On Tue, Nov 24, 2009 at 10:25:12AM +0100, Corinna Vinschen wrote: >On Nov 23 13:20, Christopher Faylor wrote: >> On Mon, Nov 23, 2009 at 10:07:05PM +0800, Huang Bambo wrote: >> >There's some diffirence between cygwin and other *nix: >> >In other *nix with this condition, those ended child process could be >> >list by ps command with <defunc>tag, will you fix it? >> >> Cygwin should produce zombie processes. You don't see zombie processes >> if the child has exited and the parent goes away though. In that case >> the process just disappears, just like on linux. >> >> You *should* see a zombie when the parent is alive by not waiting for >> children. > >Hmm, but you don't. Huang's example code forks a child and the parent >returns to the select loop without reaping the child via wait. When the >child exits after its 3 second sleep, the handle to the child process >does not get closed, and the cygpid shared memory regions for the child >pid still exists. But the process list does not show the child process >at all. Nor will you find it in /proc. > >That's not a regression, though. The same occurs in 1.5.25. However, >I have a vagure memory that we really saw zombies in the process list >way back when.
Ok, I suspected as much. I just wanted to squash the notion that this wasn't possible in Windows. It may be broken now but it is possible. 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
