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    SubjectRe: BFS vs. mainline scheduler benchmarks and measurements

    * Jens Axboe <jens.axboe@oracle.com> wrote:

    > I went to try -tip btw, but it crashes on boot. Here's the
    > backtrace, typed manually, it's crashing in
    > queue_work_on+0x28/0x60.
    >
    > Call Trace:
    > queue_work
    > schedule_work
    > clocksource_mark_unstable
    > mark_tsc_unstable
    > check_tsc_sync_source
    > native_cpu_up
    > relay_hotcpu_callback
    > do_forK_idle
    > _cpu_up
    > cpu_up
    > kernel_init
    > kernel_thread_helper

    hm, that looks like an old bug i fixed days ago via:

    00a3273: Revert "x86: Make tsc=reliable override boot time stability checks"

    Have you tested tip:master - do you still know which sha1?

    Ingo


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