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On Tue, Aug 14, 2012 at 12:48:03PM +0000, Adam Dinwoodie wrote:Christopher Faylor wrote:On Fri, Aug 10, 2012 at 06:31:25AM +0000, Achim Gratz wrote:Daniel Colascione writes:It works for me in bash. I don't have tcsh installed, but I don't see why SIGINT would work differently there.
Yes, it works in bash for me, too. Tcsh does something that apparently breaks with the new snapshot, but since I don't get any error messages, it's hard to tell what that might be.
You're not really giving us much to go on. I've tried ping (both Windows and Cygwin version) under tcsh and both work fine. And, the small snippet that you cut/paste in your original bug report clearly showed that ping was responding to CTRL-C.
I'm still using this snapshot (I've had no reason to stop until now), and have hit this issue two out of the last five times running Cygwin ping. The ping process is still visible in Process Explorer after hitting ^C. There's no obvious difference between when ^C terminates the process and when it doesn't.
I managed to duplicate this once a couple of days ago in a mintty/tcsh process but I had a very hard time consistently hitting it. So I wrote a test case which ran ping repeatedly in a loop under mintty while another process killed it. Eventually, I could duplicate the problem in a few minutes. There were two problems, one illustrated by the "sigwaitinfo" mentioned in another thread and another caused by a race.
After making some changes to signal handling, I ran the test case for an afternoon without issue.
The current snapshot has these changes.
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