Re: SSRB/SSRX and LOCAL locks question
Dave I will setup an offline conference call to discuss this with both you and my colleague. He will be able to answer any/all questions in this area. Rob From: IBM Mainframe Discussion List On Behalf Of David Cole Sent: 31 May 2023 17:54 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: SSRB/SSRX and LOCAL locks question EXTERNAL EMAIL Thanks Rob. That sounds rather definitive. And of course for scheduling SRBs, that make perfect sense. But let me change the question slightly. I'm actually more interested in suspended local SRBs. I.E. SSRBs and SSRXs. Are they stabilized when the LOCAL lock is held? Thanks, Dave At 5/31/2023 09:52 AM, Rob Scott wrote: >Dave >The answer from a work colleague who knows a LOT about the dispatcher is : >"The answer is no. SRB scheduling/dispatching does not use the local >lock unless the SRB requests the local lock on dispatch. If so it >is obtained (or suspended to wait for it) as the dispatch occurs." >Rob Scott >Rocket Software > >>From: IBM Mainframe Discussion List >>mailto:IBM-MAIN@LISTSERV.UA.EDU>> On >>Behalf Of David Cole >>Sent: 31 May 2023 11:01 >>To: IBM-MAIN@LISTSERV.UA.EDU<mailto:IBM-MAIN@LISTSERV.UA.EDU> >>Subject: Re: SSRB/SSRX and LOCAL locks question >>EXTERNAL EMAIL >> >> >>I was enquiring specifically about SRBs, not RBs. >>Dave Cole >> >> >> >>At 5/31/2023 05:25 AM, Binyamin Dissen wrote: >>> >I don't see how that answers either question. >>> >The need for SUSPEND RB caller to be disabled is to allow the >>> resume process >>> >to resume it. You cannot schedule the resume process until the suspend as >>> >otherwise the resume may try resuming before the suspend >>> completes, causing >>> >the later suspend to never wake up. It works different than ECBs. >>> >On Wed, 31 May 2023 18:38:58 +1000 Attila Fogarasi >>> mailto:fogar...@gmail.com<mailto:fogar...@gmail.com%3cmailto:fogar...@gmail.com>>> >>> wrote: >>>> >>:>It's documented as needing either LOCAL or CML lock. See >>>> >>:>https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspen<https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspen> >>>> ding-rb-until-event-completes-suspend<https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend<https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend>> >>>> >>>> >> >>>> >>:> >>>> >>:>On Wed, May 31, 2023 at 6:20?PM Binyamin Dissen >>>> >>mailto:bdis...@dissensoftware.com<mailto:bdis...@dissensoftware.com%3cmailto:bdis...@dissensoftware.com>>> >>>> >>:>wrote: >>>>> >>>:> >>>>> >>>:>> On Tue, 30 May 2023 16:42:00 -0400 David Cole >>>>> >>>mailto:dbc...@colesoft.com<mailto:dbc...@colesoft.com%3cmailto:dbc...@colesoft.com>>> >>>>> >>> wrote: >>>>>> >>>:>> >>>>>> >>>:>> :>Does any know if suspended SRB control blocks (SSRB/SSRX) are >>>>>> >>>:>> :>stabilized by holding the LOCAL lock? (I'm >>>>>> considering logic in >>>>>> >>>:>> :>support of setting up TRAP2 debugging for SRBs.) >>>>>> >>>:>> >>>>> >>>:>> I am also curious to know what "owner serialized" means. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu<mailto:lists...@listserv.ua.edu> with the message: INFO IBM-MAIN Rocket Software, Inc. and subsidiaries ? 77 Fourth Avenue, Waltham MA 02451 ? Main Office Toll Free Number: +1 855.577.4323 Contact Customer Support: https://my.rocketsoftware.com/RocketCommunity/RCEmailSupport Unsubscribe from Marketing Messages/Manage Your Subscription Preferences - http://www.rocketsoftware.com/manage-your-email-preferences Privacy Policy - http://www.rocketsoftware.com/company/legal/privacy-policy This communication and any attachments may contain confidential information of Rocket Software, Inc. All unauthorized use, disclosure or distribution is prohibited. If you are not the intended recipient, please notify Rocket Software immediately and destroy all copies of this communication. Thank you. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: SSRB/SSRX and LOCAL locks question
