Critical Updates

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  • This page contains critical updates for Proxmox VE that requires urgent attention.
  • Maintained by volunteers.


  • cache=none or cache=directsync for KVM can lead to block device data inconsistency when underlined devices are DRBD or MD RAID
    • this is a complex issue with no fixes, only work around
    • work around: do not use cache modes which imply O_DIRECT