Maybe it’s not being corrupted in the SMF record but at the source.
Many SMF fields are copied from various control blocks. Check if that location
is being walked on.
Dan
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Shmuel (Seymour J.) Metz
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From: IBM Mainframe Discussion List on behalf of
Peter Relson
Sent: Thursday, June 13, 2019 8:26 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What happens if an SMF exit modifies
tion.
As always @Peter, thanks for your help.
Charles
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On
Behalf Of Peter Relson
Sent: Thursday, June 13, 2019 5:26 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What happens if an SMF exit modifie
> due to security and integrity of the SMF records themselves, IBM is not
talking much about it.
Security by obscurity?
No. These are updates by authorized programs. Neither security nor
integrity is a factor.
One ought to be asking for what reason an exit routine would update an SMF
record
Charles Mills wrote:
>Thanks @Scott and @Elardus.
You're most welcome!
>I have submitted an RCF and copied @Scott.
Cool! Keep them busy. ;-)
>@Elardus -- don't forget IEFU86.
Yes, you're right. I just copied (in a hurry!) the list of the IEFU8x involved
from a bookie in KC.
>> due to sec
Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of Elardus Engelbrecht
Sent: Wednesday, June 12, 2019 5:39 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: What happens if an SMF exit modifies the SMF record?
Charles Mills wrote:
>What happens if an SMF exit modifies the SMF recor
Charles Mills wrote:
>What happens if an SMF exit modifies the SMF record? Do the next exit in the
>chain, SYS1.MANx and/or the stream see the modified record, or is the exit
>only modifying a "private copy" of the SMF record?
It should be able to do that provided the SMF
The IEFU8x exits get the "live" record, so yes, any updates that the exit makes
would get passed on down the line.
I thought this was documented, but I did a quick search and didn't find it
either. (There are some places that hint at it but I didn't find anything that
spells it out.)
-Scott B
What happens if an SMF exit modifies the SMF record? Do the next exit in the
chain, SYS1.MANx and/or the stream see the modified record, or is the exit
only modifying a "private copy" of the SMF record?
It would seem to me to be an important point, and the documentation is
pretty much