/sys/kernel/debug/ 追踪ipmi执行流程的一个脚本

#! /bin/sh




#enable tracing
echo 1 > /sys/kernel/debug/tracing/tracing_on




#add tracer to current_tracer
echo 'function' > /sys/kernel/debug/tracing/current_tracer




#add filter functions 
echo "ipmi*" > /sys/kernel/debug/tracing/set_ftrace_filter


#collect tracing log


#cat /sys/kernel/debug/tracing/trace_pipe > /tmp/ipmi_trace.log
cat /sys/kernel/debug/tracing/trace_pipe 




#disable tracing
#echo 0 > /sys/kernel/debug/tracing/tracing_on