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    SubjectRe: [PATCH 07/12] perf_events: add LBR software filter support for Intel X86
    (2011/10/12 16:06), Ingo Molnar wrote:
    > * Masami Hiramatsu <> wrote:
    >> (2011/10/10 23:45), Andi Kleen wrote:
    >>>> Ah, nice. Maybe we need another test binary, since current one is
    >>>> just ensuring the output of objdump and decoder is same.
    >>>> anyway it's not so difficult if it feeds random binaries to
    >>>> ensure the decoder doesn't access bad address.
    >>> Pure /dev/urandom is not good because it cannot be ever reproduced.
    >>> Better use a PRNG with random seed from urandom, but print the seed.
    >> Sure,
    > Obviously the urandom data should be kbuild generated and only
    > cleared on 'make clean' - not regenerated on every run. So if there's
    > a failure the failing urandom data stays around readily.

    I've added options for passing a combination of seed and seqno
    or instruction sequence directly. So if someone find an error
    message, they can easily reproduce it or report it.

    Thank you,

    Masami HIRAMATSU
    Software Platform Research Dept. Linux Technology Center
    Hitachi, Ltd., Yokohama Research Laboratory

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