Messages in this thread | | | Date | Wed, 21 Jan 2009 12:25:30 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] x86: fix page attribute corruption with cpa() |
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* Suresh Siddha <suresh.b.siddha@intel.com> wrote:
> This patch fixes a performance issue reported by Linus on his Nehalem > system. While Linus reverted the PAT patch (commit > 58dab916dfb57328d50deb0aa9b3fc92efa248ff) which exposed the issue, > existing cpa() code can potentially still cause wrong(page attribute > corruption) behavior. > > This patch also fixes the "WARNING: at arch/x86/mm/pageattr.c:560" that > various people reported.
nice fix - applied to tip/x86/urgent, thanks Suresh!
Ingo
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