Messages in this thread | | | Date | Thu, 15 May 2014 10:05:05 +0300 | From | Oren Twaig <> | Subject | Re: [PATCH] x86, hugetlb: add missing TLB page invalidation for hugetlb_cow() |
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On 05/15/2014 08:00 PM, Anthony Iliopoulos wrote: > I have dismissed this case, since I assume that there are many more > cycles spent in servicing the TLB invalidation IPI, walking the pgtable > plus other related overhead (e.g. sched) than in updating the pte/pmd > so I am not sure how possible it would be to hit this condition.
Hi Anthony,
I have a question about the above statement. What will happen with multi cpu VMs ? won't the race described above can happen ? I.e one virtual CPU can will visit the host and the other will continue to encounter your race ?
Thanks, Oren.
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