Indeed, it seems that I have tweeked my debian box for nvidia-docker at the time. In /etc/default/grub:
# Add this line for nvidia-docker GRUB_CMDLINE_LINUX="systemd.unified_cgroup_hierarchy=0" Christophe TROPHIME Research Engineer CNRS - LNCMI 25, rue des Martyrs BP 166 38042 GRENOBLE Cedex 9 FRANCE Tel : +33 (0)4 76 88 90 02 Fax : +33 (0) 4 76 88 10 01 Office U 19 M@il : christophe.troph...@lncmi.cnrs.fr ----- Original Message ----- > From: "Luca Boccassi" <bl...@debian.org> > To: "Christophe Trophime" <christophe.troph...@lncmi.cnrs.fr> > Cc: 1072...@bugs.debian.org > Sent: Monday, June 3, 2024 7:33:45 PM > Subject: Re: systemd: On a debian trixie, after upgrading systemd to latest > version the system fails to reboot. > On Mon, 3 Jun 2024 at 18:29, Christophe Trophime > <christophe.troph...@lncmi.cnrs.fr> wrote: >> >> Hi, >> could you please just tell what info do you need? > > As already mentioned: did you customize the kernel command line? > Cgroupsv2 has been the default for years > >> ----- Original Message ----- >> > From: "Luca Boccassi" <bl...@debian.org> >> > To: 1072...@bugs.debian.org >> > Cc: "Christophe Trophime" <christophe.troph...@lncmi.cnrs.fr> >> > Sent: Monday, June 3, 2024 6:53:19 PM >> > Subject: Re: systemd: On a debian trixie, after upgrading systemd to latest >> > version the system fails to reboot. >> >> > Control: tags -1 moreinfo >> > >> > On Mon, 03 Jun 2024 18:41:12 +0200 Christophe Trophime >> > <christophe.troph...@lncmi.cnrs.fr> wrote: >> >> Package: systemd >> >> Version: 256~rc3 >> >> Severity: important >> >> X-Debbugs-Cc: christophe.troph...@lncmi.cnrs.fr >> >> >> >> Dear Maintainer, >> >> >> >> After upgrading systemd the machine does not reboot. >> >> The error message says: >> >> >> >> systemd freezing execution >> >> refusing to run under cgroup v1, SYSTEMD_CGROUP_ENABLE_LEGACY_FORCE=1 >> >> shall be passed to kernel command line >> >> >> >> >> >> As far as I have understood cgroup v1 is no longer supported. >> >> So I think I have 2 choices: >> >> * add the variable to the kernel starting command line, >> >> * disable cgroup v1 >> >> >> >> The point is that I cannot figure out how to do? >> >> Cannot find how to set the variable, nor how to eventually disable >> >> cgroup v1? >> >> >> >> Which packages may use the cgroup v1 features? >> >> I'm using container tools like docker (nvidia-container), singularity >> > and charliecloud >> >> >> >> Thanks for your help >> >> Best >> >> C >> >> >> >> PS: cannot provide any additional info about my debian trixie host. >> > >> > cgroupsv2 is the default and has been since Bookworm, did you apply >> > some custom kernel command line that disables it? >> > >> > -- >> > Kind regards, > > > Luca Boccassi
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