Gnif submitted

the patch

, which improves core parts of Linux’s PCI driver, on Wednesday. At the time of writing, kernel maintainers have not yet accepted the patch. It works by re-loading the PCI bridge configuration when the bridge resets.

Most platforms do not

need

this,

but

it appears that Threadripper is an exception

. Gnif’s code does not only apply to Threadripper, but to all PCI-supporting machines.

Alex Williamson, the maintainer of the vfio-pci kernel module and PCI Passthrough support in QEMU, said, “

Maybe

it can

be handled

via a quirk if AMD isn’t planning to release firmware that resolves this issue

?”