bug#20349: 25.0.50; C-c C-c in shell buffer occasionally dumps garbage to the screen

bug#20349: 25.0.50; C-c C-c in shell buffer occasionally dumps garbage to the screen

[Svend Sorensen]

[-- Attachment #1: Type: text/plain, Size: 3222 bytes --]

Pressing C-c C-c in a shell mode buffer will occasionally dump garbage
to the screen, and then the bash process dies. I have reproduced this
with 'emacs -Q', but it does not happen every time.

An example of a shell buffer where this happened under 'emacs -Q' is
attached.

I installed Emacs on OS X Yosemite using the following homebrew command:

brew install emacs --with-cocoa --with-glib --with-gnutls \
--with-imagemagick --with-librsvg --HEAD

In GNU Emacs 25.0.50.1 (x86_64-apple-darwin14.1.0, NS appkit-1344.72 Version 10.10.2 (Build 14C1514))
 of 2015-04-16 on svesorm0.corp.w3data.com
Repository revision: abba535271c3bd617d198c237a6fbb7d8dbb8cf7
Windowing system distributor `Apple', version 10.3.1344
Configured using:
 `configure --prefix=/usr/local/Cellar/emacs/HEAD
 --enable-locallisppath=/usr/local/share/emacs/site-lisp
 --infodir=/usr/local/Cellar/emacs/HEAD/share/info/emacs
 --with-file-notification=gfile --without-dbus --with-gnutls --with-rsvg
 --with-imagemagick --with-ns --disable-ns-self-contained'

Configured features:
JPEG RSVG IMAGEMAGICK NOTIFY ACL GNUTLS LIBXML2 ZLIB

Important settings:
  value of $LC_ALL: en_US.UTF-8
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Shell

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent messages:
"
Mark set [2 times]
Saved text until " > > > > > 
Process shell bus error: 10
"
Mark set [2 times]
Saved text until " > > > > > 
Process shell bus error: 10
"
Wrote /Users/ssorensen/emacs-shell-died.txt

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message dired format-spec
rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util help-fns mail-prsvr mail-utils help-mode easymenu shell
pcomplete comint ansi-color ring mule-util time-date tooltip eldoc
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel ns-win
tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
elisp-mode lisp-mode prog-mode register page menu-bar rfn-eshadow timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help
simple abbrev minibuffer cl-preloaded nadvice loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
make-network-process gfilenotify cocoa ns multi-tty emacs)

Memory information:
((conses 16 90162 7648)
 (symbols 48 18940 1)
 (miscs 40 73 280)
 (strings 32 14368 7704)
 (string-bytes 1 455332)
 (vectors 16 15712)
 (vector-slots 8 1045316 203461)
 (floats 8 77 203)
 (intervals 56 1102 16)
 (buffers 976 13))

[-- Attachment #2: Example of shell buffer with this problem --]
[-- Type: text/plain, Size: 2820 bytes --]

