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SubjectRe: [BUG 2.6.31-rc1] HIGHMEM64G causes hang in PCI init on 32-bit x86
Linus Torvalds wrote:
>
> On Tue, 30 Jun 2009, Yinghai Lu wrote:
>> how about x = 0, y = 0x100?
>
> Yeah, no. Peter's trick doesn't work. Good catch.
>
> I don't see any single-use trick then, and so it needs the whole statement
> expression mess.
>

Yes, the | trick only works if you know you have a nonzero alignment pad
(or you want a full-block pad in the empty case.)
-hpa



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