> Well, at least in 2.3, kernel data (and page caches) are below 1G,
> which means there's a lot of memory possible out there with
> references only from user memory. Shm page references are
> revokable too. [...]
we already kindof replace pages, see replace_with_highmem(). Reverse ptes
do help, but are not a necessity to get this. Neither reverse ptes, nor
any other method guarantees that a large amount of continuous RAM can be
allocated. Only boot-time allocation can be guaranteed.
-- mingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/