• [$] A visualizer for BPF program state

    From LWN.net@1337:1/100 to All on Fri Dec 19 15:15:08 2025
    [$] A visualizer for BPF program state

    Date:
    Fri, 19 Dec 2025 15:08:50 +0000

    Description:
    The BPF verifier is complicated. It needs to check every possible path that a BPF program's execution could take. The fact that its determination of
    whether a
    BPF program is safe is based on the whole lifetime of the program, instead of simple local factors, means that the cause of a verification
    failure is not always obvious. Ihor Solodrai and Jordan Rome gave a presentation
    ( slides )
    at the 2025 Linux Plumbers Conference in Tokyo about
    the BPF verifier visualizer that they have been building
    to make diagnosing verification failures easier.

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    Link to news story:
    https://lwn.net/Articles/1050585/


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