Re: [stable] [tip:x86/urgent] x86: Add memory modify constraints to xchg() and cmpxchg()

["H. Peter Anvin" <hpa@xxxxxxxxx>]

> 
> The system boots and works just fine with 2.6.32.21 with the patch reverted.
> v2.6.36-rc3-185-gd56557a works fine as well, perhaps there were other fixes
> that didn't get to stable (e.g. 4532b30).
> 

I believe this needs 69309a05907546fb686b251d4ab041c26afe1e1d, which I
think is being queued up for stable.

Could you try applying 69309a05907546fb686b251d4ab041c26afe1e1d and see
if it solves your problem.

	-hpa
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