[Bug 1646813] Re: ssh (client) stucks in an endless loop with 100% CPU

This bug was fixed in the package openssh - 1:7.4p1-5 --- openssh (1:7.4p1-5) unstable; urgency=medium * Create mux socket for regression tests in a temporary directory. * Work around clock_gettime kernel bug on Linux x32 (closes: #849923). -- Colin Watson

[Bug 1646813] Re: ssh (client) stucks in an endless loop with 100% CPU

Yes, exactly. ssh was asked for password auth and wasn't able to ask password from local keyboard. But this shouldn't cause it to hung forever with 100% CPU. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu.

[Bug 1646813] Re: ssh (client) stucks in an endless loop with 100% CPU

SIGTTOU happens when a background process tries to send output to the terminal. If you're getting this then it generally indicates a configuration error. Try using the -n option, and of course making sure that you have suitable public-key authentication arrangements so that ssh doesn't need to

[Bug 1646813] Re: ssh (client) stucks in an endless loop with 100% CPU

I was able to debug issue. It happens when 'timeout 120 ssh' is run without --foreground option for timeout and remote server is asking for password. timeout without --foreground, when run from the script will block all input from stdin, which cause ssh to hangs in the loop. -- You received this