[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump fil
From: |
Gerd Möllmann |
Subject: |
bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using |
Date: |
Thu, 26 Oct 2023 18:32:23 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Eli Zaretskii <eliz@gnu.org> writes:
>> Cc: 66744@debbugs.gnu.org
>> From: Gerd Möllmann <gerd.moellmann@gmail.com>
>> Date: Thu, 26 Oct 2023 17:45:49 +0200
>>
>> The linux man page for mmap says, according to Google,
>>
>> MAP_PRIVATE
>> ...
>> It is unspecified whether changes made to the file
>> after the mmap() call are visible in the mapped region.
>>
>> So, if the changes made to the dump file in step 3 are visible in the
>> mmaped dump file that Emacs from step 2 uses, that would be a bit
>> suboptimal :-).
>
> Emacs on GNU/Linux doesn't use mmap, we stopped doing this many years
> ago.
Ok, but I must admit that I don't see how that is done in pdumper.c.
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Ihor Radchenko, 2023/10/25
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Gerd Möllmann, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Ihor Radchenko, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Gerd Möllmann, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Gerd Möllmann, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Eli Zaretskii, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using,
Gerd Möllmann <=
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Eli Zaretskii, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Ihor Radchenko, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Eli Zaretskii, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Gerd Möllmann, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Eli Zaretskii, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Ihor Radchenko, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Gerd Möllmann, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Eli Zaretskii, 2023/10/27
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Gerd Möllmann, 2023/10/26
- bug#66744: 30.0.50; Emacs crashes when re-dumping into the same dump file another Emacs instance is using, Gerd Möllmann, 2023/10/26