--- Begin Message ---
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Subject: |
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":
#!/bin/sh
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)?
Thanks.
----------------
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...
Quit
Type C-x 1 to remove help window.
#<process BGTEST>
Quit
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 <==>
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#3608: BG processes killed by start-process |
|
Date: |
Sat, 17 Sep 2011 08:58:18 +0200 |
|
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux) |
JD Smith <address@hidden> writes:
> Start-process seems to kill off child processes of which have been put
> into the background.
>
> Create a small shell script "bgtest":
>
> #!/bin/sh
> sleep 121 &
> exit 0
>
> and now
>
> (start-process "BGTEST" nil "bgtest")
>
> Notice that the sleep process has been killed, rather than waited on.
That's not a bug. The session created for the process is closed when
the process exits, which causes the kernel to send SIGHUP to all
remaining processes in the session.
Andreas.
--
Andreas Schwab, address@hidden
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
--- End Message ---