Ubuntu 20.04: linux-image: Versions >5.4.0-42: Nasty problem with ext4 inode quota

[Kraus, Sebastian]

Dear Ubuntu kernel team,

I am operating an setup with three HPC nodes using Ubuntu 20.04 (focal) OS. Unfortunately, beginning with kernel image packages higher than version 5.4.0-42, I experience the nasty bug, that ext4 file systems with inode quota cannot be mounted anymore. E2fsck does not tell me about any corruptions regarding the ext4 file system with inode quota. However, the ext4 code within kernel bails out as follows: 
EXT4-fs warning (device dm-2): ext4_enable_quotas:6471: Failed to enable quota tracking (type=0, err=-3). Please run e2fsck to fix
Have some file system features been deleted from within the ext4 module of newer kernel versions? Help greatly appreciated.


Thanks and Best
Sebastian Kraus

_______________________

Dipl.-Chem.
Sebastian Kraus

IT-Abteilung
Institut für Chemie
Straße des 17. Juni 115

Technische Universität Berlin
Fakultät II
Institut für Chemie
Sekretariat C3
Straße des 17. Juni 135
10623 Berlin

Email: sebastian.kraus at tu-berlin.de