GNU bug report logs - #528
23.0.60; Segmentation fault when deleting Emacs frame

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Package: emacs;

Reported by: Lawrence Mitchell <wence <at> gmx.li>

Date: Thu, 3 Jul 2008 14:25:04 UTC

Severity: normal

Tags: moreinfo

Merged with 36

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Glenn Morris <rgm <at> gnu.org>
Subject: bug#36: marked as done (23.0.60; Segmentation fault when deleting
 Emacs frame)
[Message part 1 (text/plain, inline)]
Your message dated Mon, 7 Jul 2008 18:36:10 -0400
with message-id <18546.39514.476960.639946 <at> fencepost.gnu.org>
and subject line #528
has caused the Emacs bug report #528,
regarding 23.0.60; Segmentation fault when deleting Emacs frame
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact don <at> donarmstrong.com
immediately.)


-- 
528: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=528
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
[Message part 2 (message/rfc822, inline)]
From: Lawrence Mitchell <wence <at> gmx.li>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.0.60; Segmentation fault when deleting Emacs frame
Date: Tue, 04 Mar 2008 10:50:11 +0000
[I sent the bug a few weeks ago, but didn't get any response.  The
behaviour hasn't changed so am resending].

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

When starting emacs in a terminal and then using emacsclient to create
an X frame, attempting to delete the X frame causes a segmentation fault
in FcPatternDestroy() when using the following recipe:

1) emacs -Q -nw -fn 'Bitstream Vera Sans Mono-10' -l ~/bug.el

;; In another terminal create an X frame
2) emacsclient -c

;; Delete the frame
3) C-x 5 0

4) Segmentation fault

Cheers,

Lawrence

Possibly relevant Xresources:

*font:	-misc-fixed-medium-r-normal-*-16-160-*-*-*-*-iso8859-*
Emacs.FontBackend:	xft
Emacs.font:	Bitstream Vera Sans Mono-10
Xft.antialias:	1
Xft.dpi:	96.000000
Xft.hinting:	1
Xft.hintstyle:	hintmedium
Xft.rgba:	none


bug.el:
---begin---
(server-start)

(custom-set-faces
 '(default ((t (:family "mono"))))
 '(bold ((t (:family "mono"))))
 '(mode-line ((t (:inherit default))))
 '(mode-line-inactive ((t (:inherit bold)))))
---end---

fontconfig is version 2.2.3

Backtrace:

