FPEU0021W UNABLE TO FREE VIRTUAL STORAGE. FREEMAIN RETURN CODE: `<V1>`, STORAGE ADDRESS: `<V2>`, STORAGE LENGTH: `<V3>`, SUBPOOL: `<V4>`

Explanation
 An error occurred attempting to free virtual storage.

<V1> is the FREEMAIN return code.

<V2> is the STORAGE address.

<V3> is the STORAGE length.

<V4> is the SUBPOOL.

User response
 Rerun the job. If the problem recurs, contact IBM® support.

FPEU0021W UNABLE TO FREE VIRTUAL STORAGE. FREEMAIN RETURN CODE: <V1>, STORAGE ADDRESS: <V2>, STORAGE LENGTH: <V3>, SUBPOOL: <V4>