Macbook M5 Development Kernel Panic

Hi, I'm posting a boot crash here.

Environment Hardware: Macbook M5 Pro

OS Version: macOS 26.3.1 (25D2128) and matching version of KDK from official apple download page

Kernel Version: Darwin Kernel Version 25.3.0

Reproducibility: Consistent

Here is my

--- I truncated one field "SOCDNandContainer" as the original log is too long to post, hitting the size limit.

I followed a blog post to boot the development kernel as the ReadMe file from KDK only contains instructions for Intel Macs.

https://jaitechwriteups.blogspot.com/2025/10/boot-custom-macos-kernel-on-macos-apple.html

I've tried a few 26.2 KDKs before 26.3.1 public launch, and they all showed same errors (26.1 and 26.0 KDKs don't have any development kernel for T8142 chip). Also, I own two fresh M5 Pro, and it is consistent across the machines. The highlight is

panic(cpu 8 caller 0xfffffe0050e18010): [Exclaves] $JgOSLogServerComponent.RedactedLogServer.init(logServerNotific:OSLogServerComponent\/OSLogServerComponent_Swift.swift:815: Fatal error: invalid rawValue for TightbeamComponents.RedactedLogSer at PC ...

Is this a genuine bug or am I following a wrong guide to boot the development kernel?

I don't think the blog is wrong because I'm able to boot the "release" kernel included in the KDK on the same M5 Pro, and the "development" kernel on M4 Mac Mini, using the same routine.

Just to be clear, I'm not compiling XNU myself, but am using the ones included in the kit.

Macbook M5 Development Kernel Panic
 
 
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