Public bug reported: In focal, udev's 40-vm-hotadd.rules (from debian/extra/rules-ubuntu) tries to write to invalid (as of 5.4.0-1010-azure) sysfs nodes resulting in warnings such as:
Apr 29 22:36:46 focal01 systemd-udevd[266]: memory7: /usr/lib/udev/rules.d/40-vm-hotadd.rules:9 Failed to write ATTR{/sys/devices/system/memory/memory7/state}, ignoring: Invalid argument Perhaps 40-vm-hotadd.rules needs to be updated for 5.4 semantics, removed, or something else. This behavior is present on systems upgraded from 18.04 (via d-r-u) as well as new focal systems, upon first reboot of the VM. udev: 245.4-4ubuntu3 ** Affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1876018 Title: 40-vm-hotadd.rules attempts to set non-existent sysfs parameters To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1876018/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs