- Shutdown takes forever: “A stop job is running for Cryptography Setup for cryptoswap1” takes over 5 minutes
- systemd-udev cause high cpu: https://bugs.launchpad.net/ubuntu/+source/udev/+bug/1767968?comments=all
- Boot hangs 1 minute with “gave up waiting for suspend/resume device”, there seems to be a wrong uuid for resume in initramfs. Temporarily solution is here: https://askubuntu.com/questions/1013830/slow-boot-long-kernel-load-time-due-to-wrong-resume-device