Limitations of subspaces

Subspaces have the following limitations:

They do not provide protection against deliberate attempts to overwrite code.
To ensure that subspace storage is protected, the system abnormally ends a program that:
- Attempts to reference storage to which it does not have addressability
- Provides incorrect information on the IARSUBSP macro.
Therefore, you might need to code additional recovery routines for your programs.
An unauthorized application program running in a subspace cannot add more storage to the subspace. If an application program requires more subspace storage, the server program must obtain subspace-eligible storage for the application. This is explained in detail in Requesting additional storage while running in a subspace.