Bug#991400: systemd: Failed to migrate controller cgroups from /user.slice/user-1000.slice/user at 1000.service

[Thomas Uhle]

Package: systemd
Version: 247.3-6
Severity: important

Dear maintainers,

after upgrading from buster to bullseye, I have the following new error 
message in syslog every time after login:

systemd[1375]: -.slice: Failed to migrate controller cgroups from /user.slice/user-1000.slice/user at 1000.service, ignoring: Permission denied

Down below I have added a more comprehensive excerpt from syslog for you 
to see when this error message occurs (timestamps and host name stripped). 
>From what I understand, this issue has already been brought up upstream by 
Michael Biebl (see https://github.com/systemd/systemd/issues/18047), but 
the patch at https://github.com/systemd/systemd/pull/18553 went into 
systemd version 248 which was obviously too late for bullseye. Since I 
still get the same error message, I guess that this patch yet has not been 
cherrypicked for the current binary release 247.3-6 in Debian and I would 
like to ask you if you could do so because I would like to stay with a 
stable Debian release after the release of bullseye.

Thank you in advance!

Thomas Uhle


-- Package-specific info:
<#part type="text/plain" disposition=attachment description="Bug script output">
systemd[1]: Created slice User Slice of UID 1000.
systemd-logind[648]: New session c1 of user thomas.
systemd[1]: Starting User Runtime Directory /run/user/1000...
systemd[1]: Finished User Runtime Directory /run/user/1000.
systemd[1]: Starting User Manager for UID 1000...
systemd[1375]: pam_unix(systemd-user:session): session opened for user thomas(uid=1000) by (uid=0)
systemd[1375]: Queued start job for default target Main User Target.
systemd[1375]: -.slice: Failed to migrate controller cgroups from /user.slice/user-1000.slice/user at 1000.service, ignoring: Permission denied
systemd[1375]: Created slice User Application Slice.
[...]
systemd[1]: Started User Manager for UID 1000.
systemd[1]: Started Session c1 of user thomas.
<#/part>

-- System Information:
Debian Release: 11.0
   APT prefers stable-updates
   APT policy: (500, 'stable-updates'), (500, 'testing'), (500, 'stable')
Architecture: arm64 (aarch64)
Foreign Architectures: armhf

Kernel: Linux 3.16.85-odroidc2 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd depends on:
ii  adduser                          3.118
ii  libacl1                          2.2.53-10
ii  libapparmor1                     2.13.6-10
ii  libaudit1                        1:3.0-2
ii  libblkid1                        2.36.1-7
ii  libc6                            2.31-12
ii  libcap2                          1:2.44-1
ii  libcrypt1                        1:4.4.18-4
ii  libcryptsetup12                  2:2.3.5-1
ii  libgcrypt20                      1.8.7-6
ii  libgnutls30                      3.7.1-5
ii  libgpg-error0                    1.38-2
ii  libip4tc2                        1.8.7-1
ii  libkmod2                         28-1
ii  liblz4-1                         1.9.3-2
ii  liblzma5                         5.2.5-2
ii  libmount1                        2.36.1-7
ii  libpam0g                         1.4.0-9
ii  libseccomp2                      2.5.1-1
ii  libselinux1                      3.1-3
ii  libsystemd0                      247.3-6
ii  libzstd1                         1.4.8+dfsg-2.1
ii  mount                            2.36.1-7
ii  systemd-timesyncd [time-daemon]  247.3-6
ii  util-linux                       2.36.1-7

Versions of packages systemd recommends:
ii  dbus  1.12.20-2

Versions of packages systemd suggests:
ii  policykit-1        0.105-31
pn  systemd-container  <none>

Versions of packages systemd is related to:
pn  dracut           <none>
ii  initramfs-tools  0.140
ii  libnss-systemd   247.3-6
ii  libpam-systemd   247.3-6
ii  udev             247.3-6