svesorm0:~ $   C-c C-c
svesorm0:~ $ > > bash: syntax error near unexpected token `('
svesorm0:~ $ > > > > > > > > > > > > > > > > > > bash: syntax error near unexpected token `)'
svesorm0:~ $ bash: j8jaÀ\x03›\x06”\x03Î: command not found
svesorm0:~ $ [1] 13724
bash: QÐ\x03ö0ǃéwk¤: command not found
bash: ,þ\x17¹\x05’\x04¥Gü: command not found
[1]+  Exit 127                QÐ\x03ö0ǃéwk¤
svesorm0:~ $ bash: ò\x12æ\x04ýþAAK~ü\x04Ö®\x04’çEÖ\x03ß\x17I~……\x14\x14O\x12…\x0f665\x12\x14: command not found
svesorm0:~ $ bash: ½”ÜP™\x03}Æß^„Ì\x17\x1f: command not found
svesorm0:~ $ bash: Â\x19UÓ: command not found
bash: T¥0,#\x0eQ¼¾\x03Ò±4ˆ\x05QX4X\x1aM:3ÕζDëÿJer‘\x06:\x1a‡éÄ\x03‚: command not found
svesorm0:~ $ bash: syntax error near unexpected token `)'
svesorm0:~ $ bash: syntax error near unexpected token `&'
svesorm0:~ $ bash: œ\x03å\x03e@0„\x03ÁšZùf: command not found
svesorm0:~ $ > > > bash: !ô\x05\x19Ç\x05Ù\x03\x0fÚ\x05Ç\x04\x17Ã\vÅ™0á\x10‘: event not found
> > > > > > > > > > bash: !"#$%: event not found
> bash: !"#$%: event not found
> > > > > > > > > > > > > > [1] 13731
bash: command substitution: line 1: syntax error near unexpected token `newline'
bash: \x11\x11\x11\x11\x18“: No such file or directory
bash: command substitution: line 1: `>'
V\f\x05\x0f¼\x18MÙ,çu\x1c: No such file or directory
bash: command substitution: line 14: unexpected EOF while looking for matching `''
bash: command substitution: line 15: syntax error: unexpected end of file
bash: command substitution: line 1: unexpected EOF while looking for matching `''
bash: command substitution: line 4: syntax error: unexpected end of file
bash: ç: command not found
bash: :hœ\x12•=n: command not found
bash: \x11^[Ç0=\x1fÆ\x03\x1d­…\x03v¹Ž\x1cBvv~N\x16–w:0n\x1ah>Ûô$
\x1e
?4D•=ß\v_Â\x04ëñ\x04¶\x03Ðæ
-'.0]0’\x03AU¥œ£5âݸ¶srݏ\vPOêô¸&ñóúc=üÞñ\x06f2b¾{‚t5ª^OjØXl¶¨[zaÒý,\x1aJ\x13±S« )«éU»WÐêÚ4ãhÿÔÔS\x7fm¿xuæQ\x1eÓúÖ¥F,ø“£\x1f&x1©A©‹Yèx^¾ª
\x05\x050b1\v0	\x06\x03U\x04\x06\x13US1\x130\x11\x06\x03U\x04
\x13
261024173941Z0\x7f1\v0	\x06\x03U\x04\x06\x13US1\x130\x11\x06\x03U\x04
\f
\x06: command not found
[1]+  Exit 1                  c°ó„*\fC\f < \x11\x11\x11\x11\x18“
˜]kY½Z^[‰³çå: command not found
svesorm0:~ $ bash: syntax error near unexpected token `)'
svesorm0:~ $ bash: syntax error near unexpected token `¸âšyÚŸ¥'
svesorm0:~ $ bash: \x13: command not found
svesorm0:~ $ [1] 13742
bash: 0$\x06\x03U\x04\v\x13\x1dApple: command not found
bash: Apple: command not found
[1]+  Exit 127                Apple Inc.1
svesorm0:~ $ bash: \x13: command not found
svesorm0:~ $ > > [1] 13745
[2] 13746
bash: Apple: command not found
bash: Æ^[[: command not found
bash: g: command not found
bash: 0$\x06\x03U\x04\v\x13\x1dApple: command not found
[1]-  Exit 127                Apple Inc.1
bash: 0‚\x04#: command not found
\x05\x03‚\x0f0‚
‚ä‘©
kÿ+üY§\x05	|\x17@V\x11\x1etÓ·‹#;G£Õo$âëÑ·pß\x0fEá'Êñmxíçµ\x17\x17¨Ü~"5Ê%ÕÙ\x0fÖkÔ¢$#\x11÷¡¬s`Æ^[[	/’²øDHð`8ž\x15õ=
svesorm0:~ $ bash: \f: command not found
svesorm0:~ $ [1] 13751
bash: Apple: command not found
bash: 0$\x06\x03U\x04\v\f\x1dApple: command not found
[1]+  Exit 127                Apple Inc.1
svesorm0:~ $ bash: \f: command not found
svesorm0:~ $ > > > > > > 
Process shell bus error: 10

bug#20349: 25.0.50; C-c C-c in shell buffer occasionally dumps garbage to the screen

[Lars Ingebrigtsen]

Svend Sorensen <svend@ciffer.net> writes:

> Pressing C-c C-c in a shell mode buffer will occasionally dump garbage
> to the screen, and then the bash process dies. I have reproduced this
> with 'emacs -Q', but it does not happen every time.
>
> An example of a shell buffer where this happened under 'emacs -Q' is
> attached.

(This bug report unfortunately got no response at the time.)

Very odd -- I can't recall seeing anything like that before.

Are you still seeing this problem in more recent versions of Emacs?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#20349: 25.0.50; C-c C-c in shell buffer occasionally dumps garbage to the screen

[Svend Sorensen]

On Thu, Dec 3, 2020, at 3:38 AM, Lars Ingebrigtsen wrote:
> Svend Sorensen <svend@ciffer.net> writes:
> 
> > Pressing C-c C-c in a shell mode buffer will occasionally dump garbage
> > to the screen, and then the bash process dies. I have reproduced this
> > with 'emacs -Q', but it does not happen every time.
> >
> > An example of a shell buffer where this happened under 'emacs -Q' is
> > attached.
> 
> (This bug report unfortunately got no response at the time.)
> 
> Very odd -- I can't recall seeing anything like that before.
> 
> Are you still seeing this problem in more recent versions of Emacs?

I have not seen this issue recently. (It has been so long I can't remember when I last saw it.) I still use shell-mode frequently, and I have been keeping up to date with the latest stable Emacs releases.

Thanks for following up. This issue can be closed.

bug#20349: 25.0.50; C-c C-c in shell buffer occasionally dumps garbage to the screen

[Lars Ingebrigtsen]

"Svend Sorensen" <svend@svends.net> writes:

> I have not seen this issue recently. (It has been so long I can't
> remember when I last saw it.) I still use shell-mode frequently, and I
> have been keeping up to date with the latest stable Emacs releases.
>
> Thanks for following up. This issue can be closed.

OK; closing.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no