https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=9bedd6807dc3a1ad6c80e62a6a7aae27ca769de0
commit 9bedd6807dc3a1ad6c80e62a6a7aae27ca769de0 Author: Takashi Yano <takashi.y...@nifty.ne.jp> Date: Wed Oct 16 21:34:08 2019 +0900 Cygwin: pty: Avoid detach console in the process running as service. Diff: --- winsup/cygwin/fhandler_tty.cc | 2 ++ 1 file changed, 2 insertions(+) diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc index 1095c82..dbb035f 100644 --- a/winsup/cygwin/fhandler_tty.cc +++ b/winsup/cygwin/fhandler_tty.cc @@ -1048,6 +1048,8 @@ fhandler_pty_slave::try_reattach_pcon (void) /* Do not detach from the console because re-attaching will fail if helper process is running as service account. */ + if (get_ttyp()->attach_pcon_in_fork) + return false; if (pcon_attached_to >= 0 && cygwin_shared->tty[pcon_attached_to]->attach_pcon_in_fork) return false;