aarch64 cross-build fails: Error: OCI runtime error: crun: Failed to re-execute libcrun via memory file descriptor

[rmsc]

Cross-building the fedora-bootc:44 image:

$ sudo podman run --rm -it --platform=linux/aarch64 --privileged --pull=newer  --security-opt label=type:unconfined_t  -v ./output:/output  -v /var/lib/containers/storage:/var/lib/containers/storage ghcr.io/osbuild/image-builder-cli:latest build qcow2 --arch aarch64 --bootc-default-fs btrfs --bootc-ref quay.io/fedora/fedora-bootc:44 --output-name fedora-bootc-44
error: running quay.io/fedora/fedora-bootc:44 container failed: exit status 126
stderr:
Failed to re-execute libcrun via memory file descriptor
time="2026-07-10T14:35:55Z" level=error msg="Removing container e12b9ba7b38a6f34222ce0eafb33c4b89ab40fc3c11cfc1267a5342a6ff5fc58 from runtime after creation failed"
Error: OCI runtime error: crun: Failed to re-execute libcrun via memory file descriptor

$ sudo podman info
host:
  arch: amd64
  buildahVersion: 1.44.0
  cdiSpecDirs:
  - /etc/cdi
  - /var/run/cdi
  cgroupControllers:
  - cpuset
  - cpu
  - io
  - memory
  - hugetlb
  - pids
  - rdma
  - misc
  - dmem
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-1:2.2.1-1
    path: /usr/bin/conmon
    version: 'conmon version 2.2.1, commit: c8cc2c4db27531bd4e084ce7857f73cd21ee639d'
  cpuUtilization:
    idlePercent: 98.34
    systemPercent: 0.79
    userPercent: 0.87
  cpus: 16
  databaseBackend: sqlite
  distribution:
    distribution: arch
    version: unknown
  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: 2048
  hostname: <my-hostname>
  idMappings:
    gidmap: null
    uidmap: null
  kernel: 7.1.3-arch1-1
  linkmode: dynamic
  logDriver: journald
  memFree: 22957809664
  memTotal: 29209890816
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    defaultNetwork: podman
    dns:
      package: aardvark-dns-2.0.0-1
      path: /usr/lib/podman/aardvark-dns
      version: aardvark-dns 2.0.0
    package: netavark-2.0.0-1
    path: /usr/lib/podman/netavark
    version: netavark 2.0.0
  ociRuntime:
    name: crun
    package: crun-1.28-1
    path: /usr/bin/crun
    version: |-
      crun version 1.28-dirty
      commit: 54f16ffbefcd022bf032af768b5c5ce075c18bfc
      rundir: /run/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +JSON_C
  os: linux
  pasta:
    executable: /usr/bin/pasta
    package: passt-2026_06_11.a9c61ff-1
    version: |
      pasta 2026_06_11.a9c61ff
      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
  rootlessPortForwarder: rootlessport
  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: false
  serviceIsRemote: false
  swapFree: 34359734272
  swapTotal: 34359734272
  uptime: 0h 6m 49.00s
  variant: ""
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  localhost:5000:
    Blocked: false
    Insecure: true
    Location: localhost:5000
    MirrorByDigestOnly: false
    Mirrors: null
    Prefix: localhost:5000
    PullFromMirror: ""
  search:
  - docker.io
  - quay.io
store:
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.mountopt: nodev,metacopy=on
  graphRoot: /var/lib/containers/storage
  graphRootAllocated: 1023117623296
  graphRootUsed: 614563069952
  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: 5
  runRoot: /run/containers/storage
  transientStore: false
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 6.0.0
  Built: 1782770596
  BuiltTime: Mon Jun 29 23:03:16 2026
  GitCommit: a8ed4b6dd12992decf659cadfdfb3d0cb1937748
  GoVersion: go1.26.4-X:nodwarf5
  Os: linux
  OsArch: linux/amd64
  Version: 6.0.0

[rmsc]

The relevant binfmt configuration:

$ cat /proc/sys/fs/binfmt_misc/qemu-aarch64
enabled
interpreter /usr/bin/qemu-aarch64-static
flags: POF
offset 0
magic 7f454c460201010000000000000000000200b700
mask ffffffffffffff00fffffffffffffffffeffffff

[rmsc]

The image platform mismatch was a red herring (forgot to pull the aarch64 version of the fedora-bootc image). The error remains after pulling the correct image and rebooting. Edited the report above.

[supakeen]

Needs some investigation from my side, hope to get to it soon.