#regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=219765 I don't see an obvious culprit between v6.12 and v6.13, suggested bisection if possible. Workaround: boot with pcie_port_pm=off Given the workaround, maybe it's worth trying a revert of this: dc421bb3c0db ("PCI: Enable runtime PM of the host bridge") ----- Forwarded message from bugzilla-daemon@xxxxxxxxxx ----- https://bugzilla.kernel.org/show_bug.cgi?id=219765 Created attachment 307599 --> https://bugzilla.kernel.org/attachment.cgi?id=307599&action=edit dmesg logs for the kernel in which gpu passthrough works After upgrading from Linux 6.12.10 to Linux 6.13.0, VFIO GPU passthrough fails for an NVIDIA GPU (AD107). The GPU is not passed through to the VM, and its audio device (01:00.1) disappears from Virt-Manager. This issue does not occur in Linux 6.12.10. I have attached the logs.