When CPUs are isolated tuned profile fails to run sysctl in RHOCP 4

Solution Verified - Updated -

Issue

  • Tuned profile is degraded because "no space left on device" while setting SMP affinity:

    tuned.plugins.plugin_scheduler: Failed to set SMP affinity of IRQ 1111 to '00000001': [Errno 28] No space left on device
    

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4
  • Isolated CPUs configured.

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