From: Andrea Corallo <akrl@sdf.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 41321@debbugs.gnu.org, Stefan Monnier <monnier@iro.umontreal.ca>,
pipcet@gmail.com
Subject: bug#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects
Date: Fri, 22 May 2020 08:35:55 +0000 [thread overview]
Message-ID: <xjfy2pkwems.fsf@sdf.org> (raw)
In-Reply-To: <831rncjuwf.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 22 May 2020 10:22:56 +0300")
Eli Zaretskii <eliz@gnu.org> writes:
> FETCH_END calls marker-position, and that segfaults because the marker
> points to invalid memory, which was probably unmapped from the process
> address space (so I guess this is w32-specific, as GNU systems don't
> really return memory to the system). The start_marker is also
> invalid, it's just that FETCH_END is called first.
>
> Since the previous call to before-change-functions already used the
> same overlay markers, I suspect that the call to
> before-change-functions caused the memory to be unmapped (perhaps due
> to GC). As you see below, the value of before-change-functions is
>
> (t syntax-ppss-flush-cache)
>
> So the prime suspect is what happens when syntax-ppss-flush-cache
> runs, and thus I CC Stefan. The main question to answer now from my
> POV is how come a marker on buffer position 3116 which was valid
> before before-change-functions was called became invalid as result of
> some Lisp, in particular as result of calling before-change-functions.
>
> Here's the backtrace; ideas for further debugging are welcome.
Hi Eli,
I'be curious of the outcome if you had a look to your 'garbage_collect'
assembly to investigate the possible relation with 41357 as suggested
here
https://lists.gnu.org/archive/html/bug-gnu-emacs/2020-05/msg01095.html
Hope it helps
Andrea
--
akrl@sdf.org
next prev parent reply other threads:[~2020-05-22 8:35 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-16 10:33 bug#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects Eli Zaretskii
2020-05-16 16:33 ` Paul Eggert
2020-05-16 16:47 ` Eli Zaretskii
2020-05-17 10:56 ` Pip Cet
2020-05-17 15:28 ` Eli Zaretskii
2020-05-17 15:57 ` Eli Zaretskii
2020-05-22 7:22 ` Eli Zaretskii
2020-05-22 8:35 ` Andrea Corallo [this message]
2020-05-22 11:04 ` Eli Zaretskii
2020-05-22 12:55 ` Andrea Corallo
2020-05-22 10:54 ` Eli Zaretskii
2020-05-22 11:47 ` Pip Cet
2020-05-22 12:13 ` Eli Zaretskii
2020-05-22 12:39 ` Pip Cet
2020-05-22 12:48 ` Eli Zaretskii
2020-05-22 14:04 ` Pip Cet
2020-05-22 14:26 ` Eli Zaretskii
2020-05-22 14:40 ` Andrea Corallo
2020-05-22 19:03 ` Eli Zaretskii
[not found] ` <CAOqdjBdpU4U1NqErNH0idBmUxNeE3fL=2=KKpo9kbCM3DhW5gA@mail.gmail.com>
2020-05-23 17:58 ` Andrea Corallo
2020-05-23 22:37 ` Stefan Monnier
2020-05-23 22:41 ` Pip Cet
2020-05-23 23:26 ` Stefan Monnier
2020-05-22 12:32 ` Eli Zaretskii
2020-05-29 9:51 ` Eli Zaretskii
2020-05-29 10:00 ` Pip Cet
2020-05-23 23:54 ` Pip Cet
2020-05-24 14:24 ` Eli Zaretskii
2020-05-24 15:00 ` Pip Cet
2020-05-24 16:25 ` Eli Zaretskii
2020-05-24 16:55 ` Eli Zaretskii
2020-05-24 18:03 ` Pip Cet
2020-05-24 18:40 ` Eli Zaretskii
