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152 bytes removed, 04:39, 24 October 2019
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* Currently only MAP_PRIVATE | MAP_ANONYMOUS is supported. Newer kernels (4.11+) allow userfaultfd for hugetlbfs and shared memory, yet to be implemented in CRIU.
* Userfault is known not to map one page into two places. Thus -- COW-ed pages will get COW-ed.
* The [[Lazy migration]] use-case might be racy because there is no means to synchronize between pending forks, remote pages transfers and page faults.
== See also ==

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