Re: How much kernel memory is in 64-bit OS ?

[Andi Kleen]

Rik van Riel <riel@xxxxxxxxxx> writes:
> 
> However, all 64 bit architectures have one thing in common.
> There is so much address space available for both kernel and
> userspace that we won't have to worry about a shortage for a
> very long time.

Nearly.

The x86-64 port started off with a 512GB user space VM limit, and then
that later was extended with 4 level page tables because it wasn't
quite enough for everybody.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/