# 需要导入模块: from bcc import BPF [as 别名]# 或者: from bcc.BPF importattach_kprobe[as 别名]deftest_perf_buffer_for_