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    trace: add a way to enable or disable the stack tracer · f38f1d2a
    Steven Rostedt authored
    
    
    Impact: enhancement to stack tracer
    
    The stack tracer currently is either on when configured in or
    off when it is not. It can not be disabled when it is configured on.
    (besides disabling the function tracer that it uses)
    
    This patch adds a way to enable or disable the stack tracer at
    run time. It defaults off on bootup, but a kernel parameter 'stacktrace'
    has been added to enable it on bootup.
    
    A new sysctl has been added "kernel.stack_tracer_enabled" to let
    the user enable or disable the stack tracer at run time.
    
    Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    f38f1d2a