Actually, you helped more than you think. :-) So I did a little reading about the IOMMU issue and the problem is that IOMMU itself is not the problem. It just shows the real problem (I think this is not new news, really.) Anyway, the problem appears to be the xhci_hcd device driver that I cannot disable. I still don't understand how that impacts the ethernet device driver, though.
I added the iommu=soft option to the boot menu and it seems that the kernel is more lenient in treating the xhci_hcd mis-behavior and things seem to work fine now. So I guess I'll have to make option permanent for the boot image. That means I need to do that for every kernel update. Yuck. Thanks so much. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1447053 Title: IO_PAGE_FAULT To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1447053/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
