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
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https://bugs.launchpad.net/bugs/1876018
Title:
40-vm-hotadd.rules attempts to set non-existent sysfs parameters
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