Hi all
After upgrading an old Dell R610 server from Proxmox 6 to Proxmox 7, I found that PCI passthrough (I am passing only the USB controllers) doesn't work with the latest 5.15 kernel. On dmesg, the main error is "BUG: kernel NULL pointer dereference, address: 0000000000000120". I attach the full dmesg output.
The 5.13 kernel works fine.
By looking at the documentation (mainly https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0#Older_Hardware_and_New_5.15_Kernel and https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_7.2) it seems that the 5.15 kernel is known to break PCI passthrough on old hardware.
However, I didn't find the exact error I'm finding, thus I'm posting it here.
Unfortunately, the server is in production and I don't have the possibility to try the various workarounds suggested in the documentation.
Did any of you experience this same problem? If yes, how did you solve it?
After upgrading an old Dell R610 server from Proxmox 6 to Proxmox 7, I found that PCI passthrough (I am passing only the USB controllers) doesn't work with the latest 5.15 kernel. On dmesg, the main error is "BUG: kernel NULL pointer dereference, address: 0000000000000120". I attach the full dmesg output.
The 5.13 kernel works fine.
By looking at the documentation (mainly https://pve.proxmox.com/wiki/Upgrade_from_6.x_to_7.0#Older_Hardware_and_New_5.15_Kernel and https://pve.proxmox.com/wiki/Roadmap#Proxmox_VE_7.2) it seems that the 5.15 kernel is known to break PCI passthrough on old hardware.
However, I didn't find the exact error I'm finding, thus I'm posting it here.
Unfortunately, the server is in production and I don't have the possibility to try the various workarounds suggested in the documentation.
Did any of you experience this same problem? If yes, how did you solve it?