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Groups > comp.arch > #111359

Re: MSI interrupts

Path csiph.com!eternal-september.org!feeder3.eternal-september.org!panix!.POSTED.spitfire.i.gajendra.net!not-for-mail
From cross@spitfire.i.gajendra.net (Dan Cross)
Newsgroups comp.arch
Subject Re: MSI interrupts
Date Fri, 28 Mar 2025 02:53:57 -0000 (UTC)
Organization PANIX Public Access Internet and UNIX, NYC
Message-ID <vs5305$rd4$1@reader1.panix.com> (permalink)
References <vqto79$335c6$1@dont-email.me> <7a093bbb356e3bda3782c15ca27e98a7@www.novabbs.org> <vs41ap$n43$1@reader1.panix.com> <34434320650f5844b18b1c0b684acf43@www.novabbs.org>
Injection-Date Fri, 28 Mar 2025 02:53:57 -0000 (UTC)
Injection-Info reader1.panix.com; posting-host="spitfire.i.gajendra.net:166.84.136.80"; logging-data="28068"; mail-complaints-to="abuse@panix.com"
X-Newsreader trn 4.0-test77 (Sep 1, 2010)
Originator cross@spitfire.i.gajendra.net (Dan Cross)
Xref csiph.com comp.arch:111359

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In article <34434320650f5844b18b1c0b684acf43@www.novabbs.org>,
MitchAlsup1 <mitchalsup@aol.com> wrote:
>On Thu, 27 Mar 2025 17:19:21 +0000, Dan Cross wrote:
>> In article <7a093bbb356e3bda3782c15ca27e98a7@www.novabbs.org>,
>> MitchAlsup1 <mitchalsup@aol.com> wrote:
>-------------------
>> Or maybe even just swapping places between two elements in a
>> linked list.  For example:
>>
>> void
>> swap_places(Node **head, Node *a, Node *b)
>> {
>>         Node *hp, *an, *ap, *bn, *bp;
>>
>>         assert(head != NULL);
>>         assert(a != NULL);
>>         assert(b != NULL);
>>
>>         if (a == b)
>>                 return;
>>
>> 	  esmLOCKprefetch(*head);
>
>This should be a load not prefetch--you want the value of *head

I wondered about that.  I ASSumed that `esmLOCKprefetch` was
enough to set up a cache line address monitor on `*head`, but if
you tell me I need `esmLOCKload`, then I need `esmLOCKload`:

	hp = esmLOCKload(*head);
	if (hp == a)
		*head = b;  // Note I need to set whatever head points to, not hp.
	else if (hp == b)
		*head = a;

(You can see a vestige of me trying that earlier by the `hp`
temporary that I left in when I posted that initially, but I
didn't like how it looked, so I changed it to what was posted.)

>>         if (*head == a) 	// see !
>>                 *head = b;
>>         else if (*head == b)
>>                 *head = a;
>
>There is a ESM rule that states:: all participating cache lines
>must be touched before any participating cache lines can be
>modified.

Are these rules in a reference somewhere I can see?  I kinda
reckoned `esmLOCKprefetch` would be enough to "touch" the line,
but I fully admit I was just guessing.  Looks like `prefetch` is
mostly for the case where you'll store, but don't need to read?

>Also note: Participating cache lines are checked for write permission
>at touch time, and on cache miss, read with intent to modify.

Ok.

>>         an = esmLOCKload(a->next);
>>         ap = esmLOCKload(a->prev);
>>         bn = esmLOCKload(b->next);
>>         bp = esmLOCKload(b->prev);
>>
>>         b->next = an;
>>         if (an != NULL) {
>>                 esmLOCKprefetch(an->prev);
>>                 an->prev = b;
>> 		}
>>         b->prev = ap;
>>         if (ap != NULL) {
>>                 esmLOCKprefetch(ap->next);
>>                 ap->next = b;
>> 		}
>>
>>         a->next = bn;
>>         if (bn != NULL) {
>> 				esmLOCKprefetch(bn->prev);
>>                 bn->prev = a;
>> 		}
>>         if (bp != NULL) {
>> 		        esmLOCKprefetch(bp->next);
>>                 bp->next = a;
>> 		}
>>         esmLOCKstore(a->prev, bp);
>> }
>
>What I think you want:: (ignoring the 9 participants limit)

You mean 8 participants limit?  That counting thing again.  ;-}

What I really wanted was an example that exceeded that limit as
an expository vehicle for understanding what happens when the
limit is exceeded.  What does the hardware do in that case?

