error adding pod to CNI network "podman": unexpected end of JSON input

[nevotheless]

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug

Description

Steps to reproduce the issue:

1. brew install podman

2. podman machine init

3. podman machine start

4. Rodman run hello-world

Describe the results you received:

Error: error preparing container 3007ab3e8cb688ea22793345e480fd8e707f4334a73a936a4725d06ce10db746 for attach: error configuring network namespace for container 3007ab3e8cb688ea22793345e480fd8e707f4334a73a936a4725d06ce10db746: error adding pod musing_dewdney_musing_dewdney to CNI network "podman": unexpected end of JSON input

Describe the results you expected:
I expected the output of the hello-world container.

Additional information you deem important (e.g. issue happens only occasionally):
kubernetes/minikube#12581 is having the same issue.
I've also had a cgroupv2 related issue a couple of days ago maybe this relates to cgroup as well somehow.

Output of podman version:

Client:
Version:      3.4.0
API Version:  3.4.0
Go Version:   go1.17.2
Built:        Thu Sep 30 20:44:31 2021
OS/Arch:      darwin/arm64

Server:
Version:      3.3.1
API Version:  3.3.1
Go Version:   go1.16.6
Built:        Mon Aug 30 22:45:47 2021
OS/Arch:      linux/arm64

Output of podman info --debug:

host:
  arch: arm64
  buildahVersion: 1.22.3
  cgroupControllers: []
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.0.29-2.fc34.aarch64
    path: /usr/bin/conmon
    version: 'conmon version 2.0.29, commit: '
  cpus: 1
  distribution:
    distribution: fedora
    version: "34"
  eventLogger: journald
  hostname: localhost
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 1000
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 1000
      size: 1
    - container_id: 1
      host_id: 100000
      size: 65536
  kernel: 5.14.9-200.fc34.aarch64
  linkmode: dynamic
  logDriver: ""
  memFree: 756273152
  memTotal: 2050326528
  ociRuntime:
    name: crun
    package: crun-1.0-1.fc34.aarch64
    path: /usr/bin/crun
    version: |-
      crun version 1.0
      commit: 139dc6971e2f1d931af520188763e984d6cdfbf8
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +YAJL
  os: linux
  remoteSocket:
    exists: true
    path: /run/user/1000/podman/podman.sock
  security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: true
  serviceIsRemote: true
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns-1.1.12-2.fc34.aarch64
    version: |-
      slirp4netns version 1.1.12
      commit: 7a104a101aa3278a2152351a082a6df71f57c9a3
      libslirp: 4.4.0
      SLIRP_CONFIG_VERSION_MAX: 3
      libseccomp: 2.5.0
  swapFree: 0
  swapTotal: 0
  uptime: 12m 48.64s
plugins:
  log: null
  network: null
  volume: null
registries:
  search:
  - docker.io
store:
  configFile: /var/home/core/.config/containers/storage.conf
  containerStore:
    number: 4
    paused: 0
    running: 0
    stopped: 4
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /var/home/core/.local/share/containers/storage
  graphStatus:
    Backing Filesystem: xfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Using metacopy: "false"
  imageStore:
    number: 2
  runRoot: /run/user/1000/containers
  volumePath: /var/home/core/.local/share/containers/storage/volumes
version:
  APIVersion: 3.3.1
  Built: 1630356347
  BuiltTime: Mon Aug 30 20:45:47 2021
  GitCommit: ""
  GoVersion: go1.16.6
  OsArch: linux/arm64
  Version: 3.3.1

Package info (e.g. output of rpm -q podman or apt list podman):

podman: stable 3.4.0 (bottled), HEAD
Tool for managing OCI containers and pods
https://podman.io/
/opt/homebrew/Cellar/podman/3.4.0_2 (170 files, 40.4MB) *
  Poured from bottle on 2021-10-15 at 23:09:21
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/podman.rb
License: Apache-2.0
==> Dependencies
Build: go ✘, go-md2man ✘
Required: qemu ✔
==> Options
--HEAD
	Install HEAD version
==> Caveats
zsh completions have been installed to:
  /opt/homebrew/share/zsh/site-functions
==> Analytics
install: 12,574 (30 days), 25,993 (90 days), 52,585 (365 days)
install-on-request: 12,569 (30 days), 25,986 (90 days), 52,474 (365 days)
build-error: 0 (30 days)

Have you tested with the latest version of Podman and have you checked the Podman Troubleshooting Guide? (https://github.com/containers/podman/blob/master/troubleshooting.md)

Yes

Additional environment details (AWS, VirtualBox, physical, etc.):
MacBook Pro (13", M1, 2020) MacOS 11.6 (20G165)

[jgowdy]

I am experiencing this same issue on macOS, both x64 and arm64.

I removed Docker Desktop, Rancher Desktop, removed podman, rm -rf ~/.config/containers ~/.local/share/containers ~/.docker, and rebooted. Reinstalled podman, podman machine init, podman machine start, podman run -it alpine sh and got the same result.

[afbjorklund]

Same as:

• Issue podman run returns error "unexpected end of JSON input" #11837

[mheon]

Closing as a dupe

[afbjorklund]

You might want to add something to the home page, to avoid all these duplicate error reports ?

https://podman.io/getting-started/installation

[cheyang0323]

I am experiencing this same issue on macOS on the x64

❯ podman version
Client:
Version: 3.4.0
API Version: 3.4.0
Go Version: go1.17.2
Built: Fri Oct 1 02:44:31 2021
OS/Arch: darwin/amd64

Server:
Version: 3.3.1
API Version: 3.3.1
Go Version: go1.16.6
Built: Tue Aug 31 04:46:36 2021
OS/Arch: linux/amd64

[mheon]

We have a troubleshooting doc, that seems like an appropriate place.

[mfouesneau]

Sorry but what the actual fix?

[afbjorklund]

Sorry but what the actual fix?

The fixes come every fortnight, so the workaround is to pick a pre-release from the "devel" stream: #11837 (comment)

[mfouesneau]

Cannot connect to Podman. Please verify your connection to the Linux system using podman system connection list, or try podman machine init and podman machine start to manage a new Linux VM
Error: unable to connect to Podman. failed to create sshClient: Connection to bastion host (ssh://core@localhost:56781/run/user/1000/podman/podman.sock) failed.: dial tcp [::1]:56781: connect: connection refused