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Docker kill hangs, dockerd stuck, need to reboot my system to repair


(Cs97062845) #1

OS is:
Linux amd64 4.4.0-128 Ubuntu 16.04 LTS

Docker package is:
Package: docker-ce
Architecture: amd64
Version: 18.05.0~ce~3-0~ubuntu

Trying to “docker kill” one of the running containers. Usually this succeeds, but sometimes this hangs forever. The docker kill command just doesn’t return.

This seems to happen more often when getting back to my workstation (which I don’t turn off normally) in the morning.

What I tried:

  • interrupt and rerun the same command. Does not work.
  • interrupt the command and restart the docker service. Does not work and it hangs.
  • kill the dockerd process, which immediately respawns. Nothing is resolved though, as things are exactly as before

Only a system reboot seems to solve this condition.

Would be great to know what/why this is happening and how to avoid or solve these problems.
Here’s some syslog messages from when I tried the above. If there’s any other info I can extract from my system, please let me know.

# This is yesterday. Everything working well so far...

Jun 25 17:35:57 cosimo-desktop dockerd[2232]: time="2018-06-25T17:35:57.176479931+02:00" level=info msg="Layer sha256:6ce5f8db4cdc9050c91eecbc49622027e8742b5d3284f7ff3dc4556aa6f3adc9 cleaned up"
Jun 25 17:35:57 cosimo-desktop kernel: [ 9449.106982] aufs au_opts_verify:1597:dockerd[2260]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:35:57 cosimo-desktop kernel: [ 9449.151617] aufs au_opts_verify:1597:dockerd[2260]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:35:57 cosimo-desktop kernel: [ 9449.196373] aufs au_opts_verify:1597:dockerd[2260]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:35:57 cosimo-desktop dockerd[2232]: time="2018-06-25T17:35:57.434599039+02:00" level=info msg="Layer sha256:6ce5f8db4cdc9050c91eecbc49622027e8742b5d3284f7ff3dc4556aa6f3adc9 cleaned up"
Jun 25 17:36:15 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:15+02:00" level=info msg="shim reaped" id=0f3a4e38e297419ea28087c1078e36009e39b83f98b12830a517af1cc60458b0 module="containerd/tasks"
Jun 25 17:36:15 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:15.383041554+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 25 17:36:23 cosimo-desktop kernel: [ 9475.261703] aufs au_opts_verify:1597:dockerd[2290]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:36:23 cosimo-desktop kernel: [ 9475.266343] aufs au_opts_verify:1597:dockerd[2274]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23.394556611+02:00" level=info msg="No non-localhost DNS nameservers are left in resolv.conf. Using default external servers: [nameserver 8.8.8.8 nameserver 8.8.4.4]"
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23.394587689+02:00" level=info msg="IPv6 enabled; Adding default IPv6 external servers: [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844]"
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23+02:00" level=info msg="shim docker-containerd-shim started" address="/containerd-shim/moby/2ebd17ee014d0b8ad6688b1d62389dfb9b4680275b782f1888a298947cf92027/shim.sock" debug=false module="containerd/tasks" pid=12367
Jun 25 17:36:23 cosimo-desktop kernel: [ 9475.294496] aufs au_opts_verify:1597:dockerd[2274]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:36:23 cosimo-desktop kernel: [ 9475.337051] aufs au_opts_verify:1597:dockerd[17139]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23.466300073+02:00" level=info msg="No non-localhost DNS nameservers are left in resolv.conf. Using default external servers: [nameserver 8.8.8.8 nameserver 8.8.4.4]"
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23.466320028+02:00" level=info msg="IPv6 enabled; Adding default IPv6 external servers: [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844]"
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23+02:00" level=info msg="shim docker-containerd-shim started" address="/containerd-shim/moby/5aa542c1539bd3e89d360153ef45f82300aba9b5cf08b03514b64fb3b395d27f/shim.sock" debug=false module="containerd/tasks" pid=12416
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23+02:00" level=info msg="shim reaped" id=2ebd17ee014d0b8ad6688b1d62389dfb9b4680275b782f1888a298947cf92027 module="containerd/tasks"
Jun 25 17:36:23 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:23.839634944+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 25 17:36:33 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:33.829950150+02:00" level=info msg="Container f5200e57b676926c1ac40aa14369474cad72f82edd47c393e92b9246a6c5e9c4 failed to exit within 10 seconds of signal 15 - using the force"
Jun 25 17:36:34 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:34+02:00" level=info msg="shim reaped" id=f5200e57b676926c1ac40aa14369474cad72f82edd47c393e92b9246a6c5e9c4 module="containerd/tasks"
Jun 25 17:36:34 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:34.114426064+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 25 17:36:34 cosimo-desktop kernel: [ 9486.247245] aufs au_opts_verify:1597:dockerd[2274]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:36:34 cosimo-desktop kernel: [ 9486.286530] aufs au_opts_verify:1597:dockerd[2274]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:36:34 cosimo-desktop kernel: [ 9486.343903] aufs au_opts_verify:1597:dockerd[2284]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:36:34 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:34.477527158+02:00" level=info msg="No non-localhost DNS nameservers are left in resolv.conf. Using default external servers: [nameserver 8.8.8.8 nameserver 8.8.4.4]"
Jun 25 17:36:34 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:34.477549518+02:00" level=info msg="IPv6 enabled; Adding default IPv6 external servers: [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844]"
Jun 25 17:36:34 cosimo-desktop dockerd[2232]: time="2018-06-25T17:36:34+02:00" level=info msg="shim docker-containerd-shim started" address="/containerd-shim/moby/dbbf94fc9eef513a43453ec4f15496c98761a7e158f1f4476c68c81b544a96a4/shim.sock" debug=false module="containerd/tasks" pid=13246
Jun 25 17:37:05 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:05.290448986+02:00" level=info msg="Container 74b04139b944b193bf9e4d6aea274398f8cef9248b2cbb5a901e11c4da90eb06 failed to exit within 10 seconds of signal 15 - using the force"
Jun 25 17:37:05 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:05+02:00" level=info msg="shim reaped" id=74b04139b944b193bf9e4d6aea274398f8cef9248b2cbb5a901e11c4da90eb06 module="containerd/tasks"
Jun 25 17:37:05 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:05.470007707+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 25 17:37:05 cosimo-desktop kernel: [ 9517.623668] aufs au_opts_verify:1597:dockerd[2285]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:37:05 cosimo-desktop kernel: [ 9517.667122] aufs au_opts_verify:1597:dockerd[2285]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:37:05 cosimo-desktop kernel: [ 9517.723692] aufs au_opts_verify:1597:dockerd[2285]: dirperm1 breaks the protection by the permission bits on the lower branch
Jun 25 17:37:05 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:05+02:00" level=info msg="shim docker-containerd-shim started" address="/containerd-shim/moby/bdd89520862da8c6f133f4702c3f8482258ef46f3e4fd5fe7bdb47bacdd3fbc8/shim.sock" debug=false module="containerd/tasks" pid=14952
Jun 25 17:37:20 cosimo-desktop kernel: [ 9532.372720] aufs au_opts_verify:1597:dockerd[17139]: dirperm1 breaks the protection by the permission bits on the lower branch

