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increased to 256TiB. The kernel address space can also be increased to be the same size, but this will be performed in a later change. To help work with an extra level of page tables two new functions have been added, one to file the lowest level table entry, and one to find the block/page level. Both of these find the entry for a given pmap and virtual address. This has been tested with a combination of buildworld, stress2 tests, and by using sort to consume a large amount of memory by sorting /dev/zero. No new issues are known to be present from this change. Reviewed by: kib Obtained from: ABT Systems Ltd Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D5720 |
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