> 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
argumentThis isn't because the file doesn't exist, because the udev rule checks for its existence before trying to write to it. The error is because the kernel is rejecting the write to its state file for some reason. In a really quick test, it seems like this is because it's already online; the kernel default has been CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y since at least 4.15. I think the error message is harmless, since the memory is already online, but the udev rule should be fixed to check if it's offline before actually trying to online it. Can you test with the systemd from this ppa to see if the error message is gone? https://launchpad.net/~ddstreet/+archive/ubuntu/lp1876018 Also please make sure all your memory and cpus are online after booting/hotadding. Note that I might just remove this rule entirely, since it really shouldn't be needed anymore, now that the kernel default is to online hotplugged cpus/memory, but I want to verify that first. -- 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
