skewer-repl crashes Emacs on Windows 7 for certain inputs

[NateEag]

I've started playing with Skewer's JS REPL, having mostly just used it for CSS work since I discovered it.

I have found a way to crash Emacs with it on Windows 7. It's not hard to avoid, but genuine crashes are nasty things, so I thought I'd file a report.

Start Emacs (emacs-version output is "GNU Emacs 24.3.1 (i386-mingw-nt6.1.7601) of 2013-03-17 on MARVIN").

Execute the run-skewer command.

Execute 'skewer-repl'.

In the new REPL, press C-d.

A dialog box with the following message appears:

A fatal error has occurred!

Would you like to attach a debugger?

Select YES to debug, NO to abort Emacs

(type "gdb -p <emacs-PID> and "continue" inside GDB before clicking YES.)

and of course Emacs shuts down when you say No (I don't have GDB installed on this box).

[skeeto]

Thanks for the bug report. I was able to narrow it down to this:

(with-temp-buffer
  (start-process "crash-emacs-bug" (current-buffer) nil)
  (process-send-eof))

Uses `start-process' to create a PTY process (what does this do in Windows?) which crashes Emacs when sent an EOF. I'll send this on to the Emacs bug mailing list.

[skeeto]

Here's the Emacs bug report:

http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16152

[NateEag]

Excellent. Thanks very much for passing it on.