23.0.50; C-z crashes Emacs

23.0.50; C-z crashes Emacs

[Leo]

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Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

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

 1) Start 'emacs -nw -q'
 2) M-x xterm-mouse-mode
 3) M-x server-start
 4) In another xterm, start 'emacsclient -t'
 5) C-z

Emacs segfault.

This was tested with latest CVS checkout.

Backtrace:

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Starting program: /home/emacs/src/emacs -nw
[Thread debugging using libthread_db enabled]
[New Thread -1208166688 (LWP 19177)]
[Switching to Thread -1208166688 (LWP 19177)]
[Detaching after fork from child process 19181. (Try `set detach-on-fork off'.)]
[Detaching after fork from child process 19182.]
[Detaching after fork from child process 19183.]
[Detaching after fork from child process 19184.]
[Detaching after fork from child process 19185.]
[Detaching after fork from child process 19187.]

Program received signal SIGSEGV, Segmentation fault.
0x44740b61 in fwrite () from /lib/libc.so.6
#0  0x44740b61 in fwrite () from /lib/libc.so.6
#1  0x08055f5a in Fsend_string_to_terminal (string=170857411, terminal=16) at dispnew.c:6464
#2  0x0816246a in Ffuncall (nargs=3, args=0xbfd178b0) at eval.c:3039
#3  0x0818d48a in Fbyte_code (bytestr=170857395, vector=170856444, maxdepth=24) at bytecode.c:679
#4  0x08161efa in funcall_lambda (fun=170856580, nargs=1, arg_vector=0xbfd17a0c) at eval.c:3223
#5  0x08162301 in Ffuncall (nargs=2, args=0xbfd17a08) at eval.c:3093
#6  0x08163971 in run_hook_with_args (nargs=2, args=0xbfd17a08, cond=to_completion) at eval.c:2695
#7  0x080b99c5 in Fsuspend_tty (tty=137551137) at term.c:2273
#8  0x08162451 in Ffuncall (nargs=1, args=0xbfd17ab0) at eval.c:3036
#9  0x0818d48a in Fbyte_code (bytestr=136553395, vector=136553412, maxdepth=24) at bytecode.c:679
#10 0x08161efa in funcall_lambda (fun=136553364, nargs=0, arg_vector=0xbfd17bd4) at eval.c:3223
#11 0x08162301 in Ffuncall (nargs=1, args=0xbfd17bd0) at eval.c:3093
#12 0x08163d39 in apply1 (fn=139792089, arg=137551137) at eval.c:2777
#13 0x0815e3ec in Fcall_interactively (function=139792089, record_flag=137551137, keys=137599356) at callint.c:385
#14 0x080fe093 in Fcommand_execute (cmd=139792089, record_flag=137551137, keys=137551137, special=137551137) at keyboard.c:10335
#15 0x08109ccb in command_loop_1 () at keyboard.c:1946
#16 0x08160e8b in internal_condition_case (bfun=0x8109950 <command_loop_1>, handlers=137617697, hfun=0x8104260 <cmd_error>) at eval.c:1494
#17 0x081036d3 in command_loop_2 () at keyboard.c:1405
#18 0x08160f4a in internal_catch (tag=137600017, func=0x81036b0 <command_loop_2>, arg=137551137) at eval.c:1229
#19 0x081040c7 in command_loop () at keyboard.c:1384
#20 0x0810442a in recursive_edit_1 () at keyboard.c:993
#21 0x08104561 in Frecursive_edit () at keyboard.c:1055
#22 0x080f9d4b in main (argc=2, argv=0xbfd18474) at emacs.c:1778

