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  1. RHEL
  2. RHEL-40120

irqbalance service fails to start when user.max_user_namespaces=0

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    • rhel-9.5
    • irqbalance
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    • rhel-sst-kernel-debug
    • ssg_core_kernel
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      What were you trying to do that didn't work?

      When system is configured with user.max_user_namespaces=0 irqbalance service fails to start with the following error:

      Jun 05 14:19:35 localhost systemd[1]: Started irqbalance daemon.
      Jun 05 14:19:35 localhost systemd[683]: irqbalance.service: Failed to set up user namespacing: No space left on device
      Jun 05 14:19:35 localhost systemd[683]: irqbalance.service: Failed at step USER spawning /usr/sbin/irqbalance: No space left on device
      Jun 05 14:19:35 localhost systemd[1]: irqbalance.service: Main process exited, code=exited, status=217/USER
      Jun 05 14:19:35 localhost systemd[1]: irqbalance.service: Failed with result 'exit-code'.
      

      Please provide the package NVR for which bug is seen:

      irqbalance-1.9.4-1.el9

      How reproducible:

      deterministic

      Steps to reproduce

      # sysctl user.max_user_namespaces
      user.max_user_namespaces = 18479
      # echo user.max_user_namespaces=0 >> /etc/sysctl.conf
      # tail /etc/sysctl.conf
      ...
      user.max_user_namespaces=0
      # reboot
      # #After reboot check status of the service to see the error:
      # systemctl status irqbalance
      

      Expected results

      irqbalance service starts without errors even if user.max_user_namespaces=0 is configured.

      Actual results

      irqbalance service fails with user.max_user_namespaces=0.

              ltao@redhat.com Liu Tao
              mmarhefk@redhat.com Matus Marhefka
              Liu Tao Liu Tao
              Jiri Dluhos Jiri Dluhos
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                Created:
                Updated: