11.04 B1 Btrfs

[Chris Jones]

> With a clean install of 11.04 B1, I partitioned slice0 for / with
> Btrfs and slice1 for /home with ext4. Did a touch, dd, mkswap to
> produce a swapfile successfully but swapon failed (Swapon failed -
> invalid argument). Switched to a swapfile on /home and it succeeded.
> Any reason why swapfile/swapon on Btrfs have this problem? Previously,
> there was no problem when / was on ext4.

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