If a nested enclave is created due to an SVC-assisted linkage (LINK on VM or MVS™, CMSCALL on VM), and it subsequently abends or program checks, or it software-signals a condition of severity two or greater, then condition token CEE391 was signaled in the creator of the nested enclave.
If the signal of the CEE391 condition is not handled, execution continues at the instruction after the LINK or CMSCALL.
Check condition token CEE391.
CEE391