GNU bug report logs -
#15555
24.3; Bidirectional display very slow with long lines
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Reported by: Jerome L Quinn <jlquinn <at> us.ibm.com>
Date: Mon, 7 Oct 2013 20:25:01 UTC
Severity: normal
Merged with 3219,
4123,
9589,
13675,
18530,
22143,
24523,
30457,
32523,
40007
Found in versions 23.1, 24.2, 24.2.93, 24.3, 24.5, 26.0.91, 27.0.50, 28.0.50
Fixed in version 29.1
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
Full log
Message #50 received at 15555 <at> debbugs.gnu.org (full text, mbox):
On 02/18/2014 08:24 PM, Eli Zaretskii wrote:
> If you show me where these calls are made, I might be able to say
> something intelligent about that. And maybe we could even discuss the
> issue and find some clever solution, if it exists.
(gdb) b bidi.c:669 ;;; at xmalloc
Breakpoint 1 at 0x500890: file ../../trunk/src/bidi.c, line 669.
(gdb) b bidi.c:756 ;;; at xfree
Breakpoint 2 at 0x500b55: file ../../trunk/src/bidi.c, line 756.
(gdb) r -Q /tmp/4000.txt
In 4000.txt, eval (goto-char 2769), then press up arrow ==>
Breakpoint 1, bidi_shelve_cache () at ../../trunk/src/bidi.c:669
669 databuf = xmalloc (alloc);
(gdb) p alloc
$1 = 292820 ;;; ~290K
(gdb) bt 8
#0 bidi_shelve_cache () at ../../trunk/src/bidi.c:669
#1 0x00000000004518d2 in move_it_in_display_line_to (it=0x7fffffff9b60, to_charpos=2769, to_x=0, op=(MOVE_TO_X | MOVE_TO_POS))
at ../../trunk/src/xdisp.c:8339
#2 0x00000000004542d7 in move_it_to (it=0x7fffffff9b60, to_charpos=2769, to_x=-1, to_y=593, to_vpos=-1, op=10)
at ../../trunk/src/xdisp.c:8941
#3 0x000000000043a193 in pos_visible_p (w=0x10e6518, charpos=2769, x=0x7fffffffa93c, y=0x7fffffffa938, rtop=0x7fffffffa94c,
rbot=0x7fffffffa948, rowh=0x7fffffffa944, vpos=0x7fffffffa940) at ../../trunk/src/xdisp.c:1409
#4 0x00000000004aba8c in Fpos_visible_in_window_p (pos=..., window=..., partially=...) at ../../trunk/src/window.c:1812
#5 0x000000000057f82b in Fposn_at_point (pos=..., window=...) at ../../trunk/src/keyboard.c:10730
#6 0x000000000060cf02 in Ffuncall (nargs=1, args=0x7fffffffab10) at ../../trunk/src/eval.c:2818
#7 0x000000000065681f in exec_byte_code (bytestr=..., vector=..., maxdepth=..., args_template=..., nargs=2, args=0x7fffffffb3b0)
at ../../trunk/src/bytecode.c:919
(More stack frames follow...)
(gdb) c
Continuing.
Breakpoint 4, bidi_unshelve_cache (databuf=0x7fffe1a16010, just_free=true) at ../../trunk/src/bidi.c:756
756 xfree (p);
etc. I can even do:
(gdb) c 1000
Will ignore next 999 crossings of breakpoint 1. Continuing.
Breakpoint 4, bidi_unshelve_cache (databuf=0x7fffe19ce010, just_free=true) at ../../trunk/src/bidi.c:756
756 xfree (p);
and the cursor is not moved yet.
Dmitry
This bug report was last modified 2 years and 305 days ago.
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