Compaq ProLiant 1600 server freezes when detecting keyboard controller

[John Baldwin]

On Sunday 20 November 2005 11:04 pm, M. Warner Losh wrote:
> In message: <20051120042536.E72D816A421 at hub.freebsd.org>
>
>             wpaul at 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 at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org