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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 enable23 }24 }25 instance.foo {26 tracer = function;27 tracing_on = false;28 };29}30kernel {31 ftrace_dump_on_oops = "orig_cpu"32 traceoff_on_warning33}34