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+graphic: 0.820
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+PID: 0.809
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+x86: 0.805
+boot: 0.804
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+user-level: 0.718
+
+vfio-pci - Intel Arc DG2 - host errors
+Description of problem:
+The host continues to respond (slowly) after the VM is shutdown. Speeds back up to normal after about an hour. However, a reboot is required to get the host to operate normally.
+
+When shutting down the VM, the host starts to display the following messages in dmesg:
+
+[Thu Apr 13 01:30:47 2023] vfio-pci 0000:18:00.0: not ready 1023ms after FLR; waiting
+[Thu Apr 13 01:30:49 2023] vfio-pci 0000:18:00.0: not ready 2047ms after FLR; waiting
+[Thu Apr 13 01:30:52 2023] vfio-pci 0000:18:00.0: not ready 4095ms after FLR; waiting
+[Thu Apr 13 01:30:57 2023] vfio-pci 0000:18:00.0: not ready 8191ms after FLR; waiting
+[Thu Apr 13 01:31:06 2023] vfio-pci 0000:18:00.0: not ready 16383ms after FLR; waiting
+[Thu Apr 13 01:31:25 2023] vfio-pci 0000:18:00.0: not ready 32767ms after FLR; waiting
+[Thu Apr 13 01:31:59 2023] vfio-pci 0000:18:00.0: not ready 65535ms after FLR; giving up
+[Thu Apr 13 01:32:11 2023] vfio-pci 0000:18:00.0: not ready 1023ms after bus reset; waiting
+[Thu Apr 13 01:32:13 2023] vfio-pci 0000:18:00.0: not ready 2047ms after bus reset; waiting
+[Thu Apr 13 01:32:16 2023] vfio-pci 0000:18:00.0: not ready 4095ms after bus reset; waiting
+[Thu Apr 13 01:32:21 2023] vfio-pci 0000:18:00.0: not ready 8191ms after bus reset; waiting
+[Thu Apr 13 01:32:31 2023] vfio-pci 0000:18:00.0: not ready 16383ms after bus reset; waiting
+[Thu Apr 13 01:32:48 2023] vfio-pci 0000:18:00.0: not ready 32767ms after bus reset; waiting
+[Thu Apr 13 01:33:22 2023] vfio-pci 0000:18:00.0: not ready 65535ms after bus reset; giving up
+Steps to reproduce:
+1. Shutdown VM.
+Additional information:
+I have startup and shutdown scripts that detach and reattach the card and these scripts work fine if I test them alone. It's only when I shutdown the VM that issue presents itself.
+
+revert.sh
+
+```
+#!/bin/bash
+set -x
+
+systemctl reboot # to workaround host lockup on shutdown
+
+# Load the config file with our environmental variables
+source "/etc/libvirt/hooks/kvm.conf"
+source "/etc/libvirt/hooks/vmPreBootSetup"
+
+cpuSchedutil
+
+# Unload VFIO-PCI Kernel Driver
+modprobe -r vfio_pci
+modprobe -r vfio_iommu_type1
+modprobe -r vfio
+
+# Re-Bind GPU to our display drivers
+virsh nodedev-reattach $VIRSH_GPU_VIDEO
+virsh nodedev-reattach $VIRSH_GPU_AUDIO
+
+#modprobe drm_buddy intel_gtt video drm_display_helper cec ttm i915
+
+# Restart Display Manager
+systemctl restart sddm.service
+```
+
+
+
+Full dmesg log: 
+[vfio_13_april_2023.txt](/uploads/5d5b642595c53cabb3c3608c07d59eb3/vfio_13_april_2023.txt)