On Thu, 2015-07-30 at 10:39 +0200, Uwe Kleine-König wrote: > This doesn't terminate the ssh-command to keep the control socket > open. Then pressing Ctrl-Z and run bg to send the ssh into the > background. I think that's basically as it should be. The manpage's documentation is unfortunately a bit unclear here, I once sent some patches upstream that should clear things up much more better: https://lists.mindrot.org/pipermail/openssh-unix-dev/2015 -February/033471.html But I guess that was never merged for whatever reasons... > - Now repeat the ssh command in the first terminal: > > ssh -o "ControlMaster auto" -o "ControlPath ~/.ssh/sshctrl > -%l-%h-%p-%r" localhost > > Both sessions don't react any more. The only way I found to resolve > up > to now is to kill all related ssh sessions with kill(1). That's kinda interesting though, I can reproduce that. Even ~. or so doesn't work anymore, and it really seems to require SIGKILL. Interestingly it doesn't happen when ControlPersist is e.g. set to 1s. Sounds like an upstream issue, could you perhaps forward this? Cheers, Chris.
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