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bug#34256: 27.0.50; Crash on draw_glyphs()
From: |
Eli Zaretskii |
Subject: |
bug#34256: 27.0.50; Crash on draw_glyphs() |
Date: |
Thu, 31 Jan 2019 16:02:52 +0200 |
> From: Kaushal Modi <kaushal.modi@gmail.com>
> Date: Wed, 30 Jan 2019 15:54:06 -0500
> Cc: 34256@debbugs.gnu.org
>
> > This says Emacs was trying to display an image, but what image is
> > that? Where did it come from?
>
>
> It's the inline image display in the Org mode buffer.
OK.
> > And could it be that the new native
> > image scaling is the reason for this (i.e., was the image supposed to
> > be resized)? Hmm, but you built with ImageMagick, which AFAIU means
> > the native resizing code should not be invoked...
> >
>
> Imagemagick is probably not getting invoked.
>
> Org is using this part of the code to create image overlays:
> https://code.orgmode.org/bzg/org-mode/src/8ba23b9ce18d947a0241017ff33015a7807f615d/lisp/org.el#L18630-L18631
> .
>
> (create-image file
> (and width 'imagemagick)
> nil
> :width width)
>
> That `width' variable is nil, so effectively this is happening:
>
> (create-image file nil nil :width nil)
OK, so image resizing is still a suspect. Do you have HAVE_XRENDER
defined in src/config.h?
> > (gdb) frame 2
> > (gdb) p *s->first_glyph
> >
>
> Here it is:
>
> (gdb) frame 2
> #2 0x00000000004378fe in fill_image_glyph_string (s=s@entry=0x7fffffff7aa0)
> at xdisp.c:26154
> 26154 eassert (s->img);
> (gdb) p *s->first_glyph
> $1 = {
> charpos = 50512,
> object = XIL(0x47ba435),
> pixel_width = 404,
> ascent = 80,
> descent = 81,
> voffset = 0,
> type = 3,
> [...]
> u = {
> ch = 0,
> cmp = {
> automatic = false,
> id = 0
> },
> img_id = 0,
img_id = 0 is unusual for an image in a buffer. Are you running with
the tool bar disabled, perhaps?
And what do these show in the same call-stack frame #2:
(gdb) p FRAME_IMAGE_CACHE (s->f)->used
(gdb) p FRAME_IMAGE_CACHE (s->f)->images[0]
Thanks.
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/30
- bug#34256: 27.0.50; Crash on draw_glyphs(), Eli Zaretskii, 2019/01/30
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/30
- bug#34256: 27.0.50; Crash on draw_glyphs(), Eli Zaretskii, 2019/01/30
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/30
- bug#34256: 27.0.50; Crash on draw_glyphs(), Eli Zaretskii, 2019/01/30
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/30
- bug#34256: 27.0.50; Crash on draw_glyphs(),
Eli Zaretskii <=
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/31
- bug#34256: 27.0.50; Crash on draw_glyphs(), Eli Zaretskii, 2019/01/31
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/31
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/31
- bug#34256: 27.0.50; Crash on draw_glyphs(), Eli Zaretskii, 2019/01/31
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/31
- bug#34256: 27.0.50; Crash on draw_glyphs(), Kaushal Modi, 2019/01/31