Oracle: How to solve "ORA-00800: [Set Priority Failed], [VKTM]"
When Oracle error ORA-00800 [Set Priority Failed], [VKTM] occurs, there are a few things to check:
Permissions
Owner
The binary $ORACLE_HOME/bin/oradism has to be root. If it's oracle or any other user, you should change it using the rootuser.
Group
The group of the executable