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conmon: container exec no longer returns exit code #26981

@martinpitt

Description

@martinpitt

Issue Description

Somewhere between Sep 2 and 4 the packages in podman-next broke healthchecking. This wasn't spotted by our per-PR cockpit-podman "revdeps" checks. A lot of PRs were merged red recently (understandably) because Testing Farm had major trouble in the past days, so many tests never actually started. Or something landed in podman-next that wasn't covered by podman revdeps, e.g. crun or similar?

Steps to reproduce the issue

podman run --name sick -dt --health-cmd false --health-interval 5s docker.io/busybox

Describe the results you received

podman ps keeps claiming "healthy:

16ebccaf6eef  docker.io/library/busybox:latest  sh          4 minutes ago  Up 4 minutes (healthy)              sick

and journal keeps logging

container health_status 16ebccaf6eef8330d3c1206579834075950306da9f84c1121959078a1c706263 (image=docker.io/library/busybox:latest, name=sick, health_status=healthy, health_failing_streak=0, health_log=)

Describe the results you expected

Container should be unhealthy.

podman info output

host:
  arch: amd64
  buildahVersion: 1.42.0-dev
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - rdma
  - misc
  - dmem
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.13-1.20250903100912264418.main.69.ge722bc2.fc42.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.13, commit: '
  cpuUtilization:
    idlePercent: 95.35
    systemPercent: 2.34
    userPercent: 2.32
  cpus: 1
  databaseBackend: sqlite
  distribution:
    distribution: fedora
    variant: cloud
    version: "42"
  emulatedArchitectures:
  - linux/arm
  - linux/arm64
  - linux/arm64be
  - linux/loong64
  - linux/mips
  - linux/mips64
  - linux/ppc
  - linux/ppc64
  - linux/ppc64le
  - linux/riscv32
  - linux/riscv64
  - linux/s390x
  eventLogger: journald
  freeLocks: 2047
  hostname: fedora-42-127-0-0-2-2201
  idMappings:
    gidmap: null
    uidmap: null
  kernel: 6.16.3-200.fc42.x86_64
  linkmode: dynamic
  logDriver: journald
  memFree: 510263296
  memTotal: 1126932480
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    dns:
      package: aardvark-dns-1.17.0~dev-1.20250826181710402652.main.8.g9e014c5.fc42.x86_64
      path: /usr/libexec/podman/aardvark-dns
      version: aardvark-dns 1.17.0-dev
    package: netavark-1.17.0~dev-1.20250825122416445226.main.22.g30c29d7.fc42.x86_64
    path: /usr/libexec/podman/netavark
    version: netavark 1.17.0-dev
  ociRuntime:
    name: crun
    package: crun-1.23.1-1.20250903065722086996.main.35.g99b6cadd.fc42.x86_64
    path: /usr/bin/crun
    version: |-
      crun version UNKNOWN
      commit: 524751d1ec4a83b21d3990d6d250da3f7fe4df95
      rundir: /run/user/0/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL
  os: linux
  pasta:
    executable: /usr/bin/pasta
    package: passt-0^20250805.g309eefd-2.fc42.x86_64
    version: |
      pasta 0^20250805.g309eefd-2.fc42.x86_64
      Copyright Red Hat
      GNU General Public License, version 2 or later
        <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.
  remoteSocket:
    exists: true
    path: /run/podman/podman.sock
  rootlessNetworkCmd: pasta
  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: false
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: true
  serviceIsRemote: false
  slirp4netns:
    executable: ""
    package: ""
    version: ""
  swapFree: 1126166528
  swapTotal: 1126166528
  uptime: 0h 15m 57.00s
  variant: ""
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - registry.fedoraproject.org
  - registry.access.redhat.com
  - docker.io
store:
  configFile: /usr/share/containers/storage.conf
  containerStore:
    number: 1
    paused: 0
    running: 1
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.additionalImageStores:
    - /usr/lib/containers/storage
    overlay.imagestore: /usr/lib/containers/storage
    overlay.mountopt: nodev,metacopy=on
  graphRoot: /var/lib/containers/storage
  graphRootAllocated: 12802043904
  graphRootUsed: 2035154944
  graphStatus:
    Backing Filesystem: btrfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Supports shifting: "true"
    Supports volatile: "true"
    Using metacopy: "true"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 4
  runRoot: /run/containers/storage
  transientStore: false
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 5.7.0-dev
  BuildOrigin: 'Copr: rhcontainerbot/podman-next'
  Built: 1756857600
  BuiltTime: Wed Sep  3 00:00:00 2025
  GitCommit: 6cc74679e2f85d3ad0be939f6f7368a59df6eb71
  GoVersion: go1.24.6
  Os: linux
  OsArch: linux/amd64
  Version: 5.7.0-dev

Podman in a container

No

Privileged Or Rootless

Privileged

Upstream Latest Release

Yes

Additional environment details

Fedora 42 with podman-next COPR:

Upgrading:
 aardvark-dns                        x86_64 102:1.17.0~dev-1.20250826181710402652.main.8.g9e014c5.fc42     copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next   2.3 MiB
   replacing aardvark-dns            x86_64 2:1.16.0-1.fc42                                                updates                                                     2.3 MiB
 buildah                             x86_64 102:1.41.0-1.20250902202630851705.main.83.gf297289c7.fc42      copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next  30.9 MiB
   replacing buildah                 x86_64 2:1.41.3-1.fc42                                                updates                                                    30.9 MiB
 conmon                              x86_64 2:2.1.13-1.20250903100912264418.main.69.ge722bc2.fc42          copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next 170.7 KiB
   replacing conmon                  x86_64 2:2.1.13-1.fc42                                                fbf528756c684b6ab92bfe6b88c4f918                          166.3 KiB
 container-selinux                   noarch 102:2.241.0-1.20250901160001070837.main.3.g20230f8.fc42        copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next  72.6 KiB
   replacing container-selinux       noarch 4:2.241.0-1.fc42                                               updates                                                    72.6 KiB
 containers-common                   noarch 102:0.66.0~dev-1.20250903172927000225.main.14.ge06f072df1.fc42 copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next 132.1 KiB
   replacing containers-common       noarch 5:0.64.1-2.fc42                                                updates                                                   128.6 KiB
 containers-common-extra             noarch 102:0.66.0~dev-1.20250903172927000225.main.14.ge06f072df1.fc42 copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next   0.0   B
   replacing containers-common-extra noarch 5:0.64.1-2.fc42                                                updates                                                     0.0   B
 crun                                x86_64 102:1.23.1-1.20250903065722086996.main.35.g99b6cadd.fc42       copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next 577.2 KiB
   replacing crun                    x86_64 1.23.1-1.fc42                                                  updates                                                   573.1 KiB
 netavark                            x86_64 102:1.17.0~dev-1.20250825122416445226.main.22.g30c29d7.fc42    copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next  11.5 MiB
   replacing netavark                x86_64 2:1.16.1-1.fc42                                                updates                                                    11.4 MiB
 podman                              x86_64 102:5.7.0~dev-1.20250903205624286552.main.1516.6cc74679e2.fc42 copr:copr.fedorainfracloud.org:rhcontainerbot:podman-next  47.4 MiB
   replacing podman                  x86_64 5:5.6.0-1.fc42                                                 updates                                                    47.3 MiB

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