Re: V2R1 Bug Bites us at V5R2

[Barbara Morris <bmorris@xxxxxxxxxx>]

Al Barsa wrote:
> ...
> The bad news is that because of a bug in the V2R1 RPG compiler, and because
> of a change to Level 40 security effective in V5R2, your programs compiled
> in V5R2 may need to be recompiled.  The bug manifests itself with a runtime
> MCH6801.  The only circumventions are:
>
>    Go back to level 30 - I don't recommend this
>    Recompile the programs in any release other than V2R1.  They could be
>    recompiled before or after V2R1, even on a System/38 (if you happen to
>    have one hanging around)
>

Al, the programs need to be recompiled on a release AFTER V2R1.  The
problem with the RPG compiler was there from the beginning, and was
fixed in V2R2.  Before V2R2, the RPG compiler generated code that
changed some storage that became write-protected at higher security
levels (40, I thought) in V2R2.  The RPG compiler was fixed to stop
changing that write-protected storage.

Your message should say

  The bad news is that because of a bug in the pre-V2R2 RPG compiler,
and because
  of a change to Level 40 security effective in V5R2, your RPG programs
compiled
  prior to V4R2 may need to be recompiled.  The bug manifests itself
with a runtime
  MCH6801.

Barbara Morris