From owner-freebsd-alpha  Wed Aug 30 16:56:47 2000
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To: Peter Wemm <peter@netplex.com.au>
Cc: John Baldwin <jhb@pike.osd.bsdi.com>, alpha@FreeBSD.org,
	yokota@zodiac.mech.utsunomiya-u.ac.jp
Subject: Re: Console problems on alpha with -current 
In-reply-to: Your message of "Wed, 30 Aug 2000 16:17:55 MST."
             <200008302317.e7UNHtG96193@netplex.com.au> 
References: <200008302317.e7UNHtG96193@netplex.com.au> 
Date: Thu, 31 Aug 2000 09:03:29 +0900
From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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>> Mike Smith has suggested that the kenv pointer might not be initialied
>> before the console init on the alpha for some reason...
>
>No, the more I think about it, the more I think something like this is
>happening:
>
>i386:
>console selection is done before any output using the low level console
>probe routines.
>
>alpha:
>the SRM console is being used until much later, and when sc0 comes up without
>vga0 having probed already, then things are breaking.
>The difference between static vs. dynamic hints is that loader(8) is sorting
>the hints (sc0 comes before vga0) while static hints are preserving the order.
>
>In alpha/conf/GENERIC.hints:
>hint.vga.0.at="isa"
>hint.sc.0.at="isa"
>
>I'll bet that reversing these two in a static hints kernel will duplicate
>the problem that people see with dynamic hints.
>
>Can somebody with a vga console alpha confirm/deny this?

Well, does the order in hins affect the order of device probe?
I thought not...

In any case, if the video driver(s) has not been probed when syscons is 
being probed, the video drivers will be initialized through
back-door (yes, this is a kludge). So, the probe order shouldn't be
much of a problem...

Kazu


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