Re: Linux 2.6.27-rc5: System boot regression caused by commita2bd7274b47124d2fc4dfdb8c0591f545ba749dd

[Linus Torvalds]

On Fri, 29 Aug 2008, Yinghai Lu wrote:
> 
> we need to use insert_resource_split_to_fit instead...
> 
> otherwise __request_region will not be happy.

Are you really really sure?

Try just removing the IORESOURCE_BUSY. As mentioned, if we expect the PCI 
BAR's to work with the e820 resources, then BUSY really is simply not 
right any more. Not that I think it should matter either..

The ones that are added _early_ should be IORESOURCE_BUSY (ie the ones 
that cover RAM), but the others we now expect to nest with PCI BARs.

But since we add them after we have parsed the BAR's, I don't even see why 
the BUSY bit should even matter - we've already added the fixed BARs, and 
any newly allocated non-fixed ones shouldn't be allocated in e820 areas 
_regardless_ of whether the BUSY bit is set or not.

So pls explain why it matters?

		Linus
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