A fix is available
APAR status
Closed as program error.
Error description
Dump Title: DB3P,ABND=0C4-0000003B,U=DDFPNO ,M=(N),C=910.LOCN=::10.144.33.113 ,LOC=DSNIDM .DSNIOST2+919C ABEND0C4 at DSNIOST2+919C happened because reg13 was incorrect. Before the ABEND, reg2 to reg13 were stored/restored at/from reg1+48. Between the store and restore, some registers' value were corrupted. At the ABEND0C4, reg1 was 48_3DD62000. But reg1 should have pointed a SKB at 3DD62000. When the SKB address was loaded in reg1, it missed to clear the first 4 bytes in reg1. Then address 48_3DD62000+48 was used to save reg2 to reg13 instead of 3DD62000+48. It overlaid address 48_3DD62048 to 48_3DD62078. And the area was updated between the store and restore, then the registers' value were corrupted and caused ABEND0C4 in DSNIOST2 after the restore. DB2OVRLAY/K
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All DB2 V9 users * **************************************************************** * PROBLEM DESCRIPTION: Abend0c4 DSNIOST2 when R13 contains * * incorrect stack value after DSNSFSTK * * FREE stack occurs from non-primary * * stack segment. * **************************************************************** * RECOMMENDATION: * **************************************************************** The register usage in the stack macro, used 31bit register R1 without properly clearing the high half, resulting in overlaying 64bit storage owned by that DB2, using it as a savearea. Before the registers were restored, the DB2 owner of that 64bit storage changed the values at the save register locations. When the registers were restored after the FREE call, gr13 was corrupt resulting in the abend0c4. Saving of these registers only occurs if the address of the stack storage being freed, is not in the current segment and the call goes out-of-line. The failure also requires that the calling module use GR1 to address some 64bit object storage.
Problem conclusion
The register usage by the macro has been changed so that the high half is properly cleared when stack is FREED.
Temporary fix
Comments
APAR Information
APAR number
PM91265
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
910
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-06-18
Closed date
2013-09-26
Last modified date
2013-11-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UK97972
Modules/Macros
DSNACA00 DSNARA00 DSNB1FLW DSNB1OPP DSNB5COM DSNB5PCI DSNB5QST DSNFGENM DSNFPMSG DSNGDAIP DSNHMAIN DSNHPSRV DSNHSMUT DSNIADR DSNIBNRF DSNICOFS DSNICRFT DSNICUMW DSNIDIFS DSNIDLER DSNIDNEX DSNIDSET DSNIESEN DSNIETRV DSNIFQST DSNIIDIS DSNIKDEF DSNIKESR DSNIMNEX DSNIMOFK DSNIMOFR DSNINUKY DSNIOST2 DSNIRCCA DSNIRCCD DSNIRCCS DSNIREFS DSNIRFNX DSNIRIDL DSNIRLPG DSNIRNXT DSNIRPRE DSNIRTSU DSNISEL DSNISELK DSNISFRL DSNISFS DSNISFWL DSNISFX2 DSNISPBM DSNISRID DSNISRTI DSNITDLE DSNIWNRF DSNIXLDI DSNIZMOS DSNJR103 DSNJW001 DSNKFLRR DSNKFLST DSNKFPRV DSNKFTCH DSNKFTRR DSNKNXT2 DSNLXRSL DSNRRSBS DSNTBAPM DSNTBAP2 DSNTSTRT DSNTXSTB DSNUGLDA DSNUGLDB DSNUULCA DSNUUSEL DSNVDTA DSNVEOT1 DSNVRMEL DSNWAACT DSNWAAPI DSNWACDF DSNWARDA DSNWARDS DSNWVAPR DSNWVCM1 DSNWVCM2 DSNWVCOL DSNWVCSP DSNWVCST DSNWVSRV DSNWVZPM DSNWVZPS DSNXACAE DSNXACKP DSNXECST DSNXEPP DSNXICIX DSNXIDFN DSNXOPBM DSNXOSJO DSNXOTS DSN3AUCN DSN3AUSI DSN9SCNF DSN9SCNP
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
R910 PSY UK97972
UP13/10/13 P F310
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.
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEPEK","label":"Db2 for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.1","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
04 November 2013