Ubuntu
linux package

  1. Bug #1860284
  2. Comment #90

Comment 90 for bug 1860284

Revision history for this message
In , bjorn (bjorn-linux-kernel-bugs) wrote :

Hi Konrad, you're not butting in at all!

Things got a little tangled up here. I think bug 214259 describes two issues:

1) Hot-added devices, e.g., an ethernet NIC in a dock, don't work. This should be helped by https://git.kernel.org/linus/d341838d776a, which appeared in v5.19, but only for the machines specifically listed in that patch.

2) I/O page faults related to IOMMU and USB. I think this one is still unresolved, and I don't think the comment #62 patch will help.

Your laptop is a rebranded Clevo. Does it match the d341838d776a list? You can tell by looking for "PCI: %s detected: not clipping E820 regions from _CRS" in your dmesg log.

If your laptop does not match the list, hot-added devices probably will not work with v6.0. If the comment #62 patch makes them work better, that information would be extremely valuable. A dmesg log from a boot with "pci=use_e820 efi=debug" would be very helpful.