all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Eli Zaretskii <eliz@gnu.org>
To: Po Lu <luangruo@yahoo.com>
Cc: 50453@debbugs.gnu.org
Subject: bug#50453: 27.2; Portable dumper broken on MSW
Date: Tue, 07 Sep 2021 16:47:52 +0300	[thread overview]
Message-ID: <83eea0pkdz.fsf@gnu.org> (raw)
In-Reply-To: <871r60v9i0.fsf@yahoo.com> (bug-gnu-emacs@gnu.org)

> Date: Tue, 07 Sep 2021 20:46:31 +0800
> From:  Po Lu via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> Having recently had an opportunity to update the Emacs installed on some
> machines previously running 24.5, I noticed that Emacs 27.2 doesn't seem
> to load portable dumps, and instead fails with an out-of-memory error,
> the precise error message being:
> 
> emacs: could not load dump file
> "C:\PROGRAM FILES\EMACS\I686\libexec/emacs/27.2/i686-w64-mingw32/emacs.pdmp": out of memory.
> 
> Emacs operates normally if the portable dump file is removed, or when
> using unexec dumping.

How do you mean "operates normally if the portable dump file is
removed"?  Without a pdmp file, Emacs should load all the preloaded
Lisp files when it starts up, which is definitely not something I'd
call "normal".  Don't you see a long series of "Loading foo..."
messages when Emacs starts without a pdmp file?

> Admittedly, the machine is a Pentium 4 with 768 megabytes of memory (and
> what would you expect from a PC used to operate legacy software), but I
> see no reason loading pdumps should require more than that, as the
> previous dumper worked just fine.

First, the important figure is how much of the 768MB is free when
Emacs loads.

And second, you are using Emacs on Windows 9X, something that a few
people do, so perhaps we have some bug related to that version of
Windows.  If you can run Emacs under GDB, please step through
pdumper_load and tell where it bails out.  "Out of memory" is its
default error, so maybe the actual problem is something else, and we
just mis-diagnose it.  One possible issue could be with the way we
read the pdumper file as a memory-mapped file: perhaps something there
doesn't work on Windows 9X.

Thanks.





  reply	other threads:[~2021-09-07 13:47 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <871r60v9i0.fsf.ref@yahoo.com>
2021-09-07 12:46 ` bug#50453: 27.2; Portable dumper broken on MSW Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-07 13:47   ` Eli Zaretskii [this message]
2021-09-08 12:37     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-08 13:25       ` Eli Zaretskii
2021-09-09  8:07         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-09 11:34           ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-09 11:57             ` Eli Zaretskii
2021-09-09 12:40               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-09 12:55                 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-09 16:28                   ` Eli Zaretskii
2021-09-10  0:48                     ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-10 12:18                       ` Eli Zaretskii
2021-09-11  2:57                         ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-11  6:47                           ` Eli Zaretskii
2022-08-25 14:24                             ` Lars Ingebrigtsen
2022-08-25 14:47                               ` Gerd Möllmann
2022-08-26  2:37                                 ` Daniel Colascione
2022-08-26 10:43                                   ` Lars Ingebrigtsen
2022-08-26  1:05                               ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-26  6:00                                 ` Eli Zaretskii
2022-08-26  7:40                                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-08-26 10:39                                     ` Eli Zaretskii
2021-09-09 16:24                 ` Eli Zaretskii
2021-09-10  0:51                   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-09-09 11:58           ` Eli Zaretskii

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=83eea0pkdz.fsf@gnu.org \
    --to=eliz@gnu.org \
    --cc=50453@debbugs.gnu.org \
    --cc=luangruo@yahoo.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.