CONFIG_RANDOM_TRUST_CPU is unset after linux-lts is update to 5.15.50
83385b7c enables BFQ IO scheduler but also removes CONFIG_RANDOM_TRUST_CPU option. This makes my laptop (ThinkPad E595) unable to boot (the TTY got stuck while initializing services). As it is not mentioned in the commit maybe it was removed by accident.
For now I added random.trust_cpu=on
to kernel parameters so I can boot the machine. I suggest we add that option back to linux-lts
.