Skip to content

In "podman container run -it" with krun, Enter is not handled correctly in TUI app #28067

@ngicks

Description

@ngicks

Issue Description

Problem

With a normal container backed by crun, I can run TUI apps like htop, nvim or claude without any problem.

But if I run container with krun, i.e. with handler annotion like podman container run -it --rm --annotation=run.oci.handler=krun docker.io/library/ubuntu:noble-20260113, those apps can't be Enter-ed. Handling of enter is not correct so I can't, for example, send signals to process in htop's signal selection drop menu.

I'm sorry if it's known limitation. But I could not find documents about it.

Things I've tried

  • Using script wrapper in container: script -qc /bin/bash /dev/null

About podman info

  • podman is built using podman-static.
  • crun is built from source to enable libkrun.
  • libkrun is provided by nixpackage.

Steps to reproduce the issue

  1. LD_LIBRARY_PATH=$HOME/.nix-profile/lib podman container run -it --rm --annotation=run.oci.handler=krun docker.io/library/ubuntu:noble-20260113 (if you are using nix as a package manager. Library path may differ depending on environemnt)
  2. In container, apt update && apt install htop -y
  3. htop
  4. press k and Enter

Describe the results you received

Nothing happens.

Describe the results you expected

The program exits, or signal is sent and selected process stops.

podman info output

host:
  arch: amd64
  buildahVersion: 1.42.2
  cgroupControllers:
  - cpu
  - memory
  - pids
  cgroupManager: cgroupfs
  cgroupVersion: v2
  conmon:
    package: Unknown
    path: /home/ngicks/.local/containers/lib/podman/conmon
    version: 'conmon version 2.1.13, commit: 82de887596ed8ee6d9b2ee85e4f167f307bb569b'
  cpuUtilization:
    idlePercent: 99.74
    systemPercent: 0.15
    userPercent: 0.11
  cpus: 24
  databaseBackend: sqlite
  distribution:
    codename: noble
    distribution: ubuntu
    version: "24.04"
  emulatedArchitectures:
  - linux/arm
  - linux/arm64
  - linux/loong64
  - linux/mips
  - linux/mips64
  - linux/ppc
  - linux/ppc64
  - linux/ppc64le
  - linux/riscv32
  - linux/riscv64
  - linux/s390x
  eventLogger: file
  freeLocks: 2042
  hostname: ngicks
  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: 6.6.87.2-microsoft-standard-WSL2
  linkmode: dynamic
  logDriver: k8s-file
  memFree: 16696713216
  memTotal: 33191788544
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    dns:
      package: Unknown
      path: /home/ngicks/.local/containers/lib/podman/aardvark-dns
      version: aardvark-dns 1.17.0
    package: Unknown
    path: /home/ngicks/.local/containers/lib/podman/netavark
    version: netavark 1.17.0
  ociRuntime:
    name: crun
    package: Unknown
    path: /home/ngicks/.local/bin/override/crun
    version: |-
      crun version 1.26
      commit: 3241e671f92c33b0c003cd7de319e4f32add6231
      rundir: /run/user/1000/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +LIBKRUN +YAJL
  os: linux
  pasta:
    executable: /home/ngicks/.local/containers/bin/pasta
    package: Unknown
    version: |
      pasta 2025_12_10.d04c480
      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/user/1000/podman/podman.sock
  rootlessNetworkCmd: slirp4netns
  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: ""
    selinuxEnabled: false
  serviceIsRemote: false
  slirp4netns:
    executable: /usr/bin/slirp4netns
    package: slirp4netns_1.2.1-1build2_amd64
    version: |-
      slirp4netns version 1.2.1
      commit: 09e31e92fa3d2a1d3ca261adaeb012c8d75a8194
      libslirp: 4.7.0
      SLIRP_CONFIG_VERSION_MAX: 4
      libseccomp: 2.5.5
  swapFree: 8588087296
  swapTotal: 8589934592
  uptime: 30h 21m 52.00s (Approximately 1.25 days)
  variant: ""
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - docker.io
  - registry.fedoraproject.org
  - registry.access.redhat.com
store:
  configFile: /home/ngicks/.config/containers/storage.conf
  containerStore:
    number: 1
    paused: 0
    running: 1
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.ignore_chown_errors: "true"
    overlay.mount_program:
      Executable: /home/ngicks/.local/containers/bin/fuse-overlayfs
      Package: Unknown
      Version: |-
        fuse-overlayfs: version 1.16
        fusermount3 version: 3.14.0
        FUSE library version 3.17.4
        using FUSE kernel interface version 7.40
    overlay.mountopt: nodev,fsync=0
  graphRoot: /home/ngicks/.local/share/containers/graphroot
  graphRootAllocated: 536870912000
  graphRootUsed: 291016593408
  graphStatus:
    Backing Filesystem: btrfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Supports shifting: "true"
    Supports volatile: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 104
  runRoot: /run/user/1000/containers/storage
  transientStore: false
  volumePath: /home/ngicks/.local/share/containers/graphroot/volumes
version:
  APIVersion: 5.7.1
  Built: 0
  BuiltTime: Thu Jan  1 09:00:00 1970
  GitCommit: ""
  GoVersion: go1.25.5
  Os: linux
  OsArch: linux/amd64
  Version: 5.7.1

Podman in a container

No

Privileged Or Rootless

Rootless

Upstream Latest Release

Yes

Additional environment details

wsl.exe --version

$ wsl.exe --version
WSL バージョン: 2.6.1.0
カーネル バージョン: 6.6.87.2-1
WSLg バージョン: 1.0.66
MSRDC バージョン: 1.2.6353
Direct3D バージョン: 1.611.1-81528511
DXCore バージョン: 10.0.26100.1-240331-1435.ge-release
Windows バージョン: 10.0.26200.7623

Additional information

No response

Metadata

Metadata

Assignees

No one assigned

    Labels

    kind/bugCategorizes issue or PR as related to a bug.

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions