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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 21:32:26 +0300 |
> From: Kaushal Modi <kaushal.modi@gmail.com>
> Date: Fri, 26 Apr 2019 14:22:51 -0400
> Cc: 35429@debbugs.gnu.org
>
> (gdb) p current_buffer->name_
> $9 = XIL(0xc35be44)
> (gdb) xstring
> $10 = (struct Lisp_String *) 0xc35be40
> "ascii-art-to-unicode.el"
> (gdb) fr 2
> #2 0x0000000000456b44 in init_iterator (it=it@entry=0x7fffffff3040,
> w=w@entry=0x89da880, charpos=2874,
> bytepos=<optimized out>, row=<optimized out>,
> base_face_id=base_face_id@entry=DEFAULT_FACE_ID)
> at xdisp.c:3047
> 3047 eassert (charpos == BYTE_TO_CHAR (bytepos));
> (gdb) p w->contents
> $11 = XIL(0xc35be95)
> (gdb) xtype
> Lisp_Vectorlike
> PVEC_BUFFER
> (gdb) xbuffer
> $12 = (struct buffer *) 0xc35be90
> (unsigned char *) 0xb6e97a0 "ascii-art-to-unicode.el"
> (gdb)
>
> I hope this helps.
It does.
So now what do the following commands tell?
(gdb) fr 2
(gdb) p w->start
(gdb) xmarker
(gdb) p *$
- 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, 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