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Date: Fri, 9 Mar 2012 20:52:47 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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Subject: Re: Can't reliably redirect standard output from C# program in recent Cygwin
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On Mar  9 18:47, James Johnston wrote:
> I can reproduce this:
> 
> C:\cygwin\bin>perl -e 'print "abc";'
> abc
> C:\cygwin\bin>perl -e 'print "abc";' | more
> abc
> 
> C:\cygwin\bin>perl -e 'print "abc";' | more
> abc
> 
> C:\cygwin\bin>perl -e 'print "abc";' | more
> 
> C:\cygwin\bin>perl -e 'print "abc";' | more
> 
> C:\cygwin\bin>perl -e 'print "abc";' | more
> 
> I also noticed that the failures took 1 or 2 seconds to run - a significant
> delay.  The successful runs completed "instantly".

The delay comes from writing a stackdump.

I don't quite grok the stackdump, though.  It seems to imply that the
fh->init call dtable::init_std_file_from_handle failed, but I didn't
manage to catch the problem in GDB so far.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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