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
}