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From: Eli Zaretskii <eliz@gnu.org>
To: "Gerd Möllmann" <gerd.moellmann@gmail.com>
Cc: eggert@cs.ucla.edu, eller.helmut@gmail.com, emacs-devel@gnu.org
Subject: Re: MPS signals and Emacs
Date: Mon, 22 Apr 2024 12:18:29 +0300	[thread overview]
Message-ID: <86ttjt69i2.fsf@gnu.org> (raw)
In-Reply-To: <m2edaxbwhr.fsf@Pro.fritz.box> (message from Gerd Möllmann on Mon, 22 Apr 2024 11:02:56 +0200)

> From: Gerd Möllmann <gerd.moellmann@gmail.com>
> Cc: eggert@cs.ucla.edu,  eller.helmut@gmail.com,  emacs-devel@gnu.org
> Date: Mon, 22 Apr 2024 11:02:56 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> An example in Emacs is the control stack marking.
> >
> > Is that just one example, or is that the _only_ example?  If the
> > former, what other examples of ambiguous references are there in
> > Emacs?
> 
> I think I've also seen at least one other example, but I forget where
> that was (maybe specpdl, or bytecode?). I think the function called
> is mark_mem or so.

So any Lisp object referenced from the C stack or from byte-code will
not be copied by MPS?  What are the implications of that for Emacs?
AFAIU, the current GC considers any such object as live, marks it, and
doesn't collect it as garbage during the sweep step, but being unable
to copy such an object means something very different for a copying
GC, doesn't it?  Because AFAIU live objects _are_ copied.



  reply	other threads:[~2024-04-22  9:18 UTC|newest]