>> void
>> swap_places(Node **head, Node *a, Node *b)
>> {
>>         Node *hp, *an, *ap, *bn, *bp;
>>
>>         assert(head != NULL);
>>         assert(a != NULL);
>>         assert(b != NULL);
>>
>>         if (a == b)
>>                 return;
>
>top_of_ATOMIC_event:
>
>// this is the recovery point is you don't use esmINTERFERENCE()
>// the very next instruction begins the event.

Yup.  Tracking.

>>         esmLOCKprefetch( an = esmLOCKload(a->next) );
>>         esmLOCKprefetch( ap = esmLOCKload(a->prev) );
>>         esmLOCKprefetch( bn = esmLOCKload(b->next) );
>>         esmLOCKprefetch( bp = esmLOCKload(b->prev) );

What exactly does this do?  This "touches" whatever lines the
things that `an`, `ap`, `bn`, and `bp` are all in, as well as
the lines that the `a` and `b` prev and next pointers point
into as well, right?

> 	  Node *Ehead = esmLOCKload(*head);

You shoulda just used the `hp` local I left for you for exactly
this.  :-D

>// by placing all the the touching before any manifestation, you put
>// all the touch latency* in the code before it has tried to damage any
>// participating memory location. (*) and TLB latency and 2nd party
>// observation of your event.
>
>// this would be the point where you would insert if( esmINTERFERENCE(
>))
>// if you wanted control at a known failure point rather than at the
>// top of the event on failure.
>
>>         if (Ehead == a)
>>                 *head = b;
>>         else if (Ehead == b)
>>                 *head = a;
>>
>>         b->next = an;
>>         if (an != NULL) {
>>                 an->prev = b;
>> 		}
>>         b->prev = ap;
>>         if (ap != NULL) {
>>                 ap->next = b;
>> 		}
>>
>>         a->next = bn;
>>         if (bn != NULL) {
>>                 bn->prev = a;
>> 		}
>>         if (bp != NULL) {
>>                 bp->next = a;
>> 		}
>>         esmLOCKstore(a->prev, bp);
>> }
>
>// now manifestation has lowest possible latency (as seen by this core
>alone)

Doesn't this code now assume that `an->prev` is in the same
cache line as `an`, and similarly that `bn` is in the same line
as `bn->prev`? Absent an alignment constraint on the `Node`
type, that's not guaranteed given the definition posted earlier.

That may be an odd and ill-advised thing for a programmer to do
if they want their list type to work with atomic events, but it
is possible.

The node pointers and their respective `next` pointers are okay,
so I wonder if perhaps this might have been written as:

void
swap_places(Node **head, Node *a, Node *b)
{
        Node *hp, *an, *ap, *bn, *bp;

        assert(head != NULL);
        assert(a != NULL);
        assert(b != NULL);

        if (a == b)
                return;

        hp = esmLOCKload(*head);
        esmLOCKprefetch(an = esmLOCKload(a->next));
        ap = esmLOCKload(a->prev);
        esmLOCKprefetch(bn = esmLOCKload(b->next));
        bp = esmLOCKload(b->prev);

        if (an != NULL)
                esmLOCKprefetch(an->prev);
        if (bn != NULL) {
                esmLOCKprefetch(bn->prev);
				bn->prev = a;
        }

        if (hp == a)
                *head = b;
        else if (hp == b)
                *head = a;

        b->next = an;
        if (an != NULL)
                an->prev = b;
        b->prev = ap;
        if (ap != NULL)
                ap->next = b;

        a->next = bn;
        if (bp != NULL)
                bp->next = a;

        esmLOCKstore(a->prev, bp);
}

But now the conditional testing whether or not `an` is `NULL` is
repeated.  Is the additional branch overhead worth it here?

