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kernel extension

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

Extensions, Big Sur and M1 Macs

How to use kernel extensions, and their replacement system extensions, on Macs running Big Sur, including M1 Macs.

December 15, 2020 Macs, Technology

Should you upgrade to Big Sur early, or wait?

It’s got to be better than Catalina, so why not upgrade when it first comes out? Here are some suggestions to help you make your decision.

September 17, 2020 Macs, Technology

The life cycle of a kernel panic

Catalina 10.15.6 update included a bonus: a large memory leak which led to kernel panics. This is the story of its patching.

August 14, 2020 Macs, Technology

What has changed in the macOS 10.15.6 Supplemental Update?

macOS Catalina 10.15.6 Supplemental Update is promised to address two problems: some Macs running Virtual Machines under VMWare […]

August 13, 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

Catalina 10.15.6 is prone to kernel panics from a memory leak

There have been recent reports that the macOS Catalina 10.15.6 update can result in kernel panics. This appears […]

August 6, 2020 Macs, Technology

Big Sur’s Signed System Volume: added security protection

From SIP to a protected read-only System volume, macOS 11 takes system protection a big step further with cryptographic verification.

June 25, 2020 Macs, Technology

When you can’t run an app because its extension(s) won’t load

Many vital apps rely on installing kernel extensions, which may be tricky or seem impossible in Catalina. Here are some strategies to solve problems.

February 10, 2020 Macs, Technology

Why Catalina may have problems with extensions

Why third-party kernel extensions may have problems working in Catalina, and whether those KEXTs will become SEXTs.

October 21, 2019 Macs, Technology

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