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Date: Mon, 4 Mar 2013 11:59:42 -0800
From: Doug Ambrisko <ambrisko@ambrisko.com>
To: "Eggert, Lars" <lars@netapp.com>
Subject: Re: serial console not accepting input?
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Cc: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>,
 Dimitry Andric <dim@freebsd.org>
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On Thu, Jan 24, 2013 at 01:23:50PM +0000, Eggert, Lars wrote:
| Hi,
| 
| On Jan 23, 2013, at 17:04, Dimitry Andric <dim@freebsd.org> wrote:
| > CTS/RTS hardware flow control, maybe?  E.g. add ":hw" to the default
| > settings in /etc/gettytab, or make a specific entry with an added ":hw"
| > setting.
| 
| nope, I don't even get a login prompt if I do that.
| 
| > If it is a physical serial console, you could also simply have a bad
| > cable.  Try swapping it with working system. :)
| 
| Spent the last few hours fiddling with the cabling and the various BIOS 
| serial redirection options (it's a Dell 2950). My best guess is that 
| the serial port on the box is physically broken.

Try to do a {Ctrl}D to see if works.  We've seen that the TX on reset
hangs but input works fine.  I'm not sure if we ran into this with
uart(4) but had a problem with sio(4).

Doug A.