Vmware Hostlarda aşağıdaki hayatı alırsanız; Uzun yol aşağıdaki linkten çözümü uzun uzun okursunuz;
XXX esx.problem.hyperthreading.unmitigated.formatOnHost not found XXX

ve ya

Enable ESXi Side-Channel-Aware Scheduler setting using ESXCLI

  1. SSH to an ESXi host or open a console where the remote ESXCLI is installed. For more information, see the http://www.vmware.com/support/developer/vcli/.
  2. Check the current runtime value of the HTAware Mitigation Setting by running

# esxcli system settings kernel list -o hyperthreadingMitigation

This should return similar to:
User-added image
  1. To enable HT Aware Mitigation, run this command:

# esxcli system settings kernel set -s hyperthreadingMitigation -v TRUE

  1. Reboot the ESXi host for the configuration change to go into effect.Enable ESXi Side-Channel-Aware Scheduler setting using ESXCLI
    1. SSH to an ESXi host or open a console where the remote ESXCLI is installed. For more information, see the http://www.vmware.com/support/developer/vcli/.
    2. Check the current runtime value of the HTAware Mitigation Setting by running esxcli system settings kernel list -o hyperthreadingMitigation
    This should return similar to:
    User-added image
    1. To enable HT Aware Mitigation, run this command:
    esxcli system settings kernel set -s hyperthreadingMitigation -v TRUE
    1. Reboot the ESXi host for the configuration change to go into effect.

 
Ayrıca;

ESXI üzerinde iken Configuration > Advanced Settings (Software) > UserVars > UserVars.SuppressHyperthreadWarning = 1 hale getirmeniz Hyper Thread uyarıları disable edecektir.