Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [patches] [PATCH] [1/58] x86: Always flush pages in change_page_attr | Date | Mon, 6 Aug 2007 12:36:59 +0200 |
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On Monday 06 August 2007 12:15:01 Jan Beulich wrote: > But that is still wrong - you're again flushing the page table page rather than > the data one. Fixing this was the purpose of the patch I had sent, plus the > broken reference counting used by the reversion logic. Jan
True. The problem is that we can't necessarily use the LRU list_head of the data pages though; e.g. when the page is mapped to user space.
I guess we might need to go back to wbinvd again.
What was the remaining problem of the reference counting?
-Andi
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