[Bug 200445] login into system on serial line /dev/cuaU0 hangs on open of /dev/tty

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200445

Konstantin Belousov <kib at FreeBSD.org> changed:

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                 CC|                            |kib at FreeBSD.org

--- Comment #5 from Konstantin Belousov <kib at FreeBSD.org> ---
(In reply to Matthias Apitz from comment #4)
What is the wait channel for the hung open ?

Did you specified the line to use hw flow control ?  Does your cable has
necessary wires, does your usb/com adapter supports hw flow control ?

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