On Fri, Aug 17, 2012 at 09:07:30AM +0000, Adam Dinwoodie wrote: >Christopher Faylor wrote: >> On Tue, Aug 14, 2012 at 12:48:03PM +0000, Adam Dinwoodie wrote: >>> 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. > >I'm seeing this much more regularly than that; it's pretty readily >reproducible for me.
Yes, I got the fact that other people were able to duplicate the problem easily. >I've found leaving a couple of seconds between starting ping and trying >to kill it, and leaving a couple of seconds between invocations, both >help. I've not tested that thoroughly, though; it might be something >to play with for trying to build a test case, but certainly not >something I'd rely on as a symptom for debugging without further >verification. > >> After making some changes to signal handling, I ran the test case for an >> afternoon without issue. >> >> The current snapshot has these changes. >> >> I'd appreciate feedback on whether or not this fixes this problem. > >I'm still seeing exactly the same issue having taken the 20120816 snapshot. If >anything, I've been hitting the problem more. I should have asked this before: I don't think anyone has made it clear if they are running the cygwin ping or the Windows one. I've been assuming Cygwin. Is that correct? cgf -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
