'kernel-fixed-upstream' To answer your questions: 1- I noticed this error after i upgraded from Ubuntu 17.04 to 17.10... namely because my server did not boot properly. The reason for it not booting properly was not related to this, as i later found out.... so i cannot guarantee that this error was not present in Ubuntu 17.04. But it is worth trying to see if this error require your attention. It has to do with Ethernet interfaces dedicated to guest VMs. i will submit a different report on it.
2- i tested v4.15 per your request. i tested both -generic and -lowlatency, both were successful. However, there is one error that shows up during boot. maybe it is related to something else. [FAILED] Failed to start AppArmor initialization. See ' sudo systemctl status apparmor.service' Here is that output: ● apparmor.service - AppArmor initialization Loaded: loaded (/lib/systemd/system/apparmor.service; enabled; vendor preset: enabled) Active: failed (Result: exit-code) since Thu 2018-01-04 10:48:43 PST; 3min 45s ago Docs: man:apparmor(7) http://wiki.apparmor.net/ Process: 1198 ExecStart=/etc/init.d/apparmor start (code=exited, status=123) Main PID: 1198 (code=exited, status=123) Jan 04 10:48:43 kds-vh-srvr apparmor[1198]: AppArmor parser error for /etc/apparmor.d/usr.lib.mediascanner-2.0.mediascanner-extractor in /etc/apparmor.d Jan 04 10:48:43 kds-vh-srvr apparmor[1198]: Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox Jan 04 10:48:43 kds-vh-srvr apparmor[1198]: AppArmor parser error for /etc/apparmor.d/usr.bin.webbrowser-app in /etc/apparmor.d/usr.bin.webbrowser-app a Jan 04 10:48:43 kds-vh-srvr apparmor[1198]: AppArmor parser error for /etc/apparmor.d/usr.lib.mediascanner-2.0.mediascanner-extractor in /etc/apparmor.d Jan 04 10:48:43 kds-vh-srvr apparmor[1198]: Skipping profile in /etc/apparmor.d/disable: usr.sbin.rsyslogd Jan 04 10:48:43 kds-vh-srvr apparmor[1198]: ...fail! Jan 04 10:48:43 kds-vh-srvr systemd[1]: apparmor.service: Main process exited, code=exited, status=123/n/a Jan 04 10:48:43 kds-vh-srvr systemd[1]: Failed to start AppArmor initialization. Jan 04 10:48:43 kds-vh-srvr systemd[1]: apparmor.service: Unit entered failed state. Jan 04 10:48:43 kds-vh-srvr systemd[1]: apparmor.service: Failed with result 'exit-code'. lines 1-18/18 (END) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1740316 Title: EDAC sbridge: Failed to register device with error -19 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1740316/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs