On Apr 29, 2014, at 10:44 PM, Nathan Whitehorn <nwhiteh...@freebsd.org> wrote:
> On 03/09/14 14:06, Marcel Moolenaar wrote: >> Author: marcel >> Date: Sun Mar 9 21:06:22 2014 >> New Revision: 262957 >> URL: http://svnweb.freebsd.org/changeset/base/262957 >> >> Log: >> Change the terminal type/class for enabled serial lines to 3wire. This >> allows us to change the uart(4) driver to not hardcode specific line >> settings for the serial console. >> A terminal type of 3wire makes sure the console still works when no DCD >> signal is present, which preserves behviour. When it is known that the >> terminal server (or DCE in general) provides DCD, a terminal type/class >> of std can be used. This has the effect of being logged out when one >> disconnects from the console -- improving security overall. >> Likewise, when uart(4) does not fixate the baudrate, one can change >> the terminal type/class to set a specific baudrate. An operator can use >> this to change the console speed mid-flight, without needing a reboot. >> Of course it helps in this respect if and when the firmware can be >> configured from the OS. >> The above mentioned capabilities depend on uart(4) being changed, which >> is to happen next. >> > > Should we set onifconsole for x86 UARTs as well? That enables them if they > are the kernel console and is probably a user friendliness improvement. Sorry for the delay... I think that's a very good idea. I wasn't even aware of this flag. We could mark all ttyu# lines as onifconsole by default across all architectures and if that unifies the contents of the /etc/ttys file, revert back to a single one... -- Marcel Moolenaar mar...@xcllnt.net
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