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    SubjectRe: [PATCH 0/2] perf: Use LBR for machine/oops debugging
    Peter Zijlstra <> writes:

    > The LBRs are relatively cheap to keep enabled and provide some history
    > to OOPSen, also some CPUs are reported to keep them over soft-reset,
    > which allows us to use them to debug things like tripple faults.
    > Therefore introduce a boot option: lbr_debug=on, which always enable
    > the LBRs and will print the LBRs on CPU init and die().

    die is too late. they will only contain the oops code then.


    -- -- Speaking for myself only.

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