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Date:      Mon, 21 Nov 2005 13:07:02 -0500
From:      John Baldwin <jhb@freebsd.org>
To:        freebsd-current@freebsd.org
Cc:        wpaul@freebsd.org, tillman@seekingfire.com, current@freebsd.org, "M. Warner Losh" <imp@bsdimp.com>, craig@xfoil.gank.org
Subject:   Re: Compaq ProLiant 1600 server freezes when detecting keyboard controller
Message-ID:  <200511211307.05043.jhb@freebsd.org>
In-Reply-To: <20051120.210457.109704843.imp@bsdimp.com>
References:  <20051120013530.GA55161@nowhere> <20051120042536.E72D816A421@hub.freebsd.org> <20051120.210457.109704843.imp@bsdimp.com>

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On Sunday 20 November 2005 11:04 pm, M. Warner Losh wrote:
> In message: <20051120042536.E72D816A421@hub.freebsd.org>
>
>             wpaul@freebsd.org (Bill Paul) writes:
> : Our PCI code
> : then comes along and enables all of the devices but doesn't necessarily
> : update the base address registers on some of them, which has the effect
> : of mapping one of the PCI devices at physical address 0.
>
> Actually, that bug has been fixed in recent versions of
> FreeBSD-current, and should be fixed in 6.0.  I recall merging changes
> to 6.0 just before the release.  The problem was that the host bridge
> wasn't properly setting a range.  If that's not the case, then I'd
> like to know about it...

No, the bug was fixed, but that wasn't the fix.  The fix was to bail out 
earlier if a BAR's base was 0 and not enable IO or MEM decoding unless a BAR 
had a valid base (where 0 and 0xfffffff are both invalid bases).

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org



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