RELENG_6: serial console drops back from 115200 to 9600 baud

[Dimitry Andric]

Hi,

I believe this MFC commit:
http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/boot/i386/libi386/comconsole.c?rev=1.10.10.1&content-type=text/x-cvsweb-markup
broke the speed-setting of the serial console at boot time, for RELENG_6.

At least for me, it doesn't set the speed to 115200 (as specified in
make.conf) anymore, it always stays at 9600, even when I put
comconsole_speed=115200 in loader.conf.

I noticed this, when I upgraded from 6.0-STABLE built around december
last year, to 6.1-PRERELEASE from last week.  The serial console on this
particular machine had been working flawlessly for years now...

There's a new comment added by the commit in this file that says:

	/*
  	 * Assume that the speed was set by an earlier boot loader if
  	 * comconsole is already the preferred console.
  	 */

whereas in the previous version it was set (hardcoded) to COMSPEED,
which in its turn came from BOOT_COMCONSOLE_SPEED in
boot/i386/libi386/Makefile.

Anyone know of a way to restore the old behaviour?  I'll experiment here
with reverting the comconsole.c file to the previous version, to see if
that helps, but a permanent solution would be better. :)

Cheers,
Dimitry


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