The Big Sur kernel_task Troubleshooting Saga

1 · Rui Carmo · June 5, 2021, 10:42 a.m.
Following last week’s post regarding my kernel_task woes (which began nearly two weeks ago now), I decided to strip out the updates from that post and consolidate them here with a little more detail. I may update this post later if I have more details on why this is happening, but for now let’s start with the whats and hows: ContextI am getting random stalls on my iMac, with kernel_task taking up anywhere between 90-250% CPU without apparent cause ever since I upgraded to Big Sur 11.4. It’s prob...