I have now went back to 4.13.16 as a test and it too is exhibiting the same behaviour. I think I have chased enough kernels for now. If there is anything else you need, please let me know. Thank you for your help in this matter. It takes approximately 283 seconds before the first error message popped up on the "aacraid: Host adapter abort request".
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1777586 Title: Ubuntu Server 18.04 LTS aacraid error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1777586/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs