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bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with
From: |
Eli Zaretskii |
Subject: |
bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages |
Date: |
Fri, 26 Apr 2019 21:08:40 +0300 |
> From: Kaushal Modi <kaushal.modi@gmail.com>
> Date: Fri, 26 Apr 2019 10:08:30 -0400
> Cc: 35429@debbugs.gnu.org
>
> > If you mean the presence of Unicode characters, then I have the unicode
> box drawing characters too.
> The Org
> > file content is not 100% 8-bit ASCII.
>
> Not even its first 2874 characters?
>
> Those characters are in the buffer, not overlay. And they are not in the
> first 2874 characters.
> Here are the roughly first 3000 chars of that Org buffer: http://ix.io/1Hgv
That's strange, because the data you printed in GDB says there's at
least one non-ASCII character within the first 1406 character
positions.
> Note that at many places in that snippet, I have "=>" characters which I
> replace with a unicode symbol via
> prettify-symbols mode. E.g. "=>" is replaced with:
>
> position: 5434 of 8347 (65%), column: 35
> character: (displayed as ) (codepoint 59428, #o164044, #xe824)
> charset: unicode (Unicode (ISO10646))
> code point in charset: 0xE824
> syntax: w which means: word
> category: L:Left-to-right (strong)
> to input: type "C-x 8 RET e824"
> buffer code: #xEE #xA0 #xA4
> file code: #xEE #xA0 #xA4 (encoded by coding system utf-8-unix)
> display: by this font (glyph code)
> xft:-unknown-PragmataPro-normal-normal-normal-*-17-*-*-*-*-0-iso10646-1
> (#x11D5)
>
> Character code properties: customize what to show
> general-category: Co (Other, Private Use)
> decomposition: (59428) ('')
Why are you using PU characters? They will only work with specific
fonts, not in general. I advise against that. But I don't think this
is the reason, as no valid Unicode point should ever cause a crash.
> (gdb) p current_buffer->pt
> $1 = 1406
> (gdb) p current_buffer->pt_byte
> $2 = 1418
This is inconsistent both with the image of the buffer you posted
above and with the fact that character position 2874 corresponds to a
byte position 2874.
Are you sure the current buffer is your Org buffer? What do the
following commands display?
(gdb) p current_buffer->name_
(gdb) xstring
(gdb) fr 2
(gdb) p w->contents
(gdb) xtype
(gdb) xbuffer
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/25
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Eli Zaretskii, 2019/04/25
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/25
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Eli Zaretskii, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages,
Eli Zaretskii <=
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Eli Zaretskii, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Eli Zaretskii, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Eli Zaretskii, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Eli Zaretskii, 2019/04/26
- bug#35429: 27.0.50; Arbitrary xdisp.c related crashes when working with overlay-using packages, Kaushal Modi, 2019/04/26