Cannot interrupt async shell command

[Sven Joachim]

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

* Start an async shell command: M-! sleep 100 & RET
* Switch to the buffer *Async Shell Command*
* Type C-c C-c

I got the error: Marker does not point anywhere

Backtrace looks as follows:

Debugger entered--Lisp error: (error "Marker does not point anywhere")
  shell-filter-ctrl-a-ctrl-b("")
  run-hook-with-args(shell-filter-ctrl-a-ctrl-b "")
  comint-send-input(t t)
  comint-skip-input()
  comint-interrupt-subjob()
  call-interactively(comint-interrupt-subjob)


In GNU Emacs 22.0.50.1 (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2006-08-25 on debian, modified by Debian
 (Debian emacs-snapshot package, version 1:20060824-1)
X server distributor `The X.Org Foundation', version 11.0.70000000
configured using `configure  '--build' 'i486-linux-gnu' '--host' 
'i486-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib'
'--localstatedir=/var' '--infodir=/usr/share/info' '--mandir=/usr/share/man' 
'--with-pop=yes'
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/22.0.50/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/22.0.50/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/22.0.50/leim' 

'--with-x=yes' '--with-x-toolkit=athena' '--with-toolkit-scroll-bars' 
'build_alias=i486-linux-gnu' 'host_alias=i486-linux-gnu' 'CFLAGS=-DDEBIAN -g 
-O2''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  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: de_DE.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  shell-dirtrack-mode: t
  display-time-mode: t
  auto-image-file-mode: t
  show-paren-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-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
  temp-buffer-resize-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
s e b u g <tab> <left> <left> <left> <left> <backspace>
C-g <f10> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <menu-bar> <options> <debug-on-error> C-c
C-c q C-c C-k <f10> <menu-bar> <signals> <kill> q C-x
0 <f10> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <menu-bar> <options> <debug-on-error> <next>
<prior> <f10> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <menu-bar> <options> <debug-on-error> <escape>
! s l e e p SPC 1 0 0 <return> <escape> ! <up> C-e
SPC & <return> y e s <return> C-x o C-c C-c M-x r e
p o r t - e <return>

Recent messages:
Back to top level.
Debug on Error disabled
Debug on Error enabled
Waiting for process to die...(type C-g again to kill it instantly)
(Shell command failed with error)
Quit
sleep 1000: getötet.
Entering debugger...
Loading emacsbug...done
sleep 100: finished.