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Date:      Wed, 9 Dec 2009 10:02:55 -0500
From:      John Baldwin <jhb@freebsd.org>
To:        Andrew Pantyukhin <infofarmer@freebsd.org>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: libi386/biosacpi.c - bad RSDP checksum search
Message-ID:  <200912091002.55490.jhb@freebsd.org>
In-Reply-To: <20091209103248.GP98273@pollux.cenkes.org>
References:  <20091208060339.GK98273@pollux.cenkes.org> <20091208134913.GL98273@pollux.cenkes.org> <20091209103248.GP98273@pollux.cenkes.org>

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On Wednesday 09 December 2009 5:32:49 am Andrew Pantyukhin wrote:
> On Tue, Dec 08, 2009 at 04:49:13PM +0300, Andrew Pantyukhin wrote:
> > Oops. I obviously made a wrong assumption. I'll try to confirm.
> 
> Yep, the good RSDP is found later.
> 
> So I think either a "bad checksum" should be followed by a "good
> checksum" or it should only be printed if no good RSDP has been
> found. Attached are a couple of alternative tiny patches.
> 
> Otherwise, a FAQ entry should be added to keep the mere mortals
> like me from wondering about the error message. FWIW, it comes up
> on many (most?) IBM System x machines.

We can probably just drop the message altogether I think.  The ACPI stuff the 
loader does is just advisory.  The kernel will give more detailed notes about 
a bad checksum if needed.

-- 
John Baldwin



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