Re: OBJECT PATCHING

On 14/05/2010, at 7:05 PM, Roberto Garcia Perez1 wrote:

I have a couple of problems when trying to patch some objects in the
system. What I pretend is to replace the virtual address in one of the
QINSEPT pointers and point to a new pgm that I've developped, and also
patch this new program to change it to *SYSTEM state. The problems are:
1) My attempt to patch QINSEPT ends with a MCH6801.
2) My attempt to patch the program at location X'105C' to move it to a
*SYSTEM state shows no error but the operation is not performed.

You should get MCH6801 on this too.

All these steps are issued from a pgm in *SYSTEM state.

So you're trying to do this programmatically instead of via SST? In that case the failure of both attempts is due to hardware storage protection. The page protection for the SEPT space and the first page of a program object is 3 which means read-only at all levels.

IBM Global Services España, S.A.

Now that's amusing.

Regards,
Simon Coulter.
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