Thanks Rob. That sounds rather definitive. And of course for scheduling SRBs, that make perfect sense. But let me change the question slightly. I'm actually more interested in suspended local SRBs. I.E. SSRBs and SSRXs. Are they stabilized when the LOCAL lock is held? Thanks, Dave At 5/31/2023 09:52 AM, Rob Scott wrote: Dave The answer from a work colleague who knows a LOT about the dispatcher is : "The answer is no. SRB scheduling/dispatching does not use the local lock unless the SRB requests the local lock on dispatch. If so it is obtained (or suspended to wait for it) as the dispatch occurs." Rob Scott Rocket Software From: IBM Mainframe Discussion List On Behalf Of David Cole Sent: 31 May 2023 11:01 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: SSRB/SSRX and LOCAL locks question EXTERNAL EMAIL I was enquiring specifically about SRBs, not RBs. Dave Cole At 5/31/2023 05:25 AM, Binyamin Dissen wrote: >I don't see how that answers either question. >The need for SUSPEND RB caller to be disabled is to allow the resume process >to resume it. You cannot schedule the resume process until the suspend as >otherwise the resume may try resuming before the suspend completes, causing >the later suspend to never wake up. It works different than ECBs. >On Wed, 31 May 2023 18:38:58 +1000 Attila Fogarasi mailto:fogar...@gmail.com>> wrote: >>:>It's documented as needing either LOCAL or CML lock. See >>:>https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspen ding-rb-until-event-completes-suspend<https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend> >> >>:> >>:>On Wed, May 31, 2023 at 6:20?PM Binyamin Dissen >>mailto:bdis...@dissensoftware.com>> >>:>wrote: >>>:> >>>:>> On Tue, 30 May 2023 16:42:00 -0400 David Cole >>>mailto:dbc...@colesoft.com>> wrote: >>>:>> >>>:>> :>Does any know if suspended SRB control blocks (SSRB/SSRX) are >>>:>> :>stabilized by holding the LOCAL lock? (I'm considering logic in >>>:>> :>support of setting up TRAP2 debugging for SRBs.) >>>:>> >>>:>> I am also curious to know what "owner serialized" means. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: SSRB/SSRX and LOCAL locks question
Dave The answer from a work colleague who knows a LOT about the dispatcher is : "The answer is no. SRB scheduling/dispatching does not use the local lock unless the SRB requests the local lock on dispatch. If so it is obtained (or suspended to wait for it) as the dispatch occurs." Rob Scott Rocket Software From: IBM Mainframe Discussion List On Behalf Of David Cole Sent: 31 May 2023 11:01 To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: SSRB/SSRX and LOCAL locks question EXTERNAL EMAIL I was enquiring specifically about SRBs, not RBs. Dave Cole At 5/31/2023 05:25 AM, Binyamin Dissen wrote: >I don't see how that answers either question. >The need for SUSPEND RB caller to be disabled is to allow the resume process >to resume it. You cannot schedule the resume process until the suspend as >otherwise the resume may try resuming before the suspend completes, causing >the later suspend to never wake up. It works different than ECBs. >On Wed, 31 May 2023 18:38:58 +1000 Attila Fogarasi >mailto:fogar...@gmail.com>> wrote: >>:>It's documented as needing either LOCAL or CML lock. See >>:>https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend<https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend> >> >>:> >>:>On Wed, May 31, 2023 at 6:20?PM Binyamin Dissen >>mailto:bdis...@dissensoftware.com>> >>:>wrote: >>>:> >>>:>> On Tue, 30 May 2023 16:42:00 -0400 David Cole >>>mailto:dbc...@colesoft.com>> wrote: >>>:>> >>>:>> :>Does any know if suspended SRB control blocks (SSRB/SSRX) are >>>:>> :>stabilized by holding the LOCAL lock? (I'm considering logic in >>>:>> :>support of setting up TRAP2 debugging for SRBs.) >>>:>> >>>:>> I am also curious to know what "owner serialized" means. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu<mailto:lists...@listserv.ua.edu> with the message: INFO IBM-MAIN Rocket Software, Inc. and subsidiaries ? 77 Fourth Avenue, Waltham MA 02451 ? Main Office Toll Free Number: +1 855.577.4323 Contact Customer Support: https://my.rocketsoftware.com/RocketCommunity/RCEmailSupport Unsubscribe from Marketing Messages/Manage Your Subscription Preferences - http://www.rocketsoftware.com/manage-your-email-preferences Privacy Policy - http://www.rocketsoftware.com/company/legal/privacy-policy This communication and any attachments may contain confidential information of Rocket Software, Inc. All unauthorized use, disclosure or distribution is prohibited. If you are not the intended recipient, please notify Rocket Software immediately and destroy all copies of this communication. Thank you. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: SSRB/SSRX and LOCAL locks question
