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bug#15575: 24.3.50; New tty menus crash Emacs


From: Jan Djärv
Subject: bug#15575: 24.3.50; New tty menus crash Emacs
Date: Wed, 9 Oct 2013 20:17:54 +0200

Hello.

FWIW, I get the same crash on Fedora 19.

        Jan D.

9 okt 2013 kl. 19:58 skrev Jan Djärv <address@hidden>:

> Hello.
> 
> 9 okt 2013 kl. 19:41 skrev Eli Zaretskii <address@hidden>:
> 
>>> From: Jan Djärv <address@hidden>
>>> 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.
> 
> 
> 






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