-----------------------<snip>------------------------
I am curious If I can induce a Machine check without actually messing with the
pysical machine...
Yes. Any of the 6 interrupt classes can be induced as follows: your
authorized program (must be authorized) simply does a LPSW that points to the
new PSW location for the interrupt you wish to induce. The wisdom and
repercussions of doing this I leave to others.
If you wish the induced interrupt to cause a particular action, then you must
first disable interrupts and store data in the POO-defined storages areas that
that particular interrupt is involved with so that the interrupt processing
routine will act as you wish. E.g., when a machine-check interrupt occurs,
data is stored in the machine-check logout area that describes the exact nature
and location of the failure. When an I/O interrupt occurs, two full words are
stored in predefined areas in PSA that are related to the device from which the
interrupt came.
Be sure to do all this dangerous learning on a test system running under VM or
on a P/390 where you have complete hands-on control and where no other work
will be impacted, as you will also have the opportunity to do many reIPLs.
-----------------------------<unsnip>-------------------------
I've got a better idea: JUST SAY NO! I'm sure that whatever reason you
may have for wanting to take this action, there's a better, and safer
way, to accomplish your end.
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