ftrace跟踪irq_handler_entry和irq_ha
2021-03-17 本文已影响0人
小桥流水啦啦啦
echo "0" >/sys/kernel/debug/tracing/tracing_on
cat /sys/kernel/debug/tracing/current_tracer
cat /sys/kernel/debug/tracing/available_tracers
echo function > /sys/kernel/debug/tracing/current_tracer
echo "1">/sys/kernel/debug/tracing/events/irq/irq_handler_entry/enable
echo "1">/sys/kernel/debug/tracing/events/irq/irq_handler_exit/enable
echo "1" >/sys/kernel/debug/tracing/tracing_on
cat /sys/kernel/debug/tracing/trace
echo "1" >/sys/kernel/debug/tracing/tracing_on
