tom, To pre-empt what the kernel team would ask you to do next, please try installing a newer kernel (4.16-something) and see how that performs:
http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754425 Title: Lots of pcieport and nvme kernel errors - system non-responsive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1754425/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs