The combination of a new kernel built just 10 days earlier with a set of new graphics drivers sufficed to bring many Macs to their knees.
Catalina 10.15.6 update included a bonus: a large memory leak which led to kernel panics. This is the story of its patching.
When a kernel extension wants some memory, it calls for an allocation from a Mach zone. This explains how a memory leak in those zones can result in a kernel panic.
Your Mac starts up after kernel panic, and shows mystifying details about that panic. Here’s how to get the most out of that information.
What’s the difference between a crash and a panic? How can you tell what’s likely to have caused a panic?
There have been recent reports that the macOS Catalina 10.15.6 update can result in kernel panics. This appears […]
Your Mac goes all sluggish, you open Activity Monitor, and there at the top of the CPU list is kernel_task, taking 100% or more. Why?
From launch, through security checks, TCC and privacy, RunningBoard, to memory management and the Main Event Loop. A comprehensive summary.
What should you do with a Mac whose fans keeping coming on full blast, with high CPU loads from kernel_task, and sluggish performance?
It’s hot, you’re hot, and your Mac has slowed right down. Activity Monitor tells you that it’s kernel_task which is to blame. Is macOS playing up, or what?