Re: Maximum swap space?

From: William Lee Irwin III (
Date: Tue Jun 10 2003 - 14:29:21 EST

On Tue, Jun 10, 2003 at 12:00:39PM -0700, Randy.Dunlap wrote:
> So do we know what the 2.4.current and 2.5.current limits are?
> You have used a 20 GB swap partition on 2.4.recent.
> Andrew has used (tested) a 52 GB partition on some unmentioned
> kernel.

I apologize for failing to do a proper wrap-up. AIUI, we have:

(1) both 2.4.x and 2.5.x kernels support swapspaces of up to 64GB in size

(2) 2.4.x supports 64 swapspaces and 2.5.x supports 32 (not reparable)

(3) mkswap(8) needs fixes for creating swapspaces larger than 2GB merged
        back to util-linux; aeb (util-linux maintainer) has publicly
        requested the code be sent back to him for merging, presumably
        with some evidence of its correctness. One of the several distro
        people who are maintaining such patches against mkswap(8) is
        going to send that in.

-- wli
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