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From: John Baldwin <jhb@freebsd.org>
To: Przemyslaw Frasunek <przemyslaw@frasunek.com>
Date: Mon, 18 Apr 2011 09:24:12 -0400
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	(bigwig.baldwin.cx); Mon, 18 Apr 2011 12:56:29 -0400 (EDT)
Cc: freebsd-stable@freebsd.org
Subject: Re: Missing serial port after enabling serial console in loader.conf
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On Saturday, April 16, 2011 7:13:16 pm Przemyslaw Frasunek wrote:
> > Hmm, I don't see it even trying to probe the COM1 device.  I'll have to wait
> > until you get a verbose dmesg to investigate further I'm afraid. :(
> 
> I've got verbose dmesg now: http://www.frasunek.com/tmp/dmesg-verb.txt

Hummm.  Can you do a few things:

1) Add a printf to sioprobe() in sys/dev/sio/sio.c to output an error message
when it fails to allocate a SYS_RES_IOPORT device at the very beginning.

2) Capture 'acpidump -d' output and post it somewhere?

-- 
John Baldwin