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From: "Nellis, Kenneth" <Kenneth DOT Nellis AT xerox DOT com>
To: cygwin <cygwin AT cygwin DOT com>
Subject: RE: strace -f hangs forever with process who creates child process
Date: Mon, 24 Aug 2015 13:05:37 +0000
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From: Qian Hong
> I just found `strace -f` hangs forever for me.
> 
> $ uname -a
> CYGWIN_NT-6.1 fracting-PC 2.2.1(0.289/5/3) 2015-08-15 11:00 i686 Cygwin)
> 
> $ cat parent.sh
> ./child.sh
> 
> $ cat child.sh
> echo haha
> 
> $ strace -f -o out.txt bash -c parent.sh #hangs forever.

FWIW, this also seems to hang for me, but can't confirm that it 
hangs "forever", as I didn't wait that long. Ctrl/C-ing out works, 
but that takes several seconds to take effect. And then I can't 
delete out.txt:

$ rm -f out.txt
rm: cannot remove ‘out.txt’: Device or resource busy
$ 

Commands 'ps' and 'who' don't indicate any other processes, but
Task Manager shows another bash process. After killing that process
I am then able to delete out.txt.

--Ken Nellis