# Last log messages of the day yesterday. Again, everything worked.
Jun 25 17:37:20 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:20.501234316+02:00" level=info msg="No non-localhost DNS nameservers are left in resolv.conf. Using default external servers: [nameserver 8.8.8.8 nameserver 8.8.4.4]"
Jun 25 17:37:20 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:20.501248865+02:00" level=info msg="IPv6 enabled; Adding default IPv6 external servers: [nameserver 2001:4860:4860::8888 nameserver 2001:4860:4860::8844]"
Jun 25 17:37:20 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:20+02:00" level=info msg="shim docker-containerd-shim started" address="/containerd-shim/moby/2ebd17ee014d0b8ad6688b1d62389dfb9b4680275b782f1888a298947cf92027/shim.sock" debug=false module="containerd/tasks" pid=15778
Jun 25 17:37:20 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:20+02:00" level=info msg="shim reaped" id=2ebd17ee014d0b8ad6688b1d62389dfb9b4680275b782f1888a298947cf92027 module="containerd/tasks"
Jun 25 17:37:20 cosimo-desktop dockerd[2232]: time="2018-06-25T17:37:20.915806872+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"

# First log messages from today...

Jun 26 09:03:23 cosimo-desktop dockerd[2232]: time="2018-06-26T09:03:23.173349999+02:00" level=warning msg="Health check for container 3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d error: context deadline exceeded"
Jun 26 09:03:33 cosimo-desktop dockerd[2232]: time="2018-06-26T09:03:33.175812728+02:00" level=warning msg="Health check for container 3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d error: context deadline exceeded"
Jun 26 09:03:43 cosimo-desktop dockerd[2232]: time="2018-06-26T09:03:43.180288484+02:00" level=warning msg="Health check for container 3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d error: context deadline exceeded"
Jun 26 09:03:53 cosimo-desktop dockerd[2232]: time="2018-06-26T09:03:53.186211877+02:00" level=warning msg="Health check for container 3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d error: context deadline exceeded"
Jun 26 09:03:53 cosimo-desktop dockerd[2232]: time="2018-06-26T09:03:53.768506240+02:00" level=warning msg="Ignoring Exit Event, no such exec command found" container=3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d exec-id=f988accac3ff131a3cb594320af22961c101a997899aa86c10efd81eb6876c36 exec-pid=14415
Jun 26 09:04:03 cosimo-desktop dockerd[2232]: time="2018-06-26T09:04:03.191768014+02:00" level=warning msg="Health check for container 3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d error: context deadline exceeded"

