systemd: slice: Failed to migrate controller cgroups

[Laurent Bonnaud]

Hi,

during boot those error messages appear in the logs:

# journalctl | grep controller
[...]
Apr 02 20:16:23 vougeot systemd[3155]: -.slice: Failed to migrate controller cgroups from /user.slice/user-108.slice/[e-mail], ignoring: Permission denied
Apr 02 20:16:31 vougeot systemd[3512]: -.slice: Failed to migrate controller cgroups from /user.slice/user-1000.slice/[e-mail], ignoring: Permission denied

ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: systemd 247.3-3ubuntu2
Uname: Linux 5.11.11-051111-lowlatency x86_64
ApportVersion: 2.20.11-0ubuntu61
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Sun Apr 4 13:29:25 2021
MachineType: TUXEDO TUXEDO InfinityBook S 15 Gen6
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.11-051111-lowlatency root=/dev/mapper/MonVolume2-UbuntuRacine ro vsyscall=none security=apparmor quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/07/2020
dmi.bios.release: 7.3
dmi.bios.vendor: INSYDE Corp.
dmi.bios.version: 1.07.03RTR
dmi.board.name: NS50MU
dmi.board.vendor: TUXEDO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Notebook
dmi.chassis.version: N/A
dmi.ec.firmware.release: 7.2
dmi.modalias: dmi:bvnINSYDECorp.:bvr1.07.03RTR:bd09/07/2020:br7.3:efr7.2:svnTUXEDO:pnTUXEDOInfinityBookS15Gen6:pvrNotApplicable:rvnTUXEDO:rnNS50MU:rvrNotApplicable:cvnNotebook:ct10:cvrN/A:
dmi.product.family: Not Applicable
dmi.product.name: TUXEDO InfinityBook S 15 Gen6
dmi.product.sku: Not Applicable
dmi.product.version: Not Applicable
dmi.sys.vendor: TUXEDO
modified.conffile..etc.systemd.resolved.conf: [modified]
mtime.conffile..etc.systemd.resolved.conf: 2021-04-02T13:37:46.839143

[Laurent Bonnaud (laurent-bonnaud)]

This bugs also exists in Arch Linux:

  https://bugs.archlinux.org/task/68832

(launchpad did not accept the URL) and Debian. It has been fixed in Debian.

[Balint Reczey (rbalint)]

The switch of the default did not happen yet in Ubuntu because snapd is not ready: LP: #1850667.

The plan is switching to cgroupv2 as default in the 21.10 development cycle.