On Thu, 12 Mar 2020 19:01:41 -0700 Wayne Davison wrote: > In recent Cygwin versions I've had gnu screen crash if the parent ssh > connection closes before an explicit disconnect is performed. If an > orderly screen disconnect happens first, future closed connections > (after reconnecting to the screen session) no longer crash screen. > > To reproduce: > > I ssh into my Windows 10 host, move my .screenrc file out of the way > (to keep the config the default) and run "screen" to start up a basic > screen session. I then use the ssh close-connection key sequence > (Enter, tilde, period) to close the connection. When I log back in, > the ps command shows that screen is already dead and "screen -ls" > shows a dead screen to clean up using "screen -wipe". If I start a > fresh screen and use screen's Ctrl+A d key sequence to detach, I can > use "screen -r" to reconnect and from this point on a lost connection > no longer makes screen crash, even on future reconnects. > > I haven't seen this crash on Ubuntu, but since it isn't on the same > version, I tried compiling 4.8.0 to see if that might make it crash -- > it did not. I then compiled the source on Cygwin (without any > configure options) and that version has the bug, so I guess that this > is either a Cygwin issue or something weird in my Windows setup. > > Is anyone else seeing this crash? > > I'm attaching a cygcheck.out file that has a couple secrets elided. > I'll note that I just started to run with disable_pcon set, but it's > been crashing with and without that.
Thanks for the report. This seems to be a problem related to pseudo console. I will submit a patch for this issue shortly. -- Takashi Yano <takashi.y...@nifty.ne.jp> -- 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
