Subject: bug#15575: 24.3.50; New tty menus crash Emacs

From: Jan Djärv <[email-masked]>
Date: Wed, 9 Oct 2013 19:58:57 +0200

Hello.

9 okt 2013 kl. 19:41 skrev Eli Zaretskii <[email-masked]>:

>> From: Jan Djärv <[email-masked]>
>> Date: Wed, 9 Oct 2013 19:05:30 +0200
>> 
>> Hello.
>> 
>> Starting emacs with -Q -nw and then press F10 gives a crash:
>> 
>> Program received signal EXC_BAD_ACCESS, Could not access memory.
>> Reason: KERN_INVALID_ADDRESS at address: 0x000000000002fe21
>> 0x00007fff8a1cb20d in memmove$VARIANT$sse3x ()
>> #0  0x00007fff8a1cb207 in memmove$VARIANT$sse3x ()
>> #1  0x00000001000484bc in deep_copy_glyph_row (to=0x10383ae00, from=0x10383c600) at /Users/jhd/src/emacs/current/src/xdisp.c:20619
> 
> Can you tell the values of the following, after stopping at line
> 20617 of xdisp.c:
> 
>  from->used[0]
>  from->used[1]
>  from->used[2]
>  from->glyphs[0]
>  from->glyphs[1]
>  from->glyphs[2]
>  to->used[0]
>  to->used[1]
>  to->used[2]
>  to->glyphs[0]
>  to->glyphs[1]
>  to->glyphs[2]
>  sizeof(struct glyph)
>  sum_used
>  i
> 

(gdb) p from->used[0]
$1 = 30065
(gdb) p from->used[1]
$2 = 26977
(gbd) p from->used[2]
$3 = 12140
$4 = (struct glyph *) 0x10403bc00
(gdb) p from->glyphs[1]
$5 = (struct glyph *) 0x10403bbe8
(gdb) p from->glyphs[2]
$6 = (struct glyph *) 0x102a1f548
(gdb) p to->used[0]
$7 = 4
(gdb) p to->used[1]
$8 = 0
(gdb) p to->used[2]
$9 = 0
(gdb) p to->glyphs[0]
$10 = (struct glyph *) 0x4
(gdb) p to->glyphs[1]
$11 = (struct glyph *) 0x4
(gdb) p to->glyphs[2]
$12 = (struct glyph *) 0x4
(gdb) p sizeof(struct glyph)
$13 = 48
(gdb) p sum_used
$14 = 86334
(gdb) p i
$15 = 3969

These values vary if run again.   Here is another run:

$1 = 12346
$2 = 384
$3 = 1
$4 = (struct glyph *) 0x3000000000000088
$5 = (struct glyph *) 0x100f11e21
$6 = (struct glyph *) 0x10180300a
$7 = 12346
$8 = 384
$9 = 1
$10 = (struct glyph *) 0x104033e00
$11 = (struct glyph *) 0x1040c48e0
$12 = (struct glyph *) 0x1040c90e0
$13 = 48
$14 = 12731
$15 = 0

	Jan D.