	- Dan C.

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Thread

MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-13 00:50 -0400
  Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-13 16:34 +0000
    Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-13 13:49 -0400
      Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-13 18:42 +0000
        Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-13 15:59 -0400
          Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-13 20:46 +0000
            Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-13 21:39 +0000
          Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-13 17:00 -0400
            Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-13 23:27 +0000
          Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-13 21:27 +0000
      Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-13 19:12 +0000
    Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-13 18:34 +0000
      Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-13 19:28 +0000
        Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-13 21:14 +0000
          Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-13 21:34 +0000
            Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-13 23:34 +0000
              Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-13 23:52 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-14 14:52 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-14 15:34 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-14 17:35 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-14 18:12 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-14 18:42 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-14 22:10 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-15 17:46 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-15 16:46 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-15 22:28 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-16 17:35 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-16 22:00 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-17 13:38 +0000
                Re: MSI interrupts Michael S <already5chosen@yahoo.com> - 2025-03-17 16:11 +0200
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-17 11:23 -0400
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-17 15:44 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-17 14:33 -0400
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-17 17:14 -0400
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-18 14:51 -0400
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-18 17:59 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-18 23:00 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-19 13:49 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 15:54 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-19 16:14 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 19:03 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-19 14:03 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 15:59 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-20 12:44 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-20 19:41 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-20 20:25 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-20 21:55 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 12:37 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-24 13:59 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-24 17:47 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 18:49 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-24 12:12 -0700
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-24 19:46 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 20:14 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-24 19:02 -0700
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-24 19:05 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 11:17 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 11:14 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-25 13:32 -0700
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-24 17:36 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-24 14:02 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-24 19:09 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 20:28 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-24 22:29 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 23:27 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-25 13:43 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 15:08 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-25 11:48 -0400
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-25 16:29 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-25 13:28 -0400
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-25 13:53 -0400
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-25 20:33 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 17:47 +0000
                Re: MSI interrupts Terje Mathisen <terje.mathisen@tmsw.no> - 2025-03-27 10:55 +0100
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-27 20:31 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-24 19:08 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 11:20 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-25 13:38 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 22:21 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-25 16:23 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 23:29 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-25 16:53 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 18:55 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-24 13:46 -0400
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-24 12:09 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 20:11 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-24 22:50 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 23:45 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-25 01:53 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-25 01:26 -0400
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-25 00:07 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 12:23 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-25 13:45 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-25 15:01 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 15:10 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-25 16:40 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 17:54 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-25 20:40 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 22:19 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-25 18:49 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 23:33 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-25 22:58 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-26 04:40 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-26 19:42 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-27 09:17 -0400
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-27 13:42 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-25 17:09 -0700
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-26 01:00 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-26 00:56 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-26 04:08 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-26 09:55 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-26 14:57 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-26 13:22 -0700
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-04-03 22:19 -0700
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-26 19:21 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-26 15:41 -0400
