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    SubjectRe: [PATCH] perf/x86: check ucode before disabling PEBS on SandyBridge
    > This will only warn about the PEBS issue once you try and use a PEBS
    > counter. Shouldn't we do this on boot? IOW. put check_pebs_quirks()

    At boot the new microcode may not be loaded yet. So you have to delay
    the check.

    -Andi


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