Ron,

There isn't, because while the SRB is running, there is no control block which 
contains its status.

Here's a suggestion: obtain ColeSoft's XDC debugger product: it fully supports 
debugging in SRB mode. Full disclosure: I have no connection with this vendor.

Tom

----- Original Message -----
From: Ron MacRae [mailto:[email protected]]
Sent: Friday, October 05, 2012 11:05 AM
To: [email protected] <[email protected]>
Subject: Debugging SRB issues with IPCS

Hi all,
         Sorry if this has been done before but I couldn't see it.  

I've recently had to debug looping code in an SRB routine on a zIIP.  The only 
information I could find was the PSWs out of the MVS trace entries for the CPU 
timer interupts.  Fortunatly there were enough of them to determine the exact 
code path with a good degree of confidence and resolve the issue.

This got me to wondering is there any other info you can glean from a dump of a 
looping SRB?  For a TCB you could look for registers in the TCB/PRB/SVRB to get 
a clue of where you were recently. 

Is there anywhere else you can go for this sort of info for an SRB?

Ron.

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