This issue arises whenever system-logind access the `/sys/power/disk` file. Reproduce using `cat /sys/power/disk` and you'll find
kernel: Lockdown: cat: hibernation is restricted; see man kernel_lockdown.7 in the kernel log. This is per-se harmless but does flood the log with garbage. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1896137 Title: syslog flooded with "Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7" Status in linux package in Ubuntu: Expired Bug description: When I close the lid on my laptop, syslog goes crazy with the message systemd-logind: hibernation is restricted; see man kernel_lockdown.7 repeated ad infinitum, using up all the CPU and GBs of disk space. I am not even trying to hibernate; everything in /etc/systemd/login.conf is commented out. So nothing much should happen when I close the lid, but systemd is trying to kill me with these messages. I am running Ubuntu 20.04. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896137/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp