Hello Guix,

I've had this issue before but couldn't understand what was happening at
the time. At that time, I simply resized my filesystem then ran the
garbage collector.

$ touch /tmp/test.txt
touch: cannot touch '/tmp/test.txt': No space left on device

$ df -h
Filesystem      Size  Used Avail Use% Mounted on
none            1.9G     0  1.9G   0% /dev
/dev/sda1        37G   25G   11G  71% /
tmpfs           1.9G     0  1.9G   0% /dev/shm
cgroup          1.9G     0  1.9G   0% /sys/fs/cgroup
none            1.9G   12K  1.9G   1% /run/systemd
none            1.9G     0  1.9G   0% /run/user
tmpfs           376M     0  376M   0% /run/user/1000

In the #guix channel, jmd suggested that this might be an inode issue: