GNU bug report logs - #36431
Crash in marker.c:337

Previous Next

Package: emacs;

Reported by: Werner LEMBERG <wl <at> gnu.org>

Date: Sat, 29 Jun 2019 11:19:01 UTC

Severity: normal

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

Full log

View this message in rfc822 format

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: wl <at> gnu.org, 36431 <at> debbugs.gnu.org
Subject: bug#36431: Crash in marker.c:337
Date: Tue, 02 Jul 2019 13:37:44 -0400

> OK, I finally saw that we don't actually call set-buffer-multibyte but
> instead we just set bset_enable_multibyte_characters.  I'm beginning to
> understand better.

Alright, so here one way to make this "transient" inconsistent state
escape its transientness (should it be "transienticity"?) and crash Emacs:

    (catch 'toto
      (let ((set-auto-coding-function (lambda (rest _) (throw 'toto nil))))
        (erase-buffer)
        (insert-file-contents "~/tmp/foo-c3c3.txt")))
        
where `~/tmp/foo-c3c3.txt` is a file that contains some invalid
utf-8 byte sequence (in my case I used two bytes C3 together).


        Stefan
This bug report was last modified 5 years and 312 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.