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bug#3608: BG processes killed by start-process

From: JD Smith
Subject: bug#3608: BG processes killed by start-process
Date: Thu, 18 Jun 2009 14:03:41 -0400

Start-process seems to kill off child processes of which have been put into the background.

Create a small shell script "bgtest":

sleep 121 &
exit 0

and now

(start-process "BGTEST" nil "bgtest")

Notice that the sleep process has been killed, rather than waited on.

Is this the intended behavior? Any thoughts for preventing it (other than modifying the script, which I don't control)?



In GNU Emacs 22.3.1 (i386-apple-darwin9.6.0, Motif Version 2.3.1)
 of 2009-04-29 on terrapin
Windowing system distributor `The X.Org Foundation', version 11.0.10402000 configured using `configure '--prefix=/opt/local' '--without-carbon' '--with-xpm' '--with-jpeg' '--with-tiff' '--with-gif' '--with-png' '-- with-x-toolkit=motif' 'CC=/usr/bin/gcc-4.0' 'CFLAGS=-O2' 'LDFLAGS=-L/ opt/local/lib' 'CPPFLAGS=-I/opt/local/include' 'CPP=/usr/bin/cpp-4.0''

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

Major mode: Shell-script

Minor modes in effect:
  TeX-source-specials-mode: t
  which-function-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
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: identity

Recent input:
<backspace> <backspace> <backspace> <backspace> <backspace>
/ h o m e / j d s m i t h / b i n / b g t e s t " )
<return> <down-mouse-1> <mouse-1> M-: <up> <help-echo>
<down-mouse-3> <mouse-3> <down-mouse-1> <mouse-movement>
<mouse-movement> <drag-mouse-1> <switch-frame> <down-mouse-1>
<mouse-movement> <mouse-1> C-x C-f C-g C-x C-f <M-backspace>
<M-backspace> b i n / b g <tab> t <tab> e <tab> C-x
C-f C-a <right> <right> C-k b i n / t e <tab> <return>
<down> <down> <down> <down> <up> <down> <return> <up>
d i s o w n SPC $ $ C-x C-s M-: <up> <return> <down-mouse-1>
<mouse-1> <backspace> <backspace> % % C-x C-s <down-mouse-1>
<mouse-1> M-: <up> <return> <down-mouse-1> <mouse-1>
<up> C-a C-k C-k C-x C-s <down-mouse-1> <mouse-1> <backspace>
C-x C-s M-: <up> <return> <down-mouse-1> <mouse-1>
M-: <up> C-e <left> <left> <left> <left> <left> <left>
<left> <left> <left> <right> <right> <right> <backspace>
<backspace> <right> <right> <right> <right> b g <return>
<down-mouse-1> <mouse-movement> <mouse-1> M-: <up>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <return> <down-mouse-1> <mouse-1> M-: <up>
<right> <right> <right> C-h f d <return> C-g C-h f
<return> <right> <down> <up> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> M-d M-d M-d C-d C-e <return> <switch-frame>
<switch-frame> <down-mouse-1> <mouse-movement> <mouse-1>
M-x p r o c <tab> C-h a p r o c e s s <return> M-x
l i s t - p r <tab> <return> <help-echo> <help-echo>
<down-mouse-1> <mouse-1> M-x e m a c s - C-a C-k r
e p <tab> o <tab> r <tab> <return>

Recent messages:
#<process BGTEST> [3 times]
Making completion list...
Type C-x 1 to remove help window.
#<process BGTEST>
Loading apropos...done
Type C-x 1 to remove help window.
Making completion list... [2 times]
Loading emacsbug...done

 J.D. Smith                  <==> http://tir.astro.utoledo.edu/jdsmith
 Ritter Observatory, MS 113  <==> 419-530-8528 <W>
 University of Toledo        <==> 419-530-5167 <F>
 Toledo, OH 43606            <==>

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