Subject: bug#66589: 30.0.50; core dump in redisplay

From: Evgeny Zajcev <[email-masked]>
Date: Tue, 17 Oct 2023 22:34:13 +0300

вт, 17 окт. 2023 г. в 22:23, Eli Zaretskii <[email-masked]>:

> > From: Evgeny Zajcev <[email-masked]>
> > Date: Tue, 17 Oct 2023 21:11:40 +0300
> > Cc: [email-masked]
> >
> > (gdb) frame 19
> > #19 0x000055ccdf1eb141 in gui_produce_glyphs (it=0x7ffef46c5660) at
> > lisp.h:1179
> > 1179      return make_lisp_symbol (&lispsym[index]);
> > (gdb) p it->current
> > $6 = {
> >   pos = {
> >     charpos = 10098,
> >     bytepos = 14401
> >   },
> >   overlay_string_index = -1,
> >   string_pos = {
> >     charpos = -1,
> >     bytepos = -1
> >   },
> >   dpvec_index = -1
> > }
> > (gdb) p current_buffer->zv
> > No symbol "current_buffer" in current context.
> > (gdb) p current_thread->m_current_buffer
> > $7 = (struct buffer *) 0x55ccf0885fb0
> > (gdb) p current_thread->m_current_buffer->zv
> > $8 = 10106
> > (gdb) p current_thread->m_current_buffer->text->beg[10000]@106
> > $9 = "     \n    | ⮪ Yura› Позорище 🤦‍♂ у ФСБ только на Газель Хва",
> > <incomplete sequence \320>
> > (gdb)
>
> Hmm... what about this:
>
>   (gdb) frame 18
>   (gdb) p current_thread->m_current_buffer->text->gpt_byte
>   (gdb) p current_thread->m_current_buffer->zv_byte
>   (gdb) p current_thread->m_current_buffer->text->beg[14350]@100
>

(gdb) frame 18
#18 produce_glyphless_glyph (it=0x7ffef46c5660,
for_no_font=for_no_font@entry=false, acronym=acronym@entry=XIL(0)) at
xdisp.c:32165
32165             sprintf (buf, "%0*X", it->c < 0x10000 ? 4 : 6, it->c +
0u);
(gdb) p current_thread->m_current_buffer->text->gpt_byte
$10 = 5287
(gdb) p current_thread->m_current_buffer->zv_byte
$11 = 14409
(gdb) p current_thread->m_current_buffer->text->beg[14350]@100
$12 = ' ' <repeats 48 times>, "11:09\n(Д) Дени", ' ' <repeats 32 times>
(gdb)

-- 
lg