Missing information in /proc/cpuinfo on guest systems

Solution Verified - Updated -

Issue

  • Below CPU fields are missing in /proc/cpuinfo on few VMs hosted under same host. 
physical id     
siblings       
core id        
cpu cores  
apicid         
initial apicid

Environment

  • Red Hat Enterprise Linux 6
  • Virtual Environment
  • Kernel versions older than 2.6.32-504.el6

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