ORA-600 [Kghlatch_reg4] - Older Version of Patch 5508574 does not Fix the Problem
Last updated on NOVEMBER 28, 2016
Applies to:Oracle Server - Enterprise Edition - Version: 126.96.36.199.0
AIX5L Based Systems (64-bit)
After migrating to a new AIX system, database fails to open with ORA-00600 [KGHLATCH_REG4]
Stack trace: kghlatch_register kglsgi kqlnfy kscnfy ksmcsg
Patch for <
Starting with _kgl_latch_count=15 as workaround of <
enables the DB to open but now the DB processes use 70% of CPU
without users logged on.
Problem started after several instances, including this one, were migrated from
AIX5.3 ML4 to AIX 5.3 ML6. This system has 10 CPUs.
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