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-26 15:50 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-26 23:16 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-26 21:35 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-26 23:22 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-26 23:48 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-27 00:18 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-27 12:46 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-27 17:19 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-27 14:27 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-27 18:34 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-27 19:18 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-28 01:01 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-28 01:35 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-28 01:47 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-27 22:02 -0400
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-27 19:14 -0700
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-29 10:31 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-28 02:56 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-27 21:52 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-28 02:58 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-27 19:09 -0700
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-27 19:10 -0700
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-27 21:47 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-28 02:53 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-28 15:24 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-28 11:41 -0400
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-28 09:51 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-29 14:28 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-29 15:23 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-29 20:58 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-29 22:04 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-25 10:54 -0400
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-25 16:31 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-25 17:44 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-28 14:40 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-29 20:55 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-30 16:34 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-31 03:33 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-31 01:30 -0400
                Software synchronization (was: Re: MSI interrupts) cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-31 14:42 +0000
                Threads (was Re: MSI interrupts) scott@slp53.sl.home (Scott Lurndal) - 2025-03-31 15:28 +0000
                Re: Threads (was Re: MSI interrupts) Terje Mathisen <terje.mathisen@tmsw.no> - 2025-04-01 16:44 +0200
                Re: Threads (was Re: MSI interrupts) scott@slp53.sl.home (Scott Lurndal) - 2025-04-01 15:31 +0000
                Re: Threads (was Re: MSI interrupts) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-04-01 12:49 -0700
                Re: Threads (was Re: MSI interrupts) scott@slp53.sl.home (Scott Lurndal) - 2025-04-01 20:01 +0000
                Re: Threads (was Re: MSI interrupts) "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-04-01 13:17 -0700
                Re: Threads (was Re: MSI interrupts) scott@slp53.sl.home (Scott Lurndal) - 2025-04-01 22:04 +0000
                Re: Threads (was Re: MSI interrupts) anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2025-04-02 06:25 +0000
                Re: Threads (was Re: MSI interrupts) cross@spitfire.i.gajendra.net (Dan Cross) - 2025-04-02 13:04 +0000
                Re: Threads (was Re: MSI interrupts) Terje Mathisen <terje.mathisen@tmsw.no> - 2025-04-03 16:45 +0200
                Re: Threads (was Re: MSI interrupts) scott@slp53.sl.home (Scott Lurndal) - 2025-04-03 15:00 +0000
                Re: Threads (was Re: MSI interrupts) cross@spitfire.i.gajendra.net (Dan Cross) - 2025-04-03 17:16 +0000
                Re: Threads (was Re: MSI interrupts) scott@slp53.sl.home (Scott Lurndal) - 2025-04-03 17:24 +0000
                Re: Threads (was Re: MSI interrupts) cross@spitfire.i.gajendra.net (Dan Cross) - 2025-04-04 01:44 +0000
                Centronics (was Re: Threads (was Re: MSI interrupts)) George Neuner <gneuner2@comcast.net> - 2025-04-03 22:22 -0400
                Re: Centronics (was Re: Threads (was Re: MSI interrupts)) scott@slp53.sl.home (Scott Lurndal) - 2025-04-04 02:29 +0000
                Re: Threads (was Re: MSI interrupts) George Neuner <gneuner2@comcast.net> - 2025-04-03 01:38 -0400
                Re: Threads (was Re: MSI interrupts) cross@spitfire.i.gajendra.net (Dan Cross) - 2025-04-03 12:15 +0000
                Re: Threads (was Re: MSI interrupts) Robert Swindells <rjs@fdy2.co.uk> - 2025-04-04 10:41 +0000
                Re: Threads (was Re: MSI interrupts) George Neuner <gneuner2@comcast.net> - 2025-04-04 23:10 -0400
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-04-01 10:07 -0400
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-04-01 17:39 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 23:28 +0000
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-20 12:50 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-20 22:28 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-23 12:16 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-23 16:48 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-24 11:55 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-24 18:56 +0000
                Re: MSI interrupts "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-03-23 17:48 -0700
                Re: MSI interrupts cross@spitfire.i.gajendra.net (Dan Cross) - 2025-03-24 18:39 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-20 12:03 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-20 19:52 +0000
                Re: MSI interrupts EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-19 13:07 -0400
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-19 15:47 -0400
                Re: MSI interrupts - Instructions Robert Finch <robfi680@gmail.com> - 2025-03-26 06:56 -0400
                Re: MSI interrupts - Instructions EricP <ThatWouldBeTelling@thevillage.com> - 2025-03-26 10:33 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-18 22:49 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-18 20:39 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 01:22 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-18 23:22 -0400
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-19 13:54 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 15:56 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-17 21:49 +0000
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-18 01:34 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-18 18:51 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-18 19:19 +0000
                Re: MSI interrupts Stefan Monnier <monnier@iro.umontreal.ca> - 2025-03-19 11:20 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 16:00 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-19 13:27 -0400
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-19 19:17 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-17 10:12 -0400
                Re: MSI interrupts scott@slp53.sl.home (Scott Lurndal) - 2025-03-17 15:53 +0000
                Re: MSI interrupts mitchalsup@aol.com (MitchAlsup1) - 2025-03-17 19:06 +0000
                Re: MSI interrupts Robert Finch <robfi680@gmail.com> - 2025-03-17 17:33 -0400

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