Thread overview: 149+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-20  9:34 STatus of MPS branch Gerd Möllmann
2024-04-20 14:56 ` Michael Albinus
2024-04-20 15:08   ` Gerd Möllmann
2024-04-20 15:32     ` Michael Albinus
2024-04-20 17:37       ` Gerd Möllmann
2024-04-21  7:39         ` Michael Albinus
2024-04-21  7:56           ` Gerd Möllmann
2024-04-21  8:00             ` Gerd Möllmann
2024-04-21  8:04               ` Michael Albinus
2024-04-21  8:08                 ` Gerd Möllmann
2024-04-21  8:18                   ` Michael Albinus
2024-04-21  8:28                     ` Gerd Möllmann
2024-04-21  8:17           ` Gerd Möllmann
2024-04-21  9:43             ` Michael Albinus
2024-04-21 10:07               ` Gerd Möllmann
2024-04-21 10:58                 ` Tramp tests in MPS branch (was: STatus of MPS branch) Michael Albinus
2024-04-21 12:44                   ` Tramp tests in MPS branch Gerd Möllmann
2024-04-21  9:29           ` STatus of " Eli Zaretskii
2024-04-21  4:38 ` Gerd Möllmann
2024-04-21  5:31   ` Eli Zaretskii
2024-04-21  5:39     ` Gerd Möllmann
2024-04-21  9:04       ` Eli Zaretskii
2024-04-21  9:17         ` Gerd Möllmann
2024-04-21  6:15 ` Gerd Möllmann
2024-04-21  9:09   ` Eglot tests on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21  9:53     ` João Távora
2024-04-21 10:13       ` Eglot tests on MPS branch Gerd Möllmann
2024-04-21 11:01         ` João Távora
2024-04-21 10:55       ` Eglot tests on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21  7:49 ` STatus of MPS branch Gerd Möllmann
2024-04-21  8:45   ` Gerd Möllmann
2024-04-21  9:08     ` Andrea Corallo
2024-04-21  9:33     ` Native compilation on " Eli Zaretskii
2024-04-21 10:17       ` Gerd Möllmann
2024-04-21 13:07         ` Andrea Corallo
2024-04-22  7:15           ` Gerd Möllmann
2024-04-22 22:02             ` Andrea Corallo
2024-04-23  3:11               ` Gerd Möllmann
2024-04-23 16:09               ` Gerd Möllmann
2024-04-23 19:43                 ` Andrea Corallo
2024-04-24 12:49                   ` Gerd Möllmann
2024-04-24 18:14                     ` Andrea Corallo
2024-04-24 18:28                       ` Gerd Möllmann
2024-04-24 20:54                         ` Andrea Corallo
2024-04-25  4:33                           ` Gerd Möllmann
2024-04-25  5:50                             ` Andrea Corallo
2024-04-25  7:18                               ` Gerd Möllmann
2024-04-25  8:06                                 ` Andrea Corallo
2024-04-25  8:15                                   ` Gerd Möllmann
2024-04-25  8:57                                     ` Gerd Möllmann
2024-04-25  9:42                                     ` Andrea Corallo
2024-04-25 11:33                                       ` Gerd Möllmann
2024-04-25  5:24                           ` Eli Zaretskii
2024-04-25  5:48                             ` Andrea Corallo
2024-04-25 15:20                               ` Eli Zaretskii
2024-04-26 10:15                                 ` Gerd Möllmann
2024-04-21  8:58   ` STatus of " Andrea Corallo
2024-04-21  9:19     ` Gerd Möllmann
2024-04-21  9:30   ` Native compilation on MPS branch (was: STatus of MPS branch) Eli Zaretskii
2024-04-21 14:39 ` STatus of MPS branch Helmut Eller
2024-04-21 15:37   ` Gerd Möllmann
2024-04-21 15:52     ` Eli Zaretskii
2024-04-21 20:24     ` Helmut Eller
2024-04-22  4:58       ` Gerd Möllmann
2024-04-22  5:28       ` Gerd Möllmann
2024-04-22  6:15         ` MPS signals and Emacs (was: STatus of MPS branch) Eli Zaretskii
2024-04-22  6:44           ` MPS signals and Emacs Paul Eggert
2024-04-22  7:19             ` Gerd Möllmann
2024-04-22  7:40               ` Paul Eggert
2024-04-22  7:49                 ` Gerd Möllmann
2024-04-22  8:09                   ` Eli Zaretskii
2024-04-22  8:27                     ` Gerd Möllmann
2024-04-22  8:55                       ` Eli Zaretskii
2024-04-22  9:02                         ` Mattias Engdegård
2024-04-22  9:02                         ` Gerd Möllmann
2024-04-22  9:18                           ` Eli Zaretskii [this message]
2024-04-22  9:29                             ` Gerd Möllmann
2024-04-22  9:41                               ` Eli Zaretskii
2024-04-22 10:22                                 ` Gerd Möllmann
2024-04-22 10:46                                   ` Eli Zaretskii
2024-04-22 11:00                                     ` Gerd Möllmann
2024-04-22 12:01                                       ` Eli Zaretskii
2024-04-22 12:16                                         ` Gerd Möllmann
2024-04-22 10:54                                   ` Eli Zaretskii
2024-04-22 11:05                                     ` Gerd Möllmann
2024-04-22 19:41                   ` Paul Eggert
2024-04-22 20:55                     ` Gerd Möllmann
2024-04-22 22:12                       ` Paul Eggert
2024-04-23  3:15                         ` Gerd Möllmann
     [not found]                       ` <87le54g1h2.fsf@dick>
2024-04-23  5:51                         ` Gerd Möllmann
2024-04-23  6:35                           ` Helmut Eller
2024-04-23  6:45                             ` Gerd Möllmann
2024-04-23  6:53                               ` Helmut Eller
2024-04-23 14:29                                 ` Gerd Möllmann
     [not found]                                   ` <87sezbsmsd.fsf@dick>
2024-04-24  5:03                                     ` Gerd Möllmann
2024-04-22  7:46               ` Eli Zaretskii
2024-04-22  7:55                 ` Gerd Möllmann
2024-04-22 14:10             ` Helmut Eller
2024-04-22 14:42               ` Eli Zaretskii
2024-04-22 22:06                 ` Paul Eggert
2024-04-23  7:04                   ` Eli Zaretskii
2024-04-22  5:36       ` STatus of MPS branch Gerd Möllmann
2024-04-22  5:50         ` Gerd Möllmann
2024-04-22 15:09           ` Helmut Eller
2024-04-22 17:02             ` Gerd Möllmann
2024-04-24  7:26 ` Collecting markers with MPS (was: STatus of MPS branch) Helmut Eller
2024-04-24  7:44   ` Eli Zaretskii
2024-04-24  8:56     ` Collecting markers with MPS Helmut Eller
2024-04-24  9:17       ` Gerd Möllmann
2024-04-24 10:22       ` Eli Zaretskii
2024-04-24 10:27         ` Gerd Möllmann
2024-04-24 10:58           ` Gerd Möllmann
2024-04-24 13:32             ` Eli Zaretskii
2024-04-24 13:51               ` Gerd Möllmann
2024-04-24 15:03         ` Helmut Eller
2024-04-24 15:54           ` Eli Zaretskii
2024-04-24 16:21             ` Helmut Eller
2024-04-24 16:26               ` Eli Zaretskii
2024-04-24 16:50                 ` Gerd Möllmann
2024-04-24 19:18                 ` Helmut Eller
2024-04-24 19:55                   ` Gerd Möllmann
2024-04-25  7:38                   ` Mattias Engdegård
2024-04-24  9:08     ` Gerd Möllmann
2024-04-24 19:03       ` Helmut Eller
2024-04-24 20:02         ` Gerd Möllmann
2024-04-24 20:13           ` Helmut Eller
2024-04-24 20:42             ` Gerd Möllmann
2024-04-25  9:44       ` Helmut Eller
2024-04-25 11:44         ` Gerd Möllmann
2024-04-25 16:04 ` basic questions on MPS Andrea Corallo
2024-04-25 17:51   ` Helmut Eller
2024-04-25 18:48     ` Eli Zaretskii
2024-04-25 18:53     ` Gerd Möllmann
2024-04-25 19:26     ` Vibhav Pant
2024-04-26  6:36       ` Helmut Eller
2024-04-26  7:25         ` Gerd Möllmann
2024-04-26 15:07         ` vibhavp
2024-04-26  6:42       ` Gerd Möllmann
2024-04-27  0:20     ` Richard Stallman
2024-04-27  8:41       ` Helmut Eller
2024-04-28 22:44         ` Richard Stallman
2024-04-29  4:27           ` Helmut Eller
2024-04-29 22:40             ` Richard Stallman
2024-04-25 18:41   ` Eli Zaretskii
2024-04-25 18:53     ` Andrea Corallo
2024-04-25 18:56       ` Gerd Möllmann
2024-04-25 19:29         ` Andrea Corallo
2024-04-25 19:03       ` Eli Zaretskii
2024-04-25 19:09         ` Andrea Corallo

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