> How big is the virtual machine? Certainly a good question to have answered. But remember that he said he received the same failure with CP IPL 190, while IPL CMS works. If you can't get CMS loaded from disk...? Could there be corruption of the SDFs, and perhaps more?
Still, the TRSOURCE would yield valuable info, too. Mike Walter Hewitt Associates "Alan Altmark" <[EMAIL PROTECTED]> Sent by: "The IBM z/VM Operating System" <[email protected]> 07/26/2006 08:26 AM Please respond to "The IBM z/VM Operating System" <[email protected]> To [email protected] cc Subject Re: z/VM paging problem On Wednesday, 07/26/2006 at 01:48 EST, "Jeff Gribbin, EDS" <[EMAIL PROTECTED]> wrote: > Now, IIRC, the way that CP, "loads" the IPL simulator is by first paging > out a guest page (page 1?) and then messing with the guest's page tables > to point the guest page at the IPL simulator which sits inside the CP > nucleus (it's been several years - can anybody help out here?) and then > dispatching the guest, which triggers a pagein. This, "feels" like the > only paging operation that's going to be common the ALL IPL VDEV commands. > Comment? This is what I said a few days ago. CP actually copies the simulator (resident in CP) into the guest memory after paging out the selected pages. HCPCLS174E is issued because CP can't get a hold of the user's pages (smelling like a programming error) or there was a paging I/O error. Errors in the IPL simulator itself are HCPVMIxxxE errors. You can also get HCPCLS174E when the IPL is complete, but there is a problem paging the original guest pages back in. How big is the virtual machine? Does the same problem occur if the virtual machine is made smaller (looking for that programming error)? [I am a bit nervous because Ed said there are no ERP (error recovery procedure) messages on the operator's console when it happens, which is what you usually get with a CP-generated I/O error.] If a fresh paging volume doesn't solve the problem (the simplest and easiest way to try to fix it), then the next step is to call the Support Center. This is why you pay for support. :-) Or, what the heck, call them first in case there is a known problem. Alan Altmark z/VM Development IBM Endicott The information contained in this e-mail and any accompanying documents may contain information that is confidential or otherwise protected from disclosure. If you are not the intended recipient of this message, or if this message has been addressed to you in error, please immediately alert the sender by reply e-mail and then delete this message, including any attachments. Any dissemination, distribution or other use of the contents of this message by anyone other than the intended recipient is strictly prohibited.