#0  0x00530b64 in FcPatternDestroy () from /usr/lib/libfontconfig.so.1
No symbol table info available.
#1  0x082186b6 in ftfont_free_entity (entity=139370620)
    at /scratch/s0198183/src/emacs/src/ftfont.c:790
	val = 147789322
	pattern = (FcPattern *) 0x853c338
#2  0x0820fe90 in font_clear_cache (f=0x850d8e0, cache=138425381, 
    driver=0x83ad700) at /scratch/s0198183/src/emacs/src/font.c:2330
	objlist = 138111177
	entity = 139370620
	vec = 141504956
	i = 0
	tail = 147963365
	elt = 147963373
#3  0x0820fc8b in font_finish_cache (f=0x850d8e0, driver=0x83ad700)
    at /scratch/s0198183/src/emacs/src/font.c:2268
	cache = 147922285
	val = 138425373
	tmp = 138425389
#4  0x082115fa in font_update_drivers (f=0x850d8e0, new_drivers=138111177)
    at /scratch/s0198183/src/emacs/src/font.c:3011
	active_drivers = 138111177
	list = (struct font_driver_list *) 0x8bbb1c8
#5  0x08060c2f in Fdelete_frame (frame=139516132, force=138111177)
    at /scratch/s0198183/src/emacs/src/frame.c:1495
	f = (struct frame *) 0x850d8e0
	sf = (struct frame *) 0x83d6868
	kb = (struct kboard *) 0x0
	minibuffer_selected = 0
#6  0x081b506f in Ffuncall (nargs=1, args=0xbff38010)
    at /scratch/s0198183/src/emacs/src/eval.c:3028
	fun = 136572964
	original_fun = 138146385
	funcar = 138111177
	numargs = 0
	lisp_numargs = 135473710
	val = -1074561096
	backtrace = {
  next = 0xbff381e0, 
  function = 0xbff38010, 
  args = 0xbff38014, 
  nargs = 0, 
  evalargs = 0 '\0', 
  debug_on_exit = 0 '\0'
}
	internal_args = (Lisp_Object *) 0xbff37f40
	i = 2
#7  0x081b0b60 in Fcall_interactively (function=138146385, 
    record_flag=138111177, keys=138149596)
    at /scratch/s0198183/src/emacs/src/callint.c:842
	val = 8192
	args = (Lisp_Object *) 0xbff38010
	visargs = (Lisp_Object *) 0xbff37ff0
	specs = 136596851
	filter_specs = 136596851
	teml = 0
	up_event = 138111177
	enable = 138111177
	speccount = 3
	next_event = 3
	prefix_arg = 138111177
	string = (unsigned char *) 0xbff38030 ""
	tem = (unsigned char *) 0xbff38030 ""
	varies = (int *) 0xbff37fd0
	i = 1
	j = 0
	count = 0
	foo = 0
	prompt1 = "\000 ", '\0' <repeats 14 times>, "$\360#\bQ\362;\b\310\177\363\277\311h;\bQ\362;\b\000\000\000\000\000\000\000\000\311h;\b", '\0' <repeats 12 times>, "\311h;\b", '\0' <repeats 12 times>, "Q\362;\b\000\000\000\000\000\000\000\000H\200\363\277\326h\024\b\311h;\b"
	tem1 = 0x0
	arg_from_tty = 0
	gcpro1 = {
  next = 0x0, 
  var = 0x0, 
  nvars = 0
}
	gcpro2 = {
  next = 0x0, 
  var = 0x0, 
  nvars = 0
}
	gcpro3 = {
  next = 0x0, 
  var = 0x0, 
  nvars = 1
}
	gcpro4 = {
  next = 0x0, 
  var = 0x0, 
  nvars = 1
}
	gcpro5 = {
  next = 0x0, 
  var = 0x0, 
  nvars = 0
}
	key_count = 3
	record_then_fail = 0
	save_this_command = 138146385
	save_last_command = 138111177
	save_this_original_command = 138146385
	save_real_this_command = 138146385
#8  0x081b5099 in Ffuncall (nargs=4, args=0xbff38270)
    at /scratch/s0198183/src/emacs/src/eval.c:3031
	fun = 137797484
	original_fun = 138274025
	funcar = 138146385
	numargs = 3
	lisp_numargs = 0
	val = 0
	backtrace = {
  next = 0x0, 
  function = 0xbff38270, 
  args = 0xbff38274, 
  nargs = 3, 
  evalargs = 0 '\0', 
  debug_on_exit = 0 '\0'
}
	internal_args = (Lisp_Object *) 0xbff38274
	i = 0
#9  0x081b4cc0 in call3 (fn=138274025, arg1=138146385, arg2=138111177, 
    arg3=138111177) at /scratch/s0198183/src/emacs/src/eval.c:2855
	ret_ungc_val = 138111177
	gcpro1 = {
  next = 0xbff38268, 
  var = 0x81bd11b, 
  nvars = 4
}
#10 0x08141e1f in Fcommand_execute (cmd=138146385, record_flag=138111177, 
    keys=138111177, special=138111177)
    at /scratch/s0198183/src/emacs/src/keyboard.c:10443
	final = 136572964
	tem = 138111177
	prefixarg = 138111177
#11 0x08134680 in command_loop_1 ()
    at /scratch/s0198183/src/emacs/src/keyboard.c:1908
	scount = 2
	cmd = 138146385
	lose = 335544320
	nonundocount = 0
	keybuf = {192, 424, 384, -1208359664, 8144949, 134535965, 1908692, 
  1910436, 134535965, -1074559928, 1850786, 134523436, 0, -1074560076, 