# ... etc ...

Jun 26 09:05:23 cosimo-desktop dockerd[2232]: time="2018-06-26T09:05:23.248934784+02:00" level=warning msg="Health check for container 3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d error: context deadline exceeded"
Jun 26 09:05:33 cosimo-desktop dockerd[2232]: time="2018-06-26T09:05:33.253814623+02:00" level=warning msg="Health check for container 3e6f40ad04fe5a337b465d9971602d87257f55696baa777428bca05cd2a7a04d error: context deadline exceeded"

# ... more of the same, until I killed dockerd, so this is the restart I reckon ...

Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38.848275486+02:00" level=warning msg="Error while setting daemon root propagation, this is not generally critical but may cause some functionality to not work or fallback to less desirable behavior" dir=/var/lib/docker error="error getting daemon root's parent mount: Could not find source mount of /var/lib/docker"
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38.848813741+02:00" level=info msg="libcontainerd: started new docker-containerd process" pid=18429
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="starting containerd" module=containerd revision=773c489c9c1b21a6d78b5c538cd395416ec50f88 version=v1.0.3
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.content.v1.content"..." module=containerd type=io.containerd.content.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.snapshotter.v1.btrfs"..." module=containerd type=io.containerd.snapshotter.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=warning msg="failed to load plugin io.containerd.snapshotter.v1.btrfs" error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter" module=containerd
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.snapshotter.v1.overlayfs"..." module=containerd type=io.containerd.snapshotter.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.metadata.v1.bolt"..." module=containerd type=io.containerd.metadata.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=warning msg="could not use snapshotter btrfs in metadata plugin" error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter" module="containerd/io.containerd.metadata.v1.bolt"
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.differ.v1.walking"..." module=containerd type=io.containerd.differ.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.gc.v1.scheduler"..." module=containerd type=io.containerd.gc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.containers"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.content"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.diff"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.events"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.healthcheck"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.images"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.leases"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.namespaces"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.snapshots"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.monitor.v1.cgroups"..." module=containerd type=io.containerd.monitor.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.runtime.v1.linux"..." module=containerd type=io.containerd.runtime.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.tasks"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.version"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.introspection"..." module=containerd type=io.containerd.grpc.v1
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd-debug.sock" module="containerd/debug"
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd.sock" module="containerd/grpc"
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38+02:00" level=info msg="containerd successfully booted in 0.058746s" module=containerd
Jun 26 11:55:38 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:38.928553671+02:00" level=info msg="[graphdriver] using prior storage driver: aufs"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.511266734+02:00" level=info msg="Graph migration to content-addressability took 0.00 seconds"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.511418698+02:00" level=warning msg="Your kernel does not support swap memory limit"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.511439593+02:00" level=warning msg="Your kernel does not support cgroup rt period"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.511444939+02:00" level=warning msg="Your kernel does not support cgroup rt runtime"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.511752297+02:00" level=info msg="Loading containers: start."
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39+02:00" level=error msg="connecting to shim" error=<nil> id=5fcb4193561328264a9d94e3a3e7a22ddd7218867668c7ef5001ce7062b56532 module="containerd/io.containerd.runtime.v1.linux" namespace=moby
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.838713550+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.845154627+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39+02:00" level=error msg="connecting to shim" error=<nil> id=b1fadaf21634b12b09360124793a7452e9f779de1e6f6e7df3eea24992aed502 module="containerd/io.containerd.runtime.v1.linux" namespace=moby
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.859569221+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.866365972+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.907435744+02:00" level=warning msg="Ignoring Exit Event, no such exec command found" container=5fcb4193561328264a9d94e3a3e7a22ddd7218867668c7ef5001ce7062b56532 exec-id=5fcb4193561328264a9d94e3a3e7a22ddd7218867668c7ef5001ce7062b56532 exec-pid=16928
Jun 26 11:55:39 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:39.926238532+02:00" level=warning msg="Ignoring Exit Event, no such exec command found" container=b1fadaf21634b12b09360124793a7452e9f779de1e6f6e7df3eea24992aed502 exec-id=b1fadaf21634b12b09360124793a7452e9f779de1e6f6e7df3eea24992aed502 exec-pid=17011
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40+02:00" level=error msg="connecting to shim" error=<nil> id=dff6348fb6044f481ff6dd8b99754cc19786a16aa014e389b1ae33875cdb7a6b module="containerd/io.containerd.runtime.v1.linux" namespace=moby