I was enquiring specifically about SRBs, not RBs. Dave Cole At 5/31/2023 05:25 AM, Binyamin Dissen wrote: I don't see how that answers either question. The need for SUSPEND RB caller to be disabled is to allow the resume process to resume it. You cannot schedule the resume process until the suspend as otherwise the resume may try resuming before the suspend completes, causing the later suspend to never wake up. It works different than ECBs. On Wed, 31 May 2023 18:38:58 +1000 Attila Fogarasi wrote: :>It's documented as needing either LOCAL or CML lock. See :>https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend :> :>On Wed, May 31, 2023 at 6:20?PM Binyamin Dissen :>wrote: :> :>> On Tue, 30 May 2023 16:42:00 -0400 David Cole wrote: :>> :>> :>Does any know if suspended SRB control blocks (SSRB/SSRX) are :>> :>stabilized by holding the LOCAL lock? (I'm considering logic in :>> :>support of setting up TRAP2 debugging for SRBs.) :>> :>> I am also curious to know what "owner serialized" means. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: SSRB/SSRX and LOCAL locks question
I don't see how that answers either question. The need for SUSPEND RB caller to be disabled is to allow the resume process to resume it. You cannot schedule the resume process until the suspend as otherwise the resume may try resuming before the suspend completes, causing the later suspend to never wake up. It works different than ECBs. On Wed, 31 May 2023 18:38:58 +1000 Attila Fogarasi wrote: :>It's documented as needing either LOCAL or CML lock. See :>https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend :> :>On Wed, May 31, 2023 at 6:20?PM Binyamin Dissen :>wrote: :> :>> On Tue, 30 May 2023 16:42:00 -0400 David Cole wrote: :>> :>> :>Does any know if suspended SRB control blocks (SSRB/SSRX) are :>> :>stabilized by holding the LOCAL lock? (I'm considering logic in :>> :>support of setting up TRAP2 debugging for SRBs.) :>> :>> I am also curious to know what "owner serialized" means. -- Binyamin Dissen http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: SSRB/SSRX and LOCAL locks question
It's documented as needing either LOCAL or CML lock. See https://www.ibm.com/docs/en/zos/2.2.0?topic=processing-suspending-rb-until-event-completes-suspend On Wed, May 31, 2023 at 6:20 PM Binyamin Dissen wrote: > On Tue, 30 May 2023 16:42:00 -0400 David Cole wrote: > > :>Does any know if suspended SRB control blocks (SSRB/SSRX) are > :>stabilized by holding the LOCAL lock? (I'm considering logic in > :>support of setting up TRAP2 debugging for SRBs.) > > I am also curious to know what "owner serialized" means. > > -- > Binyamin Dissen > http://www.dissensoftware.com > > Director, Dissen Software, Bar & Grill - Israel > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: SSRB/SSRX and LOCAL locks question
On Tue, 30 May 2023 16:42:00 -0400 David Cole wrote: :>Does any know if suspended SRB control blocks (SSRB/SSRX) are :>stabilized by holding the LOCAL lock? (I'm considering logic in :>support of setting up TRAP2 debugging for SRBs.) I am also curious to know what "owner serialized" means. -- Binyamin Dissen http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
SSRB/SSRX and LOCAL locks question
Does any know if suspended SRB control blocks (SSRB/SSRX) are stabilized by holding the LOCAL lock? (I'm considering logic in support of setting up TRAP2 debugging for SRBs.) Thanks, Dave Cole -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
