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KVM : Migrated Linux 5 Virtual Machines to OVM3 receives Warning Timer ISR/x: Time Went Backwards (Doc ID 2213734.1)

Last updated on JUNE 08, 2020

Applies to:

Oracle VM - Version 3.0.1 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Linux x86

Symptoms

All Linux 5.x virtual machine running on OVM 3.3.1 environment are receiving "Time went backwards" messages.

Dec 4 15:10:34 hostname kernel: Warning Timer ISR/2: Time went backwards: delta=-16559662 delta_cpu=35440338 shadow=271259967505275 off=150441747 processed=271260134494137 cpu_processed=271260082494137
Dec 7 15:07:31 hostname kernel: Warning Timer ISR/0: Time went backwards: delta=-70204321 delta_cpu=33795679 shadow=1401420884025 off=919647601 processed=1402408042663 cpu_processed=1402304042663

 

Changes

All the  Linux 5.x virtual machines were moved from a KVM environment to a OVM 3.3.1 environment

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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