1ftrace { 2 tracer = function_graph; 3 options = event-fork, sym-addr, stacktrace; 4 buffer_size = 1M; 5 alloc_snapshot; 6 trace_clock = global; 7 events = "task:task_newtask", "initcall:*"; 8 event.sched.sched_process_exec { 9 filter = "pid < 128"; 10 } 11 instance.bar { 12 event.kprobes { 13 myevent { 14 probes = "vfs_read $arg2 $arg3"; 15 } 16 myevent2 { 17 probes = "vfs_write $arg2 +0($arg2):ustring $arg3"; 18 } 19 myevent3 { 20 probes = "initrd_load"; 21 } 22 enable 23 } 24 } 25 instance.foo { 26 tracer = function; 27 tracing_on = false; 28 }; 29} 30kernel { 31 ftrace_dump_on_oops = "orig_cpu" 32 traceoff_on_warning 33} 34