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    SubjectRe: [PATCH] tracing/fastboot: document the need of initcall_debug

    * Li Zefan <lizf@cn.fujitsu.com> wrote:

    > Ingo Molnar wrote:
    > > * Li Zefan <lizf@cn.fujitsu.com> wrote:
    > >
    > >> To use boot tracer, one should pass initcall_debug as well as
    > >> ftrace=initcall to the command line.
    > >
    > > I think both should be auto-enabled if BOOT_TRACER is enabled, for
    > > ease of use - agreed?
    >
    > If both are auto-enabled, we'll always do boot tracing. But we
    > want BOOT_TRACER to be enabled and only enable boot tracing when
    > it's needed.
    >
    > But maybe we can make ftrace=initcall implies initcall_debug=1?

    That's reasonable indeed.

    Ingo


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