OVM 3 Guest VM Hang with message "Clocksource tsc unstable"
(Doc ID 2241977.1)
Last updated on AUGUST 27, 2020
Applies to:Oracle VM - Version 3.3.3 and later
Oracle Cloud Infrastructure - Version N/A and later
The Guest VM hung while increasing the vCPU and the vmcore was generated.
According to vmcore log, below is the error:
installing Xen timer for CPU 5
Clocksource tsc unstable (delta = -2888770892163 ns). Enable clocksource failover by adding clocksource_failover kernel parameter.
Tried to add extra vCPU to the guest VM.
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