[openbeos] Re: Boot failure with Quad-core
- From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Mon, 8 Jan 2007 18:37:44 +0100 (MET)
Ingo Weinhold <bonefish@xxxxxxxxxxxxxxx> wrote:
> > Or perhaps the sort code is not handling the 8Gb memory ranges
> > reported
> > by the MMU. Which will exceed 32 bits.
> > (Forgive me if this last sounds like criticism. I have not actually
> > studied the code yet. And am just speculating.)
> I wouldn't think this has anything to do with the size of supported
> or
> installed RAM. If the mainboard chipset (or whatever is responsible)
> presents the installed memory as more than 4 disjoint physical
> address
> ranges, that would be an explanation, though.
Since we actually combine adjacent ranges, it will overflow if you have
more than 4 GB in one range; so in order to support this, we might want
to change the type to uint64 even in 32 bit systems - or just ignore
anything beyond the 4 GB barrier.
Bye,
Axel.
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