Subject: Re: Serial Console/rebooting
To: Todd Cohen <cohentl@clarkson.edu>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-alpha
Date: 12/16/1999 15:19:11
On Thu, 16 Dec 1999 15:12:11 -0500 (EST) 
 Todd Cohen <cohentl@clarkson.edu> wrote:

 > Hey guys,
 > 	I'm running a null modem cable from my PC to my AlphaStation 200.
 > Whenever I reboot my PC, it performs a full reset(like a cold boot), and
 > this causing the NetBSD current kernel to crash (goes to db> ).. I'm
 > assuming the reboot of the PC is changing the voltages on the serial port
 > lines or something which netbsd takes as a break or something.. is there
 > anyway I can tell it to ignore this(either through hardware or software?).
 > Thanks a lot..

First of all, at the db> prompt, you can "c" to continue :-)

You have two options to disable it:

	(1) Take "options DDB" out of your kernel config, rebuild
	    your kernel.

	(2) Use sysctl to set "ddb.fromconsole" to 0.

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>