Sharing page tables with msharefs

Posted Jul 18, 2022 11:54 UTC (Mon) by ddevault (subscriber, #99589)
In reply to: Sharing page tables with msharefs by ddevault
Parent article: Sharing page tables with msharefs

>In the pathological case, the addresses are distributed throughout memory, in which case you might need 512*3 = 1536 page tables = 6 MiB to map all of them (*3 because you only ever need one PML4 per address space).

One other note: this situation calls for 6 MiB of page tables to map 2 MiB worth of actual pages.