(call-process ...) hangs in emacs

Ken Brown kbrown@cornell.edu
Thu Jul 31 17:35:00 GMT 2014

On 7/31/2014 10:51 AM, Peter Hull wrote:
> VC integration in emacs has stopped working for me in the past few
> days. Using emacs debugger I found the last function call was to
> call-process which never returns.
> I can reproduce this by evaluating in Lisp Interaction mode (using ^J)
> (call-process "pwd" nil t)
> I would expect to see the PWD and exit code but instead it just hangs
> until I Quit it (^G)
> I am using GNU Emacs 24.3.1 and confirmed cygwin and all packages up
> to date. (cygwin DLL 1.7.31)

I can't reproduce this.  I tested both emacs-X11 and emacs-w32, on both 
32-bit Cygwin and 64-bit Cygwin.  Can you think of anything on your 
system that has changed in the last few days?  And have you tried 
starting emacs with the '-Q' option to rule out a problem in your 
initialization files?

You should also attach cygcheck output, as suggested at 


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