bug#53194: System test partition.img differs in size across hosts(?)

[Leo Famulari]

On Tue, Jan 11, 2022 at 08:31:27PM +0100, Tobias Geerinckx-Rice via Bug reports 
for GNU Guix wrote:
> This is weird.  On berlin:

Berlin is using ext4, right?

> On my laptop:
> --8<---------------cut here---------------start------------->8---
[...]
> mke2fs: Could not allocate inode in ext2 filesystem while populating file
> system
> --8<---------------cut here---------------end--------------->8---
> 
> This happens with both a tmpfs and a bcachefs /tmp.

And it fails for me on btrfs, but not on ext4.

I tested with Guix kernels 5.16.5, 5.15.17, and 5.15.15, as well as
Debian's 5.10.0-11-amd64.