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From: Po Lu <luangruo@yahoo.com>
To: Lynn Winebarger <owinebar@gmail.com>
Cc: Eli Zaretskii <eliz@gnu.org>,
	 Stefan Monnier <monnier@iro.umontreal.ca>,
	 emacs-devel <emacs-devel@gnu.org>
Subject: Re: Loading tramp for dump goes into infinite regress
Date: Tue, 09 Aug 2022 21:42:49 +0800	[thread overview]
Message-ID: <87bkstzg6e.fsf@yahoo.com> (raw)
In-Reply-To: <CAM=F=bDMseJGzd0UsbkkMdi83tVF3B-a1wVW0=P7ARZHVEq0tQ@mail.gmail.com> (Lynn Winebarger's message of "Tue, 9 Aug 2022 09:22:46 -0400")

Lynn Winebarger <owinebar@gmail.com> writes:

> I'm not sure you can conclude that the benefit would be minor when the
> non-collected space is a 184MB dump file instead of a fixed pure space
> that is 2 or 2.4MB as it is in the standard pdump.

AFAIK we don't officially support any non-standard dump.

> At least some vestiges of the write barrier appear to be in place
> during dump mode.  I've had to make a lot of minor corrections of
> "defconst" keymaps to defvar, for example due to pure_write_error
> getting called.  Whether that barrier is uniformly enforced or not is
> one of the reasons I suspect this quick hack would not be sufficient.

I don't think it's very well enforced.  For example, any C code that
calls XSETCAR without checking whether or not the object (i.e. the reuse
argument to Fmatch_end) is writable will result in the invariant being
broken.



  reply	other threads:[~2022-08-09 13:42 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-24  0:47 Loading tramp for dump goes into infinite regress Lynn Winebarger
2022-07-24  7:55 ` Michael Albinus
2022-07-24 12:05   ` Lynn Winebarger
2022-07-24 12:23     ` Eli Zaretskii
2022-07-24 13:30       ` Lynn Winebarger
2022-07-24 13:34         ` Eli Zaretskii
2022-07-24 14:05           ` Lynn Winebarger
2022-07-24 14:09             ` Eli Zaretskii
2022-07-24 14:28               ` Lynn Winebarger
2022-07-24 16:00             ` Lynn Winebarger
2022-07-24 16:20               ` Lynn Winebarger
2022-07-24 16:31                 ` Eli Zaretskii
2022-07-25 12:49                   ` Lynn Winebarger
2022-07-25 13:56                     ` Eli Zaretskii
2022-07-26 11:24                       ` Lynn Winebarger
2022-07-27  0:58                         ` Lynn Winebarger
2022-07-27  2:48                           ` Lynn Winebarger
2022-07-27  8:31                             ` Lynn Winebarger
2022-08-09 12:29                       ` Lynn Winebarger
2022-08-09 12:36                         ` Po Lu
2022-08-09 13:22                           ` Lynn Winebarger
2022-08-09 13:42                             ` Po Lu [this message]
2022-08-09 15:55                               ` Lynn Winebarger
2022-07-25 16:54                     ` Stefan Monnier
2022-07-25 17:05                       ` Stefan Monnier
2022-07-26  0:28                       ` Lynn Winebarger
2022-07-26  1:10                         ` Lynn Winebarger
2022-08-06  6:07                       ` Lynn Winebarger
2022-08-06 12:57                         ` Lynn Winebarger
2022-08-06 15:39                           ` Lynn Winebarger
2022-08-06 20:23                             ` Working fully native-compiled "mega dump" (was Re: Loading tramp for dump goes into infinite regress) Lynn Winebarger
2022-08-06 20:52                               ` Lynn Winebarger
2022-07-25 20:11                     ` Loading tramp for dump goes into infinite regress Andrea Corallo
2022-07-31 20:22                       ` Lynn Winebarger
2022-08-03  9:58                         ` Lynn Winebarger
2022-08-03 12:22                           ` Eli Zaretskii
2022-08-03 14:53                             ` Native-compilation build process (was Re: Loading tramp for dump goes into infinite regress) Lynn Winebarger
2022-08-03 16:15                               ` Eli Zaretskii
2022-08-04  3:33                                 ` Lynn Winebarger
2022-08-05  1:57                                   ` Lynn Winebarger
2022-07-24 16:23               ` Loading tramp for dump goes into infinite regress Eli Zaretskii

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