2020-05-24 19:40 ` Pip Cet
2020-05-25 2:30 ` Eli Zaretskii
2020-05-25 6:40 ` Pip Cet
2020-05-25 11:28 ` Pip Cet
2020-05-25 14:53 ` Eli Zaretskii
2020-05-25 15:12 ` Stefan Monnier
2020-05-26 3:39 ` Paul Eggert
2020-05-26 3:33 ` Paul Eggert
2020-05-26 6:18 ` Pip Cet
2020-05-26 7:51 ` Paul Eggert
2020-05-26 8:27 ` Pip Cet
2020-05-26 6:46 ` Paul Eggert
2020-05-26 15:17 ` Eli Zaretskii
2020-05-26 22:49 ` Paul Eggert
2020-05-27 15:26 ` Eli Zaretskii
2020-05-27 16:58 ` Paul Eggert
2020-05-27 17:33 ` Eli Zaretskii
2020-05-27 17:53 ` Paul Eggert
2020-05-27 18:24 ` Eli Zaretskii
2020-05-27 18:39 ` Paul Eggert
2020-05-28 2:43 ` Stefan Monnier
2020-05-28 7:27 ` Eli Zaretskii
2020-05-28 7:41 ` Paul Eggert
2020-05-28 13:30 ` Stefan Monnier
2020-05-28 14:28 ` Pip Cet
2020-05-28 16:24 ` Stefan Monnier
2020-05-29 9:43 ` Pip Cet
2020-05-29 18:31 ` Paul Eggert
2020-05-29 18:37 ` Pip Cet
2020-05-29 19:32 ` Paul Eggert
2020-05-29 19:37 ` Pip Cet
2020-05-29 20:26 ` Stefan Monnier
2020-05-29 20:40 ` Paul Eggert
2020-05-30 5:54 ` Eli Zaretskii
2020-05-30 17:52 ` Paul Eggert
2020-05-30 18:11 ` Eli Zaretskii
2020-05-30 18:17 ` Paul Eggert
2020-05-30 5:51 ` Eli Zaretskii
2020-05-30 14:26 ` Stefan Monnier
2020-05-27 17:57 ` Pip Cet
2020-05-27 18:39 ` Paul Eggert
2020-05-27 18:56 ` Pip Cet
2020-05-28 1:21 ` Paul Eggert
2020-05-28 6:31 ` Pip Cet
2020-05-28 7:47 ` Paul Eggert
2020-05-28 8:11 ` Pip Cet
2020-05-28 18:27 ` Eli Zaretskii
2020-05-28 19:33 ` Paul Eggert
2020-05-29 6:19 ` Eli Zaretskii
2020-05-29 20:24 ` Paul Eggert
2020-05-29 21:01 ` Pip Cet
2020-05-30 5:58 ` Eli Zaretskii
2020-05-30 7:19 ` Pip Cet
2020-05-30 9:08 ` Eli Zaretskii
2020-05-30 11:06 ` Pip Cet
2020-05-30 11:31 ` Eli Zaretskii
2020-05-30 13:29 ` Pip Cet
2020-05-30 16:32 ` Eli Zaretskii
2020-05-30 16:36 ` Pip Cet
2020-05-30 16:45 ` Eli Zaretskii
2020-05-30 18:04 ` Paul Eggert
2020-05-30 18:12 ` Pip Cet
2020-05-30 18:16 ` Eli Zaretskii
2020-05-30 18:45 ` Paul Eggert
2020-05-30 18:39 ` Pip Cet
2020-05-30 18:57 ` Paul Eggert
2020-05-30 19:06 ` Pip Cet
2020-05-30 21:27 ` Paul Eggert
2020-05-30 21:49 ` Pip Cet
2020-05-30 22:23 ` Paul Eggert
2020-05-30 22:54 ` Pip Cet
2020-05-30 16:31 ` Paul Eggert
2020-05-30 16:42 ` Eli Zaretskii
2020-05-30 17:06 ` Paul Eggert
2020-05-30 17:22 ` Eli Zaretskii
2020-05-30 18:12 ` Paul Eggert
2020-05-30 18:21 ` Eli Zaretskii
2020-05-30 19:14 ` Paul Eggert
2020-05-30 19:33 ` Eli Zaretskii
2020-05-30 22:18 ` Paul Eggert
2020-05-31 15:48 ` Eli Zaretskii
2020-06-01 14:48 ` Eli Zaretskii
2020-09-27 14:39 ` Lars Ingebrigtsen
2020-09-27 14:45 ` Pip Cet
2020-09-27 15:02 ` Lars Ingebrigtsen
2020-09-27 15:16 ` Eli Zaretskii
2020-05-30 16:53 ` Pip Cet
2020-05-30 5:50 ` Eli Zaretskii
2020-05-29 8:25 ` Pip Cet
2020-05-25 15:14 ` Eli Zaretskii
2020-05-25 17:41 ` Pip Cet
2020-05-24 19:00 ` Andy Moreton
2020-05-24 19:09 ` Pip Cet
2020-05-29 10:16 ` Eli Zaretskii
2020-05-29 10:34 ` Pip Cet
2020-05-29 10:55 ` Eli Zaretskii
2020-05-29 11:47 ` Pip Cet
2020-05-29 13:52 ` Eli Zaretskii
2020-05-29 14:19 ` Pip Cet
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