On Sun, Dec 27, 2015 at 07:04:10PM +0000, Stuart Henderson wrote:
On 2015-12-27, Ted Unangst <t...@tedunangst.com> wrote:
LÉVAI Dániel wrote:
So I guess it didn't panic, but just dropped to ddb from console,
because ddb.console was set to 1. Is there something sent via the serial
console that induces this? If I set ddb.console to 0 this doesn't
happen, but I'm curious as to what is happening and if I can avoid it.

a "break" was sent. or at least received. i've seen extra breaks sent when
trying to disconnect too. i mostly solved it by not disconnecting...

"break" is just a signal low for longer than the time taken to send a
normal character (plus framing), it's not that hard to have one detected
when it's not intended. First I'd try setting things up to use a
different port speed, especially if it's currently at a high speed
then try slowing it down. If that doesn't help then I'd try a
different usb/rs232 adapter.

Possibly a shorter or better quality cable may help as well, especially
if it's a long cable run.

--
Tati Chevron
Perl and FORTRAN specialist.
SWABSIT development and migration department.
http://www.swabsit.com

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