On Sun, 2012-01-01 at 20:25 +0100, Bernhard wrote:
> >
> > Are you sure you made the partition big enough? btrfs at least used to
> > not handle running out of disk space at all, and we can see it's trying
> > to allocate a disk block, and this error occurs part of the way through
> > debootstrap, when at least a few hundred megabytes will have been written
> > to the disk.
> >
> > Alternatively, the 3.1.0-1 kernel could have a broken btrfs, if so reassign
> > this bug to there.
> >
>
> Hello Joey
>
> Yes, i'm sure the partition is big enough.
> The size of the root partition is about 10GB.
[...]

There were a large number of bug fixes to btrfs in Linux 3.2, including
several relating to the sort of bug (failure to reserve space) that will
trigger this warning.

So I would suggest re-testing with the current daily installer.

Ben.

--
Ben Hutchings
Reality is just a crutch for people who can't handle science fiction.