Issue

Description of problem: Attempting to allocate a cpu beyond the cpu range, the tuned command fails to run. But after restarting the virtual machine cmdline takes effect Version-Release number of selected component (if applicable): tuned version: tuned-2.18.0-2.el9.noarch kernel version: 5.14.0-142.rt21.142.el9.x86_64 How reproducible: 100% Steps to Reproduce: 1. install tuned and tuned-profiles-nfv 2. isolate cpu1 and cpu2 on realtime-virtual-guest.conf lscpu -p The following is the parsable format, which can be fed to other programs. Each different item in every column has an unique ID starting usually from zero. CPU,Core,Socket,Node,,L1d,L1i,L2,L3 0,0,0,0,,0,0,0,0 1,1,1,0,,1,1,1,1 2,2,2,0,,2,2,2,2 cat /etc/tuned/realtime-virtual-guest-variables.conf isolated_cores=1,2 isolate_managed_irq=Y tuned-adm profile realtime-virtual-guest reboot 3. check isolation effect on cmdline cat /proc/cmdline cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-5.14.0-142.rt21.142.el9.x86_64 root=UUID=3f98037d-1d74-4076-a661-c4e1c651ba3e ro rhgb quiet crashkernel=1G-4G:192M,4G-64G :256M,64G-:512M resume=UUID=79143a02-217d-4970-ae71-bfceb5773fa1 console=ttyS0,115200 skew_tick=1 intel_pstate=disable nosoftlockup tsc=nowatchdog nohz=o n irqaffinity=0 skew_tick=1 isolcpus=managed_irq,domain,1,2 intel_pstate=disable nosoftlockup tsc=reliable nohz=on nohz_full=1,2 rcu_nocbs=1,2 irqaffinit y=0 default_hugepagesz=1G hugepagesz=1G hugepages=4 intel_iommu=on iommu=pt panic_on_warn=1 4. change isolated_core to "1,2,3,4,5,6,7,8" on realtime-virtual-guest-variables.conf cat /etc/tuned/realtime-virtual-guest-variables.conf isolated_cores=1,2,3,4,5,6,7,8 #isolated_cores=1,2 isolate_managed_irq=Y tuned-adm profile realtime-virtual-guest Cannot load profile(s) 'realtime-virtual-guest': Assertion 'isolated_cores contains online CPU(s)' failed. reboot 5. check cmdline as below cat /proc/cmdline BOOT_IMAGE=(hd0,msdos1)/vmlinuz-5.14.0-142.rt21.142.el9.x86_64 root=UUID=3f98037d-1d74-4076-a661-c4e1c651ba3e ro rhgb quiet crashkernel=1G-4G:192M,4G-64G :256M,64G-:512M resume=UUID=79143a02-217d-4970-ae71-bfceb5773fa1 console=ttyS0,115200 skew_tick=1 intel_pstate=disable nosoftlockup tsc=nowatchdog nohz=o n irqaffinity=0 skew_tick=1 isolcpus=managed_irq,domain,1,2,3,4,5,6,7,8 intel_pstate=disable nosoftlockup tsc=reliable nohz=on nohz_full=1,2,3,4,5,6,7,8 rcu_nocbs=1,2,3,4,5,6,7,8 irqaffinity=0 default_hugepagesz=1G hugepagesz=1G hugepages=4 intel_iommu=on iommu=pt panic_on_warn=1 tuned-adm list Available profiles: accelerator-performance - Throughput performance based tuning with disabled higher latency STOP states atomic-guest - Optimize virtual guests based on the Atomic variant atomic-host - Optimize bare metal systems running the Atomic variant balanced - General non-specialized tuned profile cpu-partitioning - Optimize for CPU partitioning default - Legacy default tuned profile desktop - Optimize for the desktop use-case desktop-powersave - Optmize for the desktop use-case with power saving enterprise-storage - Legacy profile for RHEL6, for RHEL7, please use throughput-performance profile hpc-compute - Optimize for HPC compute workloads intel-sst - Configure for Intel Speed Select Base Frequency laptop-ac-powersave - Optimize for laptop with power savings laptop-battery-powersave - Optimize laptop profile with more aggressive power saving latency-performance - Optimize for deterministic performance at the cost of increased power consumption mssql - Optimize for Microsoft SQL Server network-latency - Optimize for deterministic performance at the cost of increased power consumption, focused on low latency network perform ance network-throughput - Optimize for streaming network throughput, generally only necessary on older CPUs or 40G+ networks openshift - Optimize systems running OpenShift (parent profile) openshift-control-plane - Optimize systems running OpenShift control plane openshift-node - Optimize systems running OpenShift nodes optimize-serial-console - Optimize for serial console use. oracle - Optimize for Oracle RDBMS postgresql - Optimize for PostgreSQL server powersave - Optimize for low power consumption realtime - Optimize for realtime workloads realtime-virtual-guest - Optimize for realtime workloads running within a KVM guest realtime-virtual-host - Optimize for KVM guests running realtime workloads sap-hana - Optimize for SAP HANA sap-netweaver - Optimize for SAP NetWeaver server-powersave - Optimize for server power savings spectrumscale-ece - Optimized for Spectrum Scale Erasure Code Edition Servers spindown-disk - Optimize for power saving by spinning-down rotational disks throughput-performance - Broadly applicable tuning that provides excellent performance across a variety of common server workloads virtual-guest - Optimize for running inside a virtual guest virtual-host - Optimize for running KVM guests No current active profile. Actual results: on step5, after guest reboot. Wrong cpu allocations appear in cmdline even though tuned profile is not running Expected results: if run "tuned-adm profile realtime-virtual-guest" failed, cmdline won't be changed. Additional info:

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