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40.208436289+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40.214380930+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40.269955123+02:00" level=warning msg="Ignoring Exit Event, no such exec command found" container=dff6348fb6044f481ff6dd8b99754cc19786a16aa014e389b1ae33875cdb7a6b exec-id=dff6348fb6044f481ff6dd8b99754cc19786a16aa014e389b1ae33875cdb7a6b exec-pid=17376
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40+02:00" level=error msg="connecting to shim" error=<nil> id=0ae86054d9e29ec133536e7ec56edfc46823f68633d4a16bae1e252a9d60125a module="containerd/io.containerd.runtime.v1.linux" namespace=moby
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40.422592642+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40.427727328+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 11:55:40 cosimo-desktop dockerd[18419]: time="2018-06-26T11:55:40.458323014+02:00" level=warning msg="Ignoring Exit Event, no such exec command found" container=0ae86054d9e29ec133536e7ec56edfc46823f68633d4a16bae1e252a9d60125a exec-id=0ae86054d9e29ec133536e7ec56edfc46823f68633d4a16bae1e252a9d60125a exec-pid=17360
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.109625720+02:00" level=warning msg="Error while setting daemon root propagation, this is not generally critical but may cause some functionality to not work or fallback to less desirable behavior" dir=/var/lib/docker error="error getting daemon root's parent mount: Could not find source mount of /var/lib/docker"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.110019742+02:00" level=info msg="libcontainerd: started new docker-containerd process" pid=21049
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="starting containerd" module=containerd revision=773c489c9c1b21a6d78b5c538cd395416ec50f88 version=v1.0.3
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.content.v1.content"..." module=containerd type=io.containerd.content.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.snapshotter.v1.btrfs"..." module=containerd type=io.containerd.snapshotter.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=warning msg="failed to load plugin io.containerd.snapshotter.v1.btrfs" error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter" module=containerd
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.snapshotter.v1.overlayfs"..." module=containerd type=io.containerd.snapshotter.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.metadata.v1.bolt"..." module=containerd type=io.containerd.metadata.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=warning msg="could not use snapshotter btrfs in metadata plugin" error="path /var/lib/docker/containerd/daemon/io.containerd.snapshotter.v1.btrfs must be a btrfs filesystem to be used with the btrfs snapshotter" module="containerd/io.containerd.metadata.v1.bolt"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.differ.v1.walking"..." module=containerd type=io.containerd.differ.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.gc.v1.scheduler"..." module=containerd type=io.containerd.gc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.containers"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.content"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.diff"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.events"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.healthcheck"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.images"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.leases"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.namespaces"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.snapshots"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.monitor.v1.cgroups"..." module=containerd type=io.containerd.monitor.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.runtime.v1.linux"..." module=containerd type=io.containerd.runtime.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.tasks"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.version"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="loading plugin "io.containerd.grpc.v1.introspection"..." module=containerd type=io.containerd.grpc.v1
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd-debug.sock" module="containerd/debug"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd.sock" module="containerd/grpc"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26+02:00" level=info msg="containerd successfully booted in 0.011159s" module=containerd
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.134201908+02:00" level=info msg="[graphdriver] using prior storage driver: aufs"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.257828698+02:00" level=info msg="Graph migration to content-addressability took 0.00 seconds"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.257977059+02:00" level=warning msg="Your kernel does not support swap memory limit"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.257997772+02:00" level=warning msg="Your kernel does not support cgroup rt period"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.258002655+02:00" level=warning msg="Your kernel does not support cgroup rt runtime"
Jun 26 12:06:26 cosimo-desktop dockerd[21038]: time="2018-06-26T12:06:26.258370784+02:00" level=info msg="Loading containers: start."
Jun 26 12:13:01 cosimo-desktop dockerd[21038]: time="2018-06-26T12:13:01+02:00" level=error msg="connecting to shim" error=<nil> id=fcaf63509e623b0db99578b38f8450251e14b93e456983179b75ef064af0dcdc module="containerd/io.containerd.runtime.v1.linux" namespace=moby
Jun 26 12:13:01 cosimo-desktop dockerd[21038]: time="2018-06-26T12:13:01.799833497+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 12:13:01 cosimo-desktop dockerd[21038]: time="2018-06-26T12:13:01.804674453+02:00" level=info msg="ignoring event" module=libcontainerd namespace=moby topic=/tasks/delete type="*events.TaskDelete"
Jun 26 12:13:01 cosimo-desktop dockerd[21038]: time="2018-06-26T12:13:01.862507762+02:00" level=warning msg="Ignoring Exit Event, no such exec command found" container=fcaf63509e623b0db99578b38f8450251e14b93e456983179b75ef064af0dcdc exec-id=fcaf63509e623b0db99578b38f8450251e14b93e456983179b75ef064af0dcdc exec-pid=17666

# At this point things are completely non-functional