1 ftrace {
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 }
30 kernel {
31 ftrace_dump_on_oops = "orig_cpu"
32 traceoff_on_warning
33 }
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