On Wednesday, 02/15/2006 at 10:06 PST, "Harding, Mike" <[EMAIL PROTECTED]> wrote: > But if NETSTAT is doing a HNDEXT SET without specifying subcode as you > said in a previous post, then it would also be getting the IUCV > interrupts (and tossing them as they aren't vmcf).
Without a subcode, you are setting a default handler to receive EXT interrupts for codes that have not been specifically SET in other parts of the system. For example, if you try to issue, HNDEXT SET CODE=4000 (IUCV), you will get RC=2 indicating there is already a handler (the HNDIUCV service itself issued HNDEXT SET CODE=4000 at initialization time). Mr. Hayden's point about using the SMSG option on WAKEUP is well taken: Don't use it unless the partner is really issuing VMCF calls. I note, for the record, that WAKEUP does not use HNDEXT. It steals PSWs. Alan Altmark z/VM Development IBM Endicott
