snapper fails to create a btrfs snapshot if --cleanup-algorithm is used

[eselarm]

When I reboot with kernel 6.8.4 (edge) installed by apt upgrade, I noticed my scripts that uses snapper for remove differential backups. It turns out that, if no cleanup algorithm option is used, snapshot is created.

Before the reboot, with kernel 6.8.1 version, there was no issue. I on Armbian Bookworm, but also with other Debian Bookworm based OS running those same kernel binaries. Same failure with 6.8.5

 

Currently I don't know any more, I could run this faulty kernel in a VM as the .config is such that it also boots on virt hardware (virt-7.2 as Bookworm uses).

 

EDIT:

Also in a VM, the problem is there:

 

root@armbian64:/tmp# snapper create -d cleantest --cleanup-algorithm number
Creating snapshot failed.
root@armbian64:/tmp# snapper create -d cleantest  
root@armbian64:/tmp# uname -a
Linux armbian64 6.8.4-edge-rockchip-rk3588 #1 SMP PREEMPT Thu Apr  4 18:25:06 UTC 2024 aarch64 GNU/Linux

 

Edited April 12 by eselarm

[eselarm]

I do not use quotas, so the fix for this issue is: https://github.com/openSUSE/snapper/issues/894#issuecomment-2054220427