Lisp Backtrace:
"send-string-to-terminal" (0xa2f13c3)
"turn-off-xterm-mouse-tracking-on-terminal" (0x10)
"suspend-tty" (0x832dd51)
"suspend-frame" (0x832dd21)
"call-interactively" (0x8550ed9)
"send-string-to-terminal" (0xa2f13c3)
"turn-off-xterm-mouse-tracking-on-terminal" (0x10)
"suspend-tty" (0x832dd51)
"suspend-frame" (0x832dd21)
"call-interactively" (0x8550ed9)
#0  0x44740b61 in fwrite () from /lib/libc.so.6
No symbol table info available.
#1  0x08055f5a in Fsend_string_to_terminal (string=170857411, terminal=16) at dispnew.c:6464
	t = <value optimized out>
	tty = (struct tty_display_info *) 0xa8da8d0
#2  0x0816246a in Ffuncall (nargs=3, args=0xbfd178b0) at eval.c:3039
	fun = <value optimized out>
	original_fun = 137673185
	funcar = <value optimized out>
	numargs = 2
	val = <value optimized out>
	backtrace = {
  next = 0xbfd17998, 
  function = 0xbfd178b0, 
  args = 0xbfd178b4, 
  nargs = 2, 
  evalargs = 0 '\0', 
  debug_on_exit = 0 '\0'
}
	internal_args = (Lisp_Object *) 0xbfd178b4
	i = <value optimized out>
#3  0x0818d48a in Fbyte_code (bytestr=170857395, vector=170856444, maxdepth=24) at bytecode.c:679
	v1 = <value optimized out>
	v2 = <value optimized out>
	op = 0
	vectorp = (Lisp_Object *) 0xa2f1000
	stack = {
  pc = 0xa2da748 "\207", 
  top = 0xbfd178b8, 
  bottom = 0xbfd178b0, 
  byte_string = 170857395, 
  byte_string_start = 0xa2da738 "\b\205\020", 
  constants = 170856444, 
  next = 0xbfd17af0
}
	top = <value optimized out>
	result = <value optimized out>
#4  0x08161efa in funcall_lambda (fun=170856580, nargs=1, arg_vector=0xbfd17a0c) at eval.c:3223
	val = <value optimized out>
	syms_left = <value optimized out>
	next = <value optimized out>
	i = 1
	optional = 0
	rest = 0
#5  0x08162301 in Ffuncall (nargs=2, args=0xbfd17a08) at eval.c:3093
	fun = 170856580
	original_fun = 170867161
	funcar = <value optimized out>
	numargs = 1
	val = <value optimized out>
	backtrace = {
  next = 0xbfd17a78, 
  function = 0xbfd17a08, 
  args = 0xbfd17a0c, 
  nargs = 1, 
  evalargs = 0 '\0', 
  debug_on_exit = 0 '\0'
}
	internal_args = (Lisp_Object *) 0xbfd17a0c
	i = <value optimized out>
#6  0x08163971 in run_hook_with_args (nargs=2, args=0xbfd17a08, cond=to_completion) at eval.c:2695
	sym = 137723289
	val = 0
	ret = 137551137
	globals = <value optimized out>
#7  0x080b99c5 in Fsuspend_tty (tty=137551137) at term.c:2273
	args = {170867161, 16}
	t = (struct terminal *) 0xa89fe10
	f = (FILE *) 0xa8bf950
#8  0x08162451 in Ffuncall (nargs=1, args=0xbfd17ab0) at eval.c:3036
	fun = <value optimized out>
	original_fun = 1
	funcar = <value optimized out>
	numargs = 0
	val = <value optimized out>
	backtrace = {
  next = 0xbfd17b98, 
  function = 0xbfd17ab0, 
  args = 0xbfd17ab4, 
  nargs = 0, 
  evalargs = 0 '\0', 
  debug_on_exit = 0 '\0'
}
	internal_args = (Lisp_Object *) 0xbfd17a40
	i = <value optimized out>
#9  0x0818d48a in Fbyte_code (bytestr=136553395, vector=136553412, maxdepth=24) at bytecode.c:679
	v1 = <value optimized out>
	v2 = <value optimized out>
	op = 0
	vectorp = (Lisp_Object *) 0x823a3c8
	stack = {
  pc = 0x829800a "\202'", 
  top = 0xbfd17ab0, 
  bottom = 0xbfd17ab0, 
  byte_string = 136553395, 
  byte_string_start = 0x8297fe8 "\301\302 !\211\030\303=\203\020", 
  constants = 136553412, 
  next = 0x0
}
	top = <value optimized out>
	result = <value optimized out>
#10 0x08161efa in funcall_lambda (fun=136553364, nargs=0, arg_vector=0xbfd17bd4) at eval.c:3223
	val = <value optimized out>
	syms_left = <value optimized out>
	next = <value optimized out>
	i = 0
	optional = 137551137
	rest = -1076790328
#11 0x08162301 in Ffuncall (nargs=1, args=0xbfd17bd0) at eval.c:3093
	fun = 136553364
	original_fun = 139792089
	funcar = <value optimized out>
	numargs = 0
	val = <value optimized out>
	backtrace = {
  next = 0xbfd17d08, 
  function = 0xbfd17bd0, 
  args = 0xbfd17bd4, 
  nargs = 0, 
  evalargs = 0 '\0', 
  debug_on_exit = 0 '\0'
}
	internal_args = (Lisp_Object *) 0xbfd17bd4
	i = <value optimized out>
#12 0x08163d39 in apply1 (fn=139792089, arg=137551137) at eval.c:2777
	ret_ungc_val = 8
#13 0x0815e3ec in Fcall_interactively (function=139792089, record_flag=137551137, keys=137599356) at callint.c:385
