Very vague but I seem to remember if an interrupt have occurred (and it should have since this is suspend lock) while holding local lock, status should be saved in area pointed to buy ASSBIHSA of holder address space.
-----Original Message----- From: David Cole <[email protected]> To: IBM-MAIN <[email protected]> Sent: Thu, Mar 6, 2014 5:09 pm Subject: Where is status saved for LOCAL LOCK'd code? I have a question. Recently, I was using z/XDC to watch the flow of execution of some task in a different aspace. At one point, that code acquired the Local Lock and then fell into a closed, tight execution loop ("B *" actually - I guess that's as tight as it gets.) But watching this thing from another aspace, I could not tell where the execution loop was! Normally, I would look at the resume PSW from the newest RB/XSB on the running TCB, but in this case the LLOCK was held, so the RB information was ancient history. So my question is, when the LOCAL LOCK is held and a the aspace that holds it is spinning, and I'm looking in from the outside, where do I look to to find that aspace's current PSW and registers? (Eventually, we took a dump and looked in the System Trace and found the loop from recorded interrupt addresses, but I'd like to be able to figure this out live... without having to resort to a dump.) TIA, Dave Cole ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
