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    SubjectRe: [PATCH 1/4] Add support for userspace stacktraces in tracing/iter_ctrl

    * Török Edwin <edwintorok@gmail.com> wrote:

    > Usage example:
    > mount -t debugfs nodev /sys/kernel/debug
    > cd /sys/kernel/debug/tracing
    > echo userstacktrace >iter_ctrl
    > echo sched_switch >current_tracer
    > echo 1 >tracing_enabled
    > .... run application ...
    > echo 0 >tracing_enabled
    >
    > Then read one of 'trace','latency_trace','trace_pipe'

    okay, this makes quite a bit of sense - and sysprof already kind of
    walks down into the user-space stack. (and so does oprofile, if asked)

    Could you send this independently of the lock contention tracing
    patches perhaps?

    Ingo
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