	values = 1
	input = <value optimized out>
	args = <value optimized out>
	visargs = <value optimized out>
	specs = 137551137
	filter_specs = <value optimized out>
	teml = <value optimized out>
	up_event = <value optimized out>
	enable = 137551137
	next_event = <value optimized out>
	prefix_arg = 137551137
	string = <value optimized out>
	tem = <value optimized out>
	varies = <value optimized out>
	i = <value optimized out>
	j = <value optimized out>
	foo = <value optimized out>
	prompt1 = '\0' <repeats 99 times>
	arg_from_tty = <value optimized out>
	key_count = 1
	record_then_fail = <value optimized out>
	save_this_command = 139792089
	save_last_command = 137551137
	save_this_original_command = 139792089
	save_real_this_command = 139792089
#14 0x080fe093 in Fcommand_execute (cmd=139792089, record_flag=137551137, keys=137551137, special=137551137) at keyboard.c:10335
	final = 136553364
	tem = <value optimized out>
	prefixarg = 137551137
	backtrace = {
  next = 0x0, 
  function = 0x8320218, 
  args = 0xbfd17d30, 
  nargs = 1, 
  evalargs = 0 '\0', 
  debug_on_exit = 0 '\0'
}
#15 0x08109ccb in command_loop_1 () at keyboard.c:1946
	cmd = <value optimized out>
	lose = <value optimized out>
	nonundocount = 0
	keybuf = {208, 1, 1, 0, 1, -1076789840, 1149472756, 140001704, -1076789840, 1148500410, -1076789688, 0, 1149472756, 1151599692, 
  140001704, -1076789808, 1, -1076789632, 1148085840, 0, -1076789800, -1076789952, 0, 276955136, 137551137, 138161545, 0, 137861232, 
  137861216, -1076789768}
	i = <value optimized out>
	prev_modiff = <value optimized out>
	prev_buffer = <value optimized out>
	already_adjusted = 0
#16 0x08160e8b in internal_condition_case (bfun=0x8109950 <command_loop_1>, handlers=137617697, hfun=0x8104260 <cmd_error>) at eval.c:1494
	val = <value optimized out>
	c = {
  tag = 137551137, 
  val = 137551137, 
  next = 0xbfd17f20, 
  gcpro = 0x0, 
  jmp = {{
      __jmpbuf = {0, 137861232, 137861216, -1076789528, 1617207760, -293287745}, 
      __mask_was_saved = 0, 
      __saved_mask = {
        __val = {3218177624, 135580887, 3218177860, 139947304, 15, 15, 3218177860, 4294967295, 3218177672, 135581536, 3218177860, 15, 
          3218177660, 3218177656, 0, 134537070, 15, 15, 3218177860, 137551137, 3218177704, 135581598, 3218177860, 15, 2, 16718, 1148684992, 
          800, 3218178120, 135649483, 3218177860, 139913283}
      }
    }}, 
  backlist = 0x0, 
  handlerlist = 0x0, 
  lisp_eval_depth = 0, 
  pdlcount = 2, 
  poll_suppress_count = 1, 
  interrupt_input_blocked = 0, 
  byte_stack = 0x0
}
	h = {
  handler = 137617697, 
  var = 137551137, 
  chosen_clause = 0, 
  tag = 0xbfd17e0c, 
  next = 0x0
}
#17 0x081036d3 in command_loop_2 () at keyboard.c:1405
	val = 8
#18 0x08160f4a in internal_catch (tag=137600017, func=0x81036b0 <command_loop_2>, arg=137551137) at eval.c:1229
	c = {
  tag = 137600017, 
  val = 137551137, 
  next = 0x0, 
  gcpro = 0x0, 
  jmp = {{
      __jmpbuf = {0, 137861232, 137861216, -1076789272, 1617330640, -293152065}, 
      __mask_was_saved = 0, 
      __saved_mask = {
        __val = {775370541, 3629926, 0 <repeats 12 times>, 540091136, 542133587, 137735754, 137735752, 137739016, 3218177992, 135606732, 
          137739017, 137735754, 137551137, 137583000, 137551161, 2, 0, 137739016, 137739017, 137551137, 3218178056}
      }
    }}, 
  backlist = 0x0, 
  handlerlist = 0x0, 
  lisp_eval_depth = 0, 
  pdlcount = 2, 
  poll_suppress_count = 1, 
  interrupt_input_blocked = 0, 
  byte_stack = 0x0
}
#19 0x081040c7 in command_loop () at keyboard.c:1384
No locals.
#20 0x0810442a in recursive_edit_1 () at keyboard.c:993
	val = <value optimized out>
#21 0x08104561 in Frecursive_edit () at keyboard.c:1055
	buffer = 137551137
#22 0x080f9d4b in main (argc=2, argv=0xbfd18474) at emacs.c:1778
	tz = 0x0
	dummy = -1076788248
	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:
"send-string-to-terminal" (0xa2f13c3)
"turn-off-xterm-mouse-tracking-on-terminal" (0x10)
"suspend-tty" (0x832dd51)
"suspend-frame" (0x832dd21)
"call-interactively" (0x8550ed9)
The program is running.  Exit anyway? (y or n) 

