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Bug
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Resolution: Not a Bug
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Normal
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None
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4.12.z
Description of problem:
Attempting to enable a realtime-virtual-guest TuneD profile on VMware, or any profile that uses the realtime kernel, results in an error trying set the nmi_watchdog=0 and the profile fails to install.
Version-Release number of selected component (if applicable):
tested on OCP 4.10.31 and 4.12.2
How reproducible
Always
Steps to Reproduce:
1. On a fresh install of OCP of on VMware
2. Create a file rt-v-guest.yaml
apiVersion: tuned.openshift.io/v1 kind: Tuned metadata: name: rt-v-guest namespace: openshift-cluster-node-tuning-operator spec: recommend: - profile: realtime-virtual-guest match: - label: node-role.kubernetes.io/worker priority: 20
3. Apply with
oc create -f rt-v-guest.yaml
Actual results:
After applying the tuned profile, the TuneD pod log for a worker node:
oc logs tuned-hsxhb -n openshift-cluster-node-tuning-operator 2023-02-14 16:46:54,014 INFO tuned.daemon.daemon: starting tuning 2023-02-14 16:46:54,016 INFO tuned.plugins.base: instance cpu: assigning devices cpu2, cpu1, cpu0, cpu3 2023-02-14 16:46:54,017 INFO tuned.plugins.plugin_cpu: We are running on an x86 GenuineIntel platform 2023-02-14 16:46:54,020 WARNING tuned.plugins.plugin_cpu: your CPU doesn't support MSR_IA32_ENERGY_PERF_BIAS, ignoring CPU energy performance bias 2023-02-14 16:46:54,022 INFO tuned.plugins.plugin_bootloader: cannot read '/etc/default/grub' 2023-02-14 16:46:54,026 INFO tuned.plugins.base: instance net: assigning devices ens192 2023-02-14 16:46:54,026 INFO tuned.plugins.plugin_rtentsk: opened SOF_TIMESTAMPING_OPT_TX_SWHW socket 2023-02-14 16:46:54,028 INFO tuned.plugins.plugin_cpu: setting new cpu latency 3 2023-02-14 16:46:54,029 ERROR tuned.plugins.plugin_sysctl: Failed to set sysctl parameter 'kernel.nmi_watchdog' to '0': [Errno 524] Unknown error 524 2023-02-14 16:46:54,029 INFO tuned.plugins.plugin_sysctl: reapplying system sysctl 2023-02-14 16:46:54,308 INFO tuned.plugins.plugin_bootloader: installing additional boot command line parameters to grub2 2023-02-14 16:46:54,309 INFO tuned.plugins.plugin_bootloader: cannot find grub.cfg to patch E0214 16:46:54.309755 4183 controller.go:854] unable to sync(daemon/) requeued (4) E0214 16:46:54.309913 4183 controller.go:854] unable to sync(daemon/) requeued (5)
Expected results:
Profile is applied and guest restarts with the realtime kernel
Additional info:
The goal is to be able to isolate CPUs. Is this properly supported on VMware?
