"Console Windows Host" stopped working stopped working

Corinna Vinschen corinna-cygwin@cygwin.com
Wed Jun 22 08:27:00 GMT 2011

On Jun 22 00:03, Thorsten Kampe wrote:
> Hello,
> starting with the snapshot from June, 14th, I cannot run screen inside a 
> Windows Console (also Take Command) terminal anymore. It terminates with 
> the message mentioned in the subject while screen and the shell continue 
> running and consume excessive CPU.

I can not exactly reproduce this, but I see what you mean.  In my case
the shell tries to re-fork a child process indefinitely.  Only when
killing the shell I get the conhost(*) crash.

> running and consume excessive CPU. Mintty, rxvt, Console 
> (console.sourceforge.net) and others work fine.

screen also works fine from mintty.  I guess this is the result of
removing the CYGWIN=tty setting.  Screen needs ptys to work and the pty
support for the Windows console is gone.  Of course that's no reason for
conhost to crash, but we had problems with this beast since W7 was in


(*) A Windows 7/2008 R2 invention.

Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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