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panic

What stops your Mac running incompatible extensions?

In one of only 3 kernel extension on your Data volume is a list of blocked kernel extensions. What protection from old and broken KEXTs does it provide?

December 21, 2020 Macs, Technology

How a kernel zone memory leak can panic macOS

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.

August 12, 2020 Macs, Technology

Reading a Panic Log in Catalina

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.

August 11, 2020 Macs, Technology

Understanding ‘crashes’ and kernel panics

What’s the difference between a crash and a panic? How can you tell what’s likely to have caused a panic?

August 10, 2020 Macs, Technology

What caused that kernel panic? How to use the log in diagnosis

T T Read More

Step through how to work out when, how and why a kernel panic occurred in the unified log, using Ulbow.

June 17, 2020 Macs, Technology

New Mac troubleshooting page

For three years, I have maintained a troubleshooting article here which provides a short summary listing of the […]

June 9, 2020 Macs, Technology

Did your Mac crash, freeze or panic?

How to tell apart unexpected quits, WindowServer crashes, kernel panics, and more – and what to do about them.

June 6, 2020 Macs, Technology

Was that a crash, freeze, panic, or spinning beachball?

Knowing the difference helps you work out what to do in response, and how to work out what went wrong.

November 30, 2019 Macs, Technology

Panics, Pegasus, and Recovery

I was replying to a tweet when the display suddenly went black. Was my iMac Pro dead, or just auto-rebooting after a kernel panic, and why?

December 3, 2018 Macs, Technology

Was that a crash, freeze, panic, or spinning beachball? A diagnostic guide

Can you tell the difference? What is the significance of each, and do you know what to do about them? An introductory guide.

April 15, 2017 Macs, Technology

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