Messages in this thread | | | Subject | Re: [PATCH RFC] mm/madvise: introduce MADV_POPULATE to prefault/prealloc memory | From | David Hildenbrand <> | Date | Sat, 20 Feb 2021 10:01:00 +0100 |
| |
> Sorry, for jumping in late ... hugetlb keyword just hit my mail filters :) >
Sorry for not realizing to cc you before I sent out the man page update :)
> Yes, it is true that hugetlb reservations are not numa aware. So, even if > pages are reserved at mmap time one could still SIGBUS if a fault is > restricted to a node with insufficient pages. > > I looked into this some years ago, and there really is not a good way to > make hugetlb reservations numa aware. preallocation, or on demand > populating as proposed here is a way around the issue.
Thanks for confirming, this makes a lot of sense to me now.
-- Thanks,
David / dhildenb
| |