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[debbugs-tracker] bug#12745: closed (crash in bidi_pop_it during (idle)

From: GNU bug Tracking System
Subject: [debbugs-tracker] bug#12745: closed (crash in bidi_pop_it during (idle) redisplay)
Date: Sun, 10 Feb 2013 03:08:01 +0000

Your message dated Sat, 09 Feb 2013 22:07:31 -0500
with message-id <address@hidden>
and subject line Re: bug#12745: crash in bidi_pop_it during (idle) redisplay
has caused the debbugs.gnu.org bug report #12745,
regarding crash in bidi_pop_it during (idle) redisplay
to be marked as done.

(If you believe you have received this mail in error, please contact

12745: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12745
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: crash in bidi_pop_it during (idle) redisplay Date: Sat, 27 Oct 2012 20:31:08 -0700 User-agent: Mozilla/5.0 (X11; Linux i686; rv:16.0) Gecko/20121011 Thunderbird/16.0.1
[I'm forwarding this from emacs-devel; the original is at

 The rest of this message is from Ami Fischman.]

Emacs 24.2 regularly crashes on me with the backtrace below.  I usually
start it with "emacs --daemon" and then run one emacsclient on each of two
X servers (a local one on :0 and a remote one through
 This setup will be up/stable for anywhere between an hour and a few days,
and then the server aborts dumping core like this.  FWIW, emacs-version
GNU Emacs 24.2.1 (x86_64-unknown-linux-gnu, X toolkit, Xaw scroll bars)
and I built it using this this configuration:
--with-x-toolkit=lucid --with-xpm --with-jpeg --with-tiff --with-gif
--with-png --with-x --without-dbug --without-gconf

Possibly of note is that this happens when I'm not doing anything with
emacs (usually I'll come back to one of my workstations and find the emacs
process is gone and a corefile has shown up).  Both of the X servers in
question are much longer lived than the emacs processes involved.


(gdb) bt
#0  0x00007fa43b6f1707 in kill () at ../sysdeps/unix/syscall-template.S:82
#1  0x00000000004e93d2 in fatal_error_signal (sig=<optimized out>) at
#2  <signal handler called>
#3  0x00007fa43b6f1707 in kill () at ../sysdeps/unix/syscall-template.S:82
#4  0x00000000004e7452 in abort () at emacs.c:394
#5  0x00000000004923b5 in bidi_pop_it (bidi_it=<optimized out>) at
#6  0x0000000000447aa1 in pop_it (it=0x7fff2251f1e0) at xdisp.c:5769
#7  0x0000000000451f23 in next_overlay_string (it=0x7fff2251f1e0) at
#8  0x0000000000426ff7 in set_iterator_to_next (it=0x7fff2251f1e0,
reseat_p=<optimized out>) at xdisp.c:7188
#9  0x00000000004311ed in display_line (it=0x7fff2251f1e0) at xdisp.c:19519
#10 0x00000000004302d8 in try_window (window=<optimized out>, flags=1,
pos=...) at xdisp.c:16137
#11 0x000000000044ae4a in redisplay_window (window=82406597,
just_this_one_p=0) at xdisp.c:15662
#12 0x00000000004514e1 in redisplay_window_0 (window=9054) at xdisp.c:13748
#13 0x000000000055a046 in internal_condition_case_1 (bfun=0x4514c0
<redisplay_window_0>, arg=82406597, handlers=9957798, hfun=<optimized out>)
at eval.c:1552
#14 0x0000000000448376 in redisplay_windows (window=<optimized out>) at
#15 0x0000000000448385 in redisplay_windows (window=<optimized out>) at
#16 0x000000000042d3d0 in redisplay_internal () at xdisp.c:13305
#17 0x000000000042fb64 in redisplay_preserve_echo_area (from_where=9054) at
#18 0x00000000004f1a8a in detect_input_pending_run_timers
(do_display=<optimized out>) at keyboard.c:10512
#19 0x0000000000596414 in wait_reading_process_output
(time_limit=<optimized out>, microsecs=0, read_kbd=-1, do_display=1,
wait_for_cell=9755602, wait_proc=0x0, just_wait_proc=<optimized out>) at
#20 0x00000000004f0954 in kbd_buffer_get_event (kbp=<optimized out>,
end_time=<optimized out>, used_mouse_menu=0x7fff22528354, kbp=<optimized
out>, end_time=<optimized out>) at keyboard.c:3855
#21 read_char (commandflag=<optimized out>, nmaps=9, maps=<optimized out>,
prev_event=9755602, used_mouse_menu=0x7fff22528354, end_time=<optimized
out>) at keyboard.c:2801
#22 0x00000000004ec170 in read_key_sequence (bufsize=30, keybuf=<optimized
out>, prompt=<optimized out>, dont_downcase_last=<optimized out>,
can_return_switch_frame=<optimized out>, fix_current_buffer=<optimized
out>) at keyboard.c:9328
#23 0x00000000004ea909 in command_loop_1 () at keyboard.c:1449
#24 0x000000000055b680 in internal_condition_case (bfun=0x4ea490
<command_loop_1>, handlers=9807890, hfun=<optimized out>) at eval.c:1514
#25 0x00000000004fbf06 in command_loop_2 (ignore=<optimized out>) at
#26 0x000000000055b0dc in internal_catch (tag=<optimized out>,
func=0x4fbee0 <command_loop_2>, arg=9755602) at eval.c:1271
#27 0x00000000004e9c39 in command_loop () at keyboard.c:1139
#28 recursive_edit_1 () at keyboard.c:759
#29 0x00000000004e9d55 in Frecursive_edit () at keyboard.c:823
#30 0x00000000004e8acd in main (argc=<error reading variable: Cannot access
memory at address 0x0>, argv=<optimized out>) at emacs.c:1715

--- End Message ---
--- Begin Message --- Subject: Re: bug#12745: crash in bidi_pop_it during (idle) redisplay Date: Sat, 09 Feb 2013 22:07:31 -0500 User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)
Ami Fischman wrote:

> I'll sync & rebuild and will report back if I get another one of these.

Assuming that no news is good news.

--- End Message ---

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