I maintain two builds of the Linux kernel, a linux/arm64 build for gokrazy, my Go appliance platform, which started out on the Raspberry Pi, and then a linux/amd64 one for router7, which runs on PCs.
The update process for both of these builds is entirely automated, meaning new Linux kernel releases are automatically tested and merged, but recently the continuous integration testing failed to automatically merge Linux 6․7 — this article is about tracking down the root cause of that failure.

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This post discusses the debugging process of a failure in the continuous integration testing of the Minimal Linux Bootloader. It explores the root cause of the issue and presents a quick mitigation.

Minimal Linux Bootloader debugging story 🐞