Windows crash does not generate memory dump when using virtio graphics

Environment

• Red Hat Enterprise Linux 9, 10
• Microsoft Windows Guest
• Virtio Graphics

Issue

• Windows unable to generate memory dump when crashing, even if 'Complete Memory Dump' is configured.

Resolution

• The fix is in the Virtio drivers which are installed inside the Guest OS. Please update the "Red Hat VirtIO GPU DOD controller" with the driver contained in virtio-win-1.9.57-0 or later.
• As a workaround to capture the memory dump, switch the VM video device to vga.

Root Cause

• This was a bug, tracked in Content from redhat.atlassian.net is not included.RHEL-152087 - BSOD screen doesn't show up with VirtIO VGA and dump fails on Win10 x86.
• It was fixed by RHBA-2026:9301 (RHEL 9.6) and RHBA-2026:6818 (RHEL 10.1).

Diagnostic Steps

• A QMP event with GUEST_PANICKED followed by a shutdown is generated, instead of the expected GUEST_CRASHLOADED.

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