Bug: ORA-4031 for subheap “KTC latch subh” in 11.2.0.3

I just saw MOS Note

ORA-4031 After Upgrade From 11.2.0.1 To 11.2.0.3 With Leak in ‘KTC latch subh’ Subheaps [ID 1398984.1]

giving very little information about this bug. At the time of this writing, there is no patch available but I expect it to be in a few days. I have checked some 11.2.0.3 instances and found only one with > 60 MB for this subheap.

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