Dear all, Using LXC in my Gentoo environment for years (since 0.8.4) and currently using V2.1.1 in Production, I'm just evaluating LXC 3.2.1.
I'm still using CGroups V1 with all available controllers mounted on /cgroups and /cgroups/lxc as a parent group. Until yet, this works well. But with V3.2.1, there's an issue starting with writing the setup to the device cgroup. Below, you'll find the respective log output at trace level. The cgroup feature itself is working: There are device.* directory items below /cgroup, /cgroup/lxc and -- if I mkdir such -- /cgroup/lxc/foo , also. If I'm using the same configuration files, root image, kernel etc. but with a LXC 2.1.1 starter, all works well and the container will start up. Any hint's what's going wrong here and how to fix it? Thank you in advance Guido [...] lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1018 - basecginfo is: lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1019 - 2:cpuset,cpu,cpuacct,blkio,memory,devices,freezer,net_cls,perf_event,net_prio,pids:/ 1:name=openrc:/ 0::/ lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 0: cpuset lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 1: cpu lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 2: cpuacct lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 3: blkio lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 4: memory lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 5: devices lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 6: freezer lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 7: net_cls lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 8: perf_event lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 9: net_prio lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 10: pids lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1022 - kernel subsystem 11: cgroup2 lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_basecg_debuginfo:1025 - named subsystem 0: name=openrc lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:cg_hybrid_init:2563 - No controllers are enabled for delegation in the unified hierarchy lxc-start evalfly6 20190815111414.815 ERROR cgfsng - cgroups/cgfsng.c:cg_hybrid_get_controllers:734 - Found hierarchy not under /sys/fs/cgroup: "/cgroup rw,relatime - cgroup cgroup rw,cpuset,cpu,cpuacct,blkio,memory,devices,freezer,net_cls,perf_event,> " lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:cg_hybrid_init:2589 - Writable cgroup hierarchies: lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:999 - Hierarchies: lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:1004 - 0: base_cgroup: / lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:1005 - mountpoint: /sys/fs/cgroup/openrc lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:1006 - controllers: lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:1008 - 0: name=openrc lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:1004 - 1: base_cgroup: / lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:1005 - mountpoint: /sys/fs/cgroup/unified lxc-start evalfly6 20190815111414.815 TRACE cgfsng - cgroups/cgfsng.c:lxc_cgfsng_print_hierarchies:1006 - controllers: lxc-start evalfly6 20190815111414.815 TRACE cgroup - cgroups/cgroup.c:cgroup_init:61 - Initialized cgroup driver cgfsng lxc-start evalfly6 20190815111414.815 TRACE cgroup - cgroups/cgroup.c:cgroup_init:66 - Running with hybrid cgroup layout [...] lxc-start evalfly6 20190815111414.912 NOTICE conf - conf.c:lxc_setup:3751 - The container "evalfly6" is set up lxc-start evalfly6 20190815111414.955 WARN cgfsng - cgroups/cgfsng.c:get_hierarchy:205 - There is no useable devices controller lxc-start evalfly6 20190815111414.955 ERROR cgfsng - cgroups/cgfsng.c:cg_legacy_set_data:2301 - Failed to setup limits for the "devices" controller. The controller seems to be unused by "cgfsng" cgroup driver or not enabled on the cgroup hierarchy lxc-start evalfly6 20190815111414.955 WARN cgfsng - cgroups/cgfsng.c:__cg_legacy_setup_limits:2341 - Failed to set "devices.deny" to "a" lxc-start evalfly6 20190815111414.955 ERROR start - start.c:lxc_spawn:1883 - Failed to setup legacy device cgroup controller limits Grüße Guido _______________________________________________ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
