cgroups increase to 65555 preventing docker to start

Hi,

when I try to start a docker container, I get the erro

docker: Error response from daemon: failed to create shim task: OCI

runtime create failed: runc create failed: unable to start container

process: unable to apply cgroup configuration: mkdir

/sys/fs/cgroup/docker/dac0a619a2d6f980095c74a6a2b82a31bbfef721d5bc80fe9a9fb94fe48cfa37:

no space left on device: unknown.

Checking the number of cgroups shows that it’s at the limit (if I read

it right, no guarantees for that, cgroups isn’t my strong side), but

this is after only a few days of uptime:

$ find /sys/fs/cgroup/ -type d | wc -l

65534

$ cat /proc/cgroups

#subsys_name hierarchy num_cgroups enabled

cpuset 0 65536 1

cpu 0 65536 1

cpuacct 0 65536 1

blkio 0 65536 1

memory 0 65536 1

devices 0 65536 1

freezer 0 65536 1

net_cls 0 65536 1

perf_event 0 65536 1

net_prio 0 65536 1

hugetlb 0 65536 1

pids 0 65536 1

misc 0 65536 1

Is Guix using cgroups for building?

Is something broken in Guix or do I have to hunt elsewhere for fixes?

Other people seem to have similar problems, but only after massive

docker usage:

Best wishes,

Arne

--

Unpolitisch sein

heißt politisch sein,

ohne es zu merken.

draketo.de

Hello,

I have a similar issue, related to cgroups as well: after a recent

update, I cannot start my LXC containers anymore.

This is how I generally start one of my LXC containers, called arch:

# lxc-start -n arch

I add the -F switch to get the following more detailed error log:

lxc-start: arch: cgroups/cgfsng.c: cg_legacy_set_data: 2678 No such file or directory - 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: arch: cgroups/cgfsng.c: cgfsng_setup_limits_legacy: 2745 No such file or directory - Failed to set "devices.deny" to "a"

lxc-start: arch: start.c: lxc_spawn: 1896 Failed to setup legacy device cgroup controller limits

lxc-start: arch: start.c: __lxc_start: 2074 Failed to spawn container "arch"

lxc-start: arch: tools/lxc_start.c: main: 306 The container failed to start

lxc-start: arch: tools/lxc_start.c: main: 311 Additional information can be obtained by setting the --logfile and --logpriority options

I tried tinkering a little with the cgroups-related options in my

container configuration, but that had zero impact on the error message.

-

Sergiu