Ctrl+C not working with windows programs in Cygwin 1.7.16

Marcin Kielar marcin.kielar@gmail.com
Thu Aug 2 19:34:00 GMT 2012


Steps to reproduce:

1. Start cygwin using cygwin.bat
2. Run `ping -t google.com`
3. Try breaking it with Ctrl+C

Expected behaviur:
The ping breaks execution and the command prompt is shown and available

Actual behaviour:
Nothing happens, ping loops until killed with `/usr/bin/kill -f PID`

Variations:
a) If, in step #1 cygwin is started with mintty (using Cygwin 
Terminal.lnk), Ctrl+C works as expected. Same with rxvt - ping breaks, 
and command prompt is shown.

b) If, in step #1 cygwin is started with console2 
(http://sourceforge.net/projects/console/), Ctrl-C behaves as in 
"actual" - i.e. does not work. This is no surprise, as console2, runs a 
hidden cmd.exe (which runs a cygwin.bat), so the behaviour should be the 
same as in pure cmd.exe.

c) If, in step #2 a bat file is run, which in turn executes Java Virtual 
Machine (a good example is an run.bat of the JBoss AS), Ctrl+C works as 
below:
   - in mintty/rxvt it appears to break the execution
     and a command prompt is show, however the JVM process keeps working
   - in cmd.exe Ctrl+C does nothing

Other:
uname -srv: CYGWIN_NT-6.1-WOW64 1.7.16(0.262/5/3) 2012-07-20 22:55
os: Windows 7 Home Pro PL 64 bit, and Windows XP Professional PL, 32 bit

-- 
Greetings to everybody, as this is my first post here.
Marcin Kielar

P.S. As for "run.bat" example for JBoss AS - I'm aware, there is a 
run.sh script. The bat is just used to show the problem.

P.S/2 This was also confirmed on Cygwin 1.7.15 and the latest snapshot 
(20120801)

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