ORA-600 [KFNSMASTERWAIT01] occurs after applying PSU 11.1.0.7.1 (Doc ID 985150.1)

Last updated on JANUARY 12, 2010

Applies to:

Oracle Server - Enterprise Edition - Version: 11.1.0.7 to 11.1.0.7 - Release: 11.1 to 11.1
Information in this document applies to any platform.

Symptoms

During a rebalance, ASM shadow process reports many error messages in ASM alert.log and returns ORA-00600 kfnsMasterWait01 exception due to pending write I/Os.
.
.
...
ERROR: Releasing group with AU enqueue for extent gn=2 disk=24 au=159818
ERROR: Releasing group with AU enqueue for extent gn=2 disk=24 au=159817
ERROR: Releasing group with AU enqueue for extent gn=2 disk=12 au=159799
ERROR: Releasing group with AU enqueue for extent gn=2 disk=19 au=44662
ERROR: Releasing group with AU enqueue for extent gn=2 disk=24 au=159813
ERROR: Releasing group with AU enqueue for extent gn=2 disk=15 au=45714
ERROR: Releasing group with AU enqueue for extent gn=2 disk=24 au=159812
Errors in file /opt/oracle/diag/asm/+asm/+ASM1/trace/+ASM1_ora_7631.trc
(incident=225329):
ORA-00600: internal error code, arguments: [kfnsMasterWait01], [2], [], [],
[], [], [], [], [], [], [], []
.

Changes

1). 11.1.0.7 RAC Bundle1 (patch: 8461420) was applied.
or,
2). PSU 11.1.0.7.1  (Patch:8833297) was applied

Cause

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