On Tue, Mar 28, 2017 at 7:06 AM, Peter Hunkeler <[email protected]> wrote:
​<snip>​

>
>
> This is complex, multitasking code that has run for years without problem.
> The developer tried to change a tiny bit of code, and the errors startet do
> appear. The problem is that the code change has been backed out, but the
> problem still occurs in development. The only difference there should be
> between development and prod is that the development code has been
> recompiled/reassembled (it is maintained under ChangeMan). So
> recompilation/reassembly seems to lead to the error (I suspect it may be
> some AMODE24/31 issue). If the old code is activated (baseline), instead of
> what we think is the identical source, but recompiled, then the error does
> not appear.
>

​You might want to run an AMBLIST against the newly compiled program and
the old, functional, program. You can compare the listings to see any
changes to CSECT size, AMODE, or RMODE. That could at least point you to
where the newly compiled program differs from the functional program.​


>
> I'm not in development, and I do not know the code. I cannot play with it
> on my own, I have to "trust" the developer (which I do).
>

​There is an old Russian proverb: Trust, but verify. It was used by
President Reagan ​about nuclear disarmament with the U.S.S.R. I generally
trust the programmers here. But they often see what _should_ be there and
not what _is_ there. My stance has _always_ been: If you want my help, I
want a program compile listing and a dump. Both, if you can't supply both,
then "Son, you're on your own!"


>
>
> Main reason I posted is I was hoping to get comments that would give me
> new ideas what to look for. And to understand some of the system trace
> entries I currently don't understand. Such as the TCB in Read/Write nucleus.
>
>
>
>
> --
> Peter Hunkeler
>
>
>
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-- 
"Irrigation of the land with seawater desalinated by fusion power is
ancient. It's called 'rain'." -- Michael McClary, in alt.fusion

Maranatha! <><
John McKown

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