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    SubjectRe: [patch 05/24] perfmon: X86 generic code (x86)
    > What about a thread doing this and another one in the middle of read the buffer?

    I assume that uses locks. Locking between threads is easy.

    > Or what about a thread trying to reset the buffer while you're processing an PMU
    > interrupt on another CPU. I know each buffer is per-CPU, but that does not
    > prevent two threads for trying to operate on it at the same time from
    > different CPUs.

    That happens per CPU.



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