My CPU usage suddenly started to spike to 100% usage on a single thread, persisting through reboots.
I've narrowed it down to kworker_kacpid process, which I gathered from other sources is a Kernel worker process.
I executed the following commands:
perf record -g -a sleep 10
And I get the following:
Does anyone know what is causing this? I've tried uninstalling GPU drivers since they always cause problems, and even downgraded to an earlier kernel, nothing worked.