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  1. RHEL
  2. RHEL-131187

System unbootable after enabling cpu-partitioning profile

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Undefined Undefined
    • None
    • rhel-10.1
    • tuned
    • None
    • Yes
    • Important
    • rhel-net-perf
    • None
    • False
    • False
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      What were you trying to do that didn't work?

      After setting up the cpu-isolation profile to isolate one of the CPUs on a 2-core system, after a reboot, the system didn't get up

      What is the impact of this issue to you?

      The profile is unusable

      Please provide the package NVR for which the bug is seen:

      tuned-profiles-cpu-partitioning-2.26.0-1.el10.noarch

      How reproducible is this bug?:

      Always

      Steps to reproduce

      1. dnf install -y tuned tuned-utils tuned-profiles-cpu-partitioning
      2. echo isolated_cores=1 > /etc/tuned/cpu-partitioning-variables.conf
      3. tuned-adm profile cpu-partitioning
      4. shutdown -r now

      Expected results

      System up, cores isolated as specified in the configuration file

      Actual results

      System stuck up in a loop trying to mount root file system:
      ```
      ] (1 of 2) Job dev-mapper-rhel_kvm\x2…vice/start running (3s / no limit)
      M
      [

      • ] (1 of 2) Job dev-mapper-rhel_kvm\x2…vice/start running (3s / no limit)
        M
        [

      • ] (1 of 2) Job dev-mapper-rhel_kvm\x2…vice/start running (4s / no limit)
        M
        [

      • ] (2 of 2) Job dev-disk-by\x2duuid-67…vice/start running (5s / no limit)
        M
        [

      • ] (2 of 2) Job dev-disk-by\x2duuid-67…vice/start running (5s / no limit)
        M
        [

      • ] (2 of 2) Job dev-disk-by\x2duuid-67…vice/start running (6s / no limit)
        M
        [

      • ] (1 of 2) Job dev-mapper-rhel_kvm\x2…vice/start running (6s / no limit)
        M
        [

      • ] (1 of 2) Job dev-mapper-rhel_kvm\x2…vice/start running (7s / no limit)
        M
        [

      • ] (1 of 2) Job dev-mapper-rhel_kvm\x2…vice/start running (7s / no limit)
        M
        [
        ```

              jskarvad Jaroslav Škarvada
              hkario@redhat.com Alicja Kario
              Jaroslav Škarvada Jaroslav Škarvada
              Robin Hack Robin Hack
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                Created:
                Updated: