Windows stops with with HYPERVISOR_ERROR code

Environment

• Red Hat OpenShift Container Platform 4.x
• Red Hat OpenShift Virtualization 4.x
• Nested Virtualization
  • WSL2
  • Hyper-V
  • VBS / HVCI / Memory Integrity

Issue

• Microsoft Windows running on OpenShift Virtualization has rare BSODs with HYPERVISOR_ERROR code.

Resolution

• The root cause is not yet confirmed, but this may be potentially avoided by using the procedure in Windows Guest migrated from VMware to OpenShift has leftover drivers to remove the VMMemCtl driver.

Root Cause

• This is being investigated in This content is not included.RHEL-112218 - BSOD issues on Windows when WSL is used - HYPERVISOR_ERROR and may be related to a leftover VMware VMMemCtl driver still active on the Guest.

Diagnostic Steps

• In the guest console, look for HYPERVISOR_ERROR in BSOD.
• Open the crashdump with WinDbg and check the stop code

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