tools/testing/ktest/examples/bootconfigs/tracing.bconf


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

ftrace {
	tracer = function_graph;
	options = event-fork, sym-addr, stacktrace;
	buffer_size = 1M;
	alloc_snapshot;
	trace_clock = global;
	events = "task:task_newtask", "initcall:*";
	event.sched.sched_process_exec {
		filter = "pid < 128";
	}
	instance.bar {
		event.kprobes {
			myevent {
				probes = "vfs_read $arg2 $arg3";
			}
			myevent2 {
				probes = "vfs_write $arg2 +0($arg2):ustring $arg3";
			}
			myevent3 {
				probes = "initrd_load";
			}
			enable
		}
	}
	instance.foo {
		tracer = function;
		tracing_on = false;
	};
}
kernel {
	ftrace_dump_on_oops = "orig_cpu"
	traceoff_on_warning
}