Issue with DG1 GPU Passthrough to Virtual Machine

Problem Description  
Experiencing complete system freezes during DG1 GPU passthrough attempts.  

Steps to Reproduce  
1. **Initial Configuration**  
   - Mark DG1 as "Ignore" in System Settings ()  
   - Reboot system  
   - Attempt GPU passthrough to VM  

2. **Observed Behavior**  
   - System freezes immediately after passthrough initiation  
   - No crash logs generated (complete lockup)  

3. **Temporary Workaround**  
   Applied PCI device reset method from https://forums.unraid.net/topic/188632-issue-with-passthrough-of-dg1-gpu-to-virtual-machine:  
   

echo "" | tee /sys/bus/pci/devices/0000:03:00.0/reset_method

   - VM starts successfully after this command  

4. **Remaining Issue**  
   - System freezes again when shutting down VM via web interface  
   - Requires hard reset to recover  

## Request for Assistance  
- Has anyone encountered similar DG1 passthrough/shutdown freeze behavior?  
- Are there additional configuration steps for DG1-specific reset handling?  
- Any known solutions for the shutdown-triggered freeze?  

**Unraid Version**: 7.1.0 Stable Release

Edited May 12, 20251 yr by koim