After enabling the unified cgroups hierarchy in systemd and running some tests, I can confirm that most things are working as expected, except for snapd.
https://bileto.ubuntu.com/excuses/4602/impish.html The Bileto autopkgtests show (ignoring two unrelated/flaky failures in universe packages: suricata & mosquitto) that: * The systemd "tests-in-lxd" test fails, for snapd's "WARNING: cgroup v2 is not fully supported yet, proceeding with partial confinement" stderr output. If that stderr output is muted/ignored (by modifying autopkgtests itself) the test passes, as tested locally. * The snapd "autopkgtest:adt-local:tests/smoke/sandbox" spread test fails with an "all ubuntu systems must have strict confinement" error message. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1850667 Title: Switch to "unified" cgroup hierarchy (cgroupv2) Status in lxc: Fix Released Status in lxd: Fix Released Status in snapd: Confirmed Status in docker.io package in Ubuntu: Fix Released Status in lxc package in Ubuntu: Fix Released Status in snapd package in Ubuntu: In Progress Status in systemd package in Ubuntu: Confirmed Status in lxc package in Debian: Fix Released Status in systemd package in Debian: Fix Released Bug description: Systemd upstream switched the default cgroup hierarchy to unified with v243. This change is reverted by the Ubuntu systemd packages, but as unified is the way to go per upstream support should be added to all relevant Ubuntu packges (and snaps): https://github.com/systemd/systemd/blob/v243/NEWS#L56 * systemd now defaults to the "unified" cgroup hierarchy setup during build-time, i.e. -Ddefault-hierarchy=unified is now the build-time default. Previously, -Ddefault-hierarchy=hybrid was the default. This change reflects the fact that cgroupsv2 support has matured substantially in both systemd and in the kernel, and is clearly the way forward. Downstream production distributions might want to continue to use -Ddefault-hierarchy=hybrid (or even =legacy) for their builds as unfortunately the popular container managers have not caught up with the kernel API changes. Systemd is rebuilt using the new default and is available from the following PPA for testing: https://launchpad.net/~rbalint/+archive/ubuntu/systemd-unified-cgh The autopkgtest results against other packges are available here: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest- eoan-rbalint-systemd-unified-cgh/?format=plain https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest- focal-rbalint-systemd-unified-cgh/?format=plain lxc autopkgtest failing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest- eoan-rbalint-systemd-unified- cgh/eoan/amd64/d/docker.io/20191030_155944_2331e@/log.gz snapd autopkgtest failing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest- eoan-rbalint-systemd-unified- cgh/eoan/amd64/s/snapd/20191030_161354_94b26@/log.gz docker.io autopkgtest failing: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest- eoan-rbalint-systemd-unified- cgh/eoan/amd64/d/docker.io/20191030_155944_2331e@/log.gz To manage notifications about this bug go to: https://bugs.launchpad.net/lxc/+bug/1850667/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
