[$] BPF, continuous testing, and stable kernels
Ihor Solodrai and Shung-Hsi Yu wrapped up the BPF track at the 2026 Linux Storage, Filesystem, Memory-Management, and BPF Summit with a pair of sessions related to testing. Solodrai spoke about what has changed for BPF's continuous-integration (CI) testing. Yu spoke about what may be needed to test BPF updates in stable kernels more thoroughly. The BPF subsystem's CI tests are in a good place,…
At the 2026 Linux Storage, Filesystem, Memory-Management, and BPF Summit, IHor Solodrai and Shung-Hsi Yu delivered sessions on testing BPF and stable kernels. Solodrai discussed recent improvements to the BPF-CI infrastructure, including the use of LLM-powered reviews and expanded test coverage in user-space. Yu highlighted the need for more thorough testing of BPF updates in stable kernels, as the current AUTSEL patch-selection tool does not run BPF self-tests.
They both agreed that having multiple independent reviews would be beneficial for catching subtle issues.
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