On Fri, 3 Apr 2020 16:29:29 +0800 Xiao Yang <yangx.jy@xxxxxxxxxxxxxx> wrote: > A lot of ftrace testcases get failure if ftrace_enabled is disabled by default > because ftrace_enabled is a big on/off switch for the whole function tracer. Why would it be disabled by default? Anyway, I'm thinking failure is the right answer if ftrace_enable is off. -- Steve