Re: race with page_referenced_one->ptep_test_and_clear_young and pagetable setup/pulldown

[Andi Kleen]

> Fortuitously, Jan Beulich has a patch to fix this. It's not going to be
> directly applicable to 2.6.23-rc series, but should be easily ported:
> <http://lists.xensource.com/archives/html/xen-devel/2007-03/msg01200.html>.

Do I misread that patch or does it really walk the complete address
space and try to take all possible locks? Isn't that very slow?

-Andi
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