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Date: Tue, 03 Oct 2006 09:31:58 -0400
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
Reply-To: cygwin AT cygwin DOT com
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To: cygwin AT cygwin DOT com
Subject: Re: 1.5.21 Forked background processes
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Steve wrote:
> Larry Hall (Cygwin <reply-to-list-only-lh <at> cygwin.com> writes:
> 
>>> file1.sh:
>>> -----------------------------------------------
>>> #!/usr/bin/bash
>>>
>>> ./file2.sh &
>>>
>>> ------------------------------------------------
>>>
>>> file2.sh
>>> ------------------------------------------------
>>> #!/usr/bin/bash
>>>
>>> while [ 1 ]
>>> do
>>>      val=`echo $val`
>>>      val=$((val + 1))
>>>      echo $val
>>> done
>>> ------------------------------------------------
> 
> Thanks for your response. I'm still running into this with 1.5.21. The
> background process has to be ran from a script, as in the example I provided
> above. If you kick the script from the command line, this problem does not
> occur. If you run the example above with ./file1.sh, you should see the 
> problem. I didn't run into this with DLL version 1.5.18. Here is the bash 
> and DLL versions of both:
> 
> Problem DLL and Bash versions:
> 
> $ bash --version
> GNU bash, version 3.1.17(8)-release (i686-pc-cygwin)
> Copyright (C) 2005 Free Software Foundation, Inc.
> 
>     Cygwin DLL version info:
>         DLL version: 1.5.21
>         DLL epoch: 19
>         DLL bad signal mask: 19005
>         DLL old termios: 5
>         DLL malloc env: 28
>         API major: 0
>         API minor: 156
>         Shared data: 4
>         DLL identifier: cygwin1
>         Mount registry: 2
>         Cygnus registry name: Cygnus Solutions
>         Cygwin registry name: Cygwin
>         Program options name: Program Options
>         Cygwin mount registry name: mounts v2
>         Cygdrive flags: cygdrive flags
>         Cygdrive prefix: cygdrive prefix
>         Cygdrive default prefix:
>         Build date: Sun Jul 30 14:21:47 EDT 2006
>         Shared id: cygwin1S4
> ////////////////////////////////////////////////////
>  
> No Problem DLL and Bash versions:
> 
> $ bash --version
> GNU bash, version 3.00.16(11)-release (i686-pc-cygwin)
> Copyright (C) 2004 Free Software Foundation, Inc.
> 
> 
>     Cygwin DLL version info:
>         DLL version: 1.5.18
>         DLL epoch: 19
>         DLL bad signal mask: 19005
>         DLL old termios: 5
>         DLL malloc env: 28
>         API major: 0
>         API minor: 132
>         Shared data: 4
>         DLL identifier: cygwin1
>         Mount registry: 2
>         Cygnus registry name: Cygnus Solutions
>         Cygwin registry name: Cygwin
>         Program options name: Program Options
>         Cygwin mount registry name: mounts v2
>         Cygdrive flags: cygdrive flags
>         Cygdrive prefix: cygdrive prefix
>         Cygdrive default prefix:
>         Build date: Sat Jul 2 20:30:04 EDT 2005
>         Shared id: cygwin1S4
> //////////////////////////////////////////////////////
> 
> I also tried Bash 3.00.16(11) with DLL version 1.5.21 and still had a
> problem. I see this on several machines so it's not isolated to one.
> 
> Thanks for your help and any info you can provide,


I have tried this locally with 1.5.21 and bash 3.1.17-8 using the scripts
you provided and don't see the issue you report.  That's not to say that
there isn't an issue.  Only that I cannot reproduce it.  Maybe it's worthwhile
for you to review the output of 'cygcheck -srv' and see if something there
catches your attention.  If not, sending it to the list might spot something.


-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

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