An ESTAE-type recovery routine activated under PSW key 0 - 7 receives
an SDWA in storage key 0.
An ESTAE-type recovery routine activated under PSW key 8 - F receives
an SDWA as follows:
- Whether or not the recovery routine is in cross memory mode, the
SDWA is in the same storage key as the TCB key at the time the related
task made the first storage request from subpool 0.
- If the recovery routine is in cross memory mode, the system obtains
the SDWA from the primary address space in which the task that owns
the cross memory resources is running; that task is the one whose
address is in ASCBXTCB.
For information about subpools and storage keys, see Selecting the right subpool for your virtual storage request.