[1.7] Problem - emacs fails to get shell-command output

Corinna Vinschen corinna-cygwin@cygwin.com
Mon Dec 15 13:50:00 GMT 2008

On Dec 14 16:49, Ken Brown wrote:
> On 12/11/2008 2:30 PM, Matt Wozniski wrote:
>> On Thu, Dec 11, 2008 at 1:14 PM, Ken Brown wrote:
>>> One other thing I've noticed, which I think is unrelated, is that there 
>>> is a
>>> glitch in directory listing in emacs under cygwin 1.7:  If you try to 
>>> list a
>>> directory with control-x d, very often the directory listing makes it 
>>> look
>>> like the directory is empty when it isn't.  Typing "g" (to ask emacs to
>>> redisplay the directory) usually results in a correct listing.
>>> [...]
>> With no knowledge of cygwin's internals, I'd much sooner guess the
>> changes to the pipe code...
> I should have just reported the symptom instead of trying to guess the 
> cause:  Emacs runs the shell command "ls -al" and thinks there's no output. 
>  Here's a second example.  I used emacs's "ediff" function to compare two 
> buffers, and it reported (incorrectly) that there were no differences.  So 
> it seems that emacs called on the shell to run "diff" but didn't get the 
> output.

Any chance to create a testcase which reproduces this behaviour without
involving emacs?  Emacs is hell of a testcase which I won't even touch
with gloves...


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

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