bpf: Failed to load program: Invalid argument

[ghost]

bpf: Failed to load program: Invalid argument

Traceback (most recent call last): File "examples/hello_world.py", line 12, in BPF(text='int kprobesys_clone(void *ctx) { bpf_trace_printk("Hello, World!\n"); return 0; }').trace_print() File "/usr/lib/python2.7/dist-packages/bcc/init.py", line 351, in init self._trace_autoload() File "/usr/lib/python2.7/dist-packages/bcc/init.py", line 1097, in _trace_autoload fn = self.load_func(func_name, BPF.KPROBE) File "/usr/lib/python2.7/dist-packages/bcc/init.py", line 391, in load_func (func_name, errstr)) Exception: Failed to load BPF program kprobesys_clone: Invalid argument

[ghost]

how to fix it ？

[chenhengqi]

What's the result of cat /proc/kallsyms | grep sys_clone ?

[vladd12]

Maybe it's happens cause you use python 2.7? @chenhengqi, what you can say about a compability with python 2.7?

[ghost]

cat /proc/kallsyms | grep sys_clone result:ffffff979b554cd0 t sys_clone

[ghost]

root@localhost:/bcc-master# execsnoop bpf: Failed to load program: Invalid argument

Traceback (most recent call last): File "/usr/share/bcc/tools/execsnoop", line 172, in b.attach_kprobe(event=execve_fnname, fn_name="syscallexecve") File "/usr/lib/python2.7/dist-packages/bcc/init__.py", line 650, in attach_kprobe fn = self.load_func(fn_name, BPF.KPROBE) File "/usr/lib/python2.7/dist-packages/bcc/init.py", line 391, in load_func (func_name, errstr)) Exception: Failed to load BPF program syscall__execve: Invalid argument all script error is this result

[ghost]

i was compile android 12 ,android and open bpf kernel tracing, and run this demo is tip this text,pls brother help me

[woodpenker]

Does your kernel compiled with CONFIG_KPROBES enable? You can check that by zcat /proc/config.gz(if /proc/config.gz exists) or grep KPROBE /boot/config-$(uname -r)