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bug#8562: Emacs 23.1 and later don't work in windows 98


From: Jason Rumney
Subject: bug#8562: Emacs 23.1 and later don't work in windows 98
Date: Mon, 23 May 2011 21:43:40 +0800
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux)

oslsachem <address@hidden> writes:

> Is it necessary that the binaries are built on the same OS that they
> are going to be debugged in?

No, the main thing is that you have the source that you know matches the
binary you are running.

>From 
>http://www11.speedyshare.com/files/28593350/download/Emacs-23.3GDBWXPW98.txt

--8<---------------cut here---------------start------------->8---
Program received signal SIGSEGV, Segmentation fault.
0x01051020 in display_mode_line (w=0x3495c00, face_id=MODE_LINE_FACE_ID, 
    format=46642574) at xdisp.c:17289
17289         last->right_box_line_p = 1;
(gdb) warning: clipped frame 03495000 (address@hidden) got WM_PAINT - ignored

list
17284     extend_face_to_end_of_line (&it);
17285     if (face->box != FACE_NO_BOX)
17286       {
17287         struct glyph *last = (it.glyph_row->glyphs[TEXT_AREA]
17288                               + it.glyph_row->used[TEXT_AREA] - 1);
17289         last->right_box_line_p = 1;
17290       }
17291   
17292     return it.glyph_row->height;
17293   }
(gdb) where
#0  0x01051020 in display_mode_line (w=0x3495c00, face_id=MODE_LINE_FACE_ID, 
    format=46642574) at xdisp.c:17289
--8<---------------cut here---------------end--------------->8---

It appears that the pointer last is invalid here. What are the values of
it.glyph_row->glyphs[TEXT_AREA] and it.glyph_row->used[TEXT_AREA]?





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