Re: Support for > 2GB swap partitions?

[Justin Piszcz]

This was the problem, thanks!

On Mon, 10 Jan 2005, Andries Brouwer wrote:

> On Sun, Jan 09, 2005 at 07:34:38PM -0500, Justin Piszcz wrote:
>
> > I remember reading in the past that > 2GB swap partitions were supported
> > in Linux as of recent util-linux packages with a 2.6 kernel or am I wrong?
> >
> > # fdisk -l
> > /dev/sda2              17         526     4096575   82  Linux swap
> >
> > # top
> > Mem:   2075192k total,  2062540k used,    12652k free,       64k buffers
> >
> > Only recognizes 2GB of 4GB?
>
> A swap partition has a swap header that specifies its size
> (and possibly what bad blocks exist on the swap partition).
> Thus, if you did mkswap long ago, the useful size will not
> have changed. Do swapoff; mkswap; swapon and mkswap will
> tell you how large a swap partition it made, and swapon
> will cause the kernel to say how much swap space was added.
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