notify message may be truncated in a way which
  will cause the storage block trailer to become corrupted when
  the page list is sorted.  This results in an ABEND04E RC00E2000F
  in DSNSVSFB when the list is freed.
  

Problem conclusion

• The code which sends castout page lists in notify messages has
  been modified to ensure that the list length is correct for
  objects with large DSSIZE or PIECESIZE values.
  

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:

  UK82733

Modules/Macros

• DSNB1PCO DSNB5PCI
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RA10 PSY UK82733

     UP12/11/03 P F211

Fix is available

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