  -1074560384, 0, 0, 0, 1, 135885289, 148442560, 4443068, -1074559724, 
  -1074560064, 138111177, 143418153, 138421181, 136831556, 0, 0}
	i = 3
	prev_modiff = 1
	prev_buffer = (struct buffer *) 0x83bcdc0
	already_adjusted = 0
#12 0x081b2d90 in internal_condition_case (bfun=0x813306f <command_loop_1>, 
    handlers=138155409, hfun=0x8132a86 <cmd_error>)
    at /scratch/s0198183/src/emacs/src/eval.c:1494
	val = 138421181
	c = {
  tag = 138111177, 
  val = 138111177, 
  next = 0xbff38540, 
  gcpro = 0x0, 
  jmp = {{
      __jmpbuf = {-1074559168, -1074558572, -1074558688, -1074559736, 
        -1074560032, 135998751}, 
      __mask_was_saved = 0, 
      __saved_mask = {
        __val = {0, 0, 0, 0, 0, 0, 4456436, 3220408724, 3220408608, 
          3220407432, 4443187, 29, 3220407600, 3220407456, 3220408128, 
          3220407752, 135587193, 29, 3220407600, 3220407456, 3220407776, 
          3220408724, 3220408608, 3220407624, 135587398, 3220407776, 
          3220407488, 128, 1908692, 0, 0, 3220407368}
      }
    }}, 
  backlist = 0x0, 
  handlerlist = 0x0, 
  lisp_eval_depth = 0, 
  pdlcount = 2, 
  poll_suppress_count = 1, 
  interrupt_input_blocked = 0, 
  byte_stack = 0x0
}
	h = {
  handler = 138155409, 
  var = 138111177, 
  chosen_clause = 0, 
  tag = 0xbff38420, 
  next = 0x0
}
#13 0x08132dcc in command_loop_2 ()
    at /scratch/s0198183/src/emacs/src/keyboard.c:1370
	val = 0
#14 0x081b2838 in internal_catch (tag=138150257, 
    func=0x8132dae <command_loop_2>, arg=138111177)
    at /scratch/s0198183/src/emacs/src/eval.c:1230
	c = {
  tag = 138150257, 
  val = 138111177, 
  next = 0x0, 
  gcpro = 0x0, 
  jmp = {{
      __jmpbuf = {-1074559168, -1074558572, -1074558688, -1074559464, 
        -1074559696, 135997478}, 
      __mask_was_saved = 0, 
      __saved_mask = {
        __val = {1, 3220407816, 134902851, 138242904, 0, 0, 0, 0, 6727712, 0, 
          0, 0, 2, 0, 0, 0, 22, 176, 6721524, 3220407800, 135913267, 
          138340873, 138337394, 138111177, 138137024, 3220407788, 138111177, 
          3220407800, 138337394, 138337394, 138111177, 3220408608}
      }
    }}, 
  backlist = 0x0, 
  handlerlist = 0x0, 
  lisp_eval_depth = 0, 
  pdlcount = 2, 
  poll_suppress_count = 1, 
  interrupt_input_blocked = 0, 
  byte_stack = 0x0
}
#15 0x08132d80 in command_loop ()
    at /scratch/s0198183/src/emacs/src/keyboard.c:1349
No locals.
#16 0x08132696 in recursive_edit_1 ()
    at /scratch/s0198183/src/emacs/src/keyboard.c:958
	count = 1
	val = 135473178
#17 0x081327fe in Frecursive_edit ()
    at /scratch/s0198183/src/emacs/src/keyboard.c:1020
	count = 0
	buffer = 138111177
#18 0x081310ef in main (argc=5, argv=0xbff38994)
    at /scratch/s0198183/src/emacs/src/emacs.c:1787
	dummy = 6721524
	stack_bottom_variable = 8 '\b'
	do_initial_setlocale = 1
	skip_args = 1
	rlim = {
  rlim_cur = 10485760, 
  rlim_max = 18446744073709551615
}
	no_loadup = 0
	junk = 0x0

Lisp Backtrace:
"delete-frame" (0xbff38014)
"call-interactively" (0xbff38274)



If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/scratch/s0198183/applications/emacs-trunk/share/emacs/23.0.60/etc/DEBUG for instructions.


In GNU Emacs 23.0.60.5 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2008-03-04 on lamacq.ph.ed.ac.uk
Windowing system distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure  '--prefix=/scratch/s0198183/applications/emacs-trunk/' '--enable-font-backend' '--with-xft' '-C' 'CFLAGS=-ggdb3 -O0''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t


Recent input:
M-x r e p o r t - e m <tab> <return>



[Message part 3 (message/rfc822, inline)]
From: Glenn Morris <rgm <at> gnu.org>
To: 528-done <at> debbugs.gnu.org
Subject: #528
Date: Mon, 7 Jul 2008 18:36:10 -0400
> Having recently updated my Emacs (on 2008-07-01), I find that I can
> no longer trigger this bug. It appears it has been fixed somewhere
> along the lines.

Hence closing this bug.


This bug report was last modified 17 years and 14 days ago.

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