Shared Server Processes Can Fail with ORA-600  And ORA-29904 Executing Spatial Queries
Last updated on NOVEMBER 28, 2016
Applies to:Oracle Server - Enterprise Edition - Version: 18.104.22.168 to 10.1.0.2
This problem can occur on any platform.
ORA-00600: internal error code, arguments: , [0x....], , , , , , 
ORA-29904: error in executing ODCIIndexClose() routine
Due to this issue, users are unable to execute some spatial queries in a shared server architecture.
The Call Stack written to the trace file should contain mdrtcl and mdidx like in the following example:
ksedmp kgeriv kgesiv kgesic1 kghfrf
kditdes mdrtcl mdidxc qeroifc rpiswu2 qeroifcsu qeroiirc...
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