Binyamin. THANK YOU! That clears it up for me, at least. Regards, Jim
On Mon, Nov 29, 2021 at 2:08 AM Binyamin Dissen <[email protected]> wrote: > You must have a TCB with an RB in order to (successfully) issue an SVC. > > Type can issue SUSPEND RB=CURRENT but does no0t get suspended immediately, > as > it, by definition, holds the local lock. The SUSPEND takes effect after the > SVC exits. > > > On Sun, 28 Nov 2021 11:05:11 -0500 Jim Brooks <[email protected]> > wrote: > > :>I believe that there is no TCB, SVRB, etc. for a type 1 SVC; because it > :>requires the LOCAL LOCK. The status for > :>an interrupted type 1 SVC is saved in the IHSA, interrupt handler save > area > :>(one per processor). The ASXB points to the > :>IHSA. Refer to the MVS DATA AREAs VOL 2, and MVS Diagnosis Reference > Chap. > :>4. > :>I'm a very senior citizen; so, I could be incorrect. > :> > :>Regards, > :>Jim > :> > :> > :>On Sun, Nov 28, 2021 at 3:36 AM Binyamin Dissen < > [email protected]> > :>wrote: > :> > :>> On Fri, 26 Nov 2021 02:16:30 -0500 David Cole <[email protected]> > wrote: > :>> > :>> :>I have an ancient question... It seems to me I should know this after > :>> :>all these decades, but... I don't. > :>> > :>> :>While a type-1 SVC is running, where is the resume state data > :>> :>(registers, PSW, etc.) stashed? > :>> > :>> Split up between the TCB, STCB and PRB. > :>> > :>> :>Is it the same for type-6? > :>> > :>> Doubt it. It may rely on the SVC FLIH save area as it runs disabled. > :>> > :>> :>And while I'm at it, what are the differences between type-1 and > :>> :>type-6 SVCs, anyway> > :>> > :>> T6 is best if you are likely to schedule an SRB and/or you need better > :>> performance than type 1. > > -- > Binyamin Dissen <[email protected]> > http://www.dissensoftware.com > > Director, Dissen Software, Bar & Grill - Israel > > ---------------------------------------------------------------------- > 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
