ORA-600  [top uga heap] During RMAN Duplication
(Doc ID 2051865.1)
Last updated on SEPTEMBER 16, 2015
Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
Select with 'group by' clause fails with error like below as reported in the alert log:
ORA-00600: internal error code, arguments: , , [top uga heap], , , , , , , , , 
The call stack from the trace file shows functions like:
... ksmarfg kghgex kghfnd kghalo kghgex kghfnd kghalo kghgex kghfnd kghalo kghgex kghalf klmalf kllcqc kcblin_internal kcblin qeshsAddChunk qeshsFindFreeSlot qeshfFindFreeSlot qeshBufferAlloc qeshPTInsertURowForGBY qeshLoadRowForGBY qerghRowP qervwRowProcedure qersoFetch qervwFetch qerghFetch qervwFetch qergsFetch opifch2 opiefn0 opipls opiodr rpidrus skgmstack rpiswu2 rpidrv psddr0 psdnal pevm_EXECC pfrinstr_EXECC ...
The execution plan in the trace file shows 'HASH GROUP BY'.
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