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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
/usr/local/packages/emacs/share/emacs/23.0.50/etc/DEBUG for instructions.


In GNU Emacs 23.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.10.14, multi-tty)
 of 2007-09-01 on Fedora
configured using `configure  '--prefix=/usr/local/packages/emacs' '--with-kerberos5' '--enable-locallisppath=/usr/local/share/emacs/site-lisp' '--without-toolkit-scroll-bars' '--with-xft' '--enable-font-backend' '--with-x-toolkit=yes''

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
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  auto-insert-mode: t
  dired-omit-mode: t
  recentf-mode: t
  icomplete-mode: t
  show-paren-mode: t
  savehist-mode: t
  xterm-mouse-mode: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  display-time-mode: t
  minibuffer-indicate-depth-mode: t
  partial-completion-mode: t
  which-function-mode: t
  shell-dirtrack-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
ESC [ > 0 ; 2 2 7 ; 0 c C-x g n n n n n n n p ESC x 
r e p o r TAB RET

Recent messages:
nnimap: Checking mailboxes...done
Reading active file from archive via nnfolder...
Opening nnfolder server on archive...done
Reading active file from archive via nnfolder...done
Checking new news...
Opening nntp server on nntp-serv.cam.ac.uk...done
Checking new news...done
Loading gnus-topic...done
Loading emacsbug...done
Loading skeleton...done

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Re: 23.0.50; C-z crashes Emacs

[Richard Stallman]

I would guess this was fixed by Stefan's change to make
terminals a data type.  Does it fail in the latest sources?

     1) Start 'emacs -nw -q'
     2) M-x xterm-mouse-mode
     3) M-x server-start
     4) In another xterm, start 'emacsclient -t'
     5) C-z

    Emacs segfault.

Re: 23.0.50; C-z crashes Emacs

[Leo]

On 2007-09-23 22:55 +0100, Richard Stallman wrote:
> I would guess this was fixed by Stefan's change to make
> terminals a data type.  Does it fail in the latest sources?

It looks like it has been fixed.

>      1) Start 'emacs -nw -q'
>      2) M-x xterm-mouse-mode
>      3) M-x server-start
>      4) In another xterm, start 'emacsclient -t'
>      5) C-z
>
>     Emacs segfault.

-- 
.:  Leo  :.  [ sdl.web AT gmail.com ]  .:  [ GPG Key: 9283AA3F ]  :.

                                                 I use GNU Emacs  <=
                              http://www.gnu.org/software/emacs/  <=

Re: 23.0.50; C-z crashes Emacs

[Dan Nicolaescu]

Richard Stallman <rms@gnu.org> writes:

  > I would guess this was fixed by Stefan's change to make
  > terminals a data type.  Does it fail in the latest sources?

No, it was fixed by my change to first run suspend-tty-functions and
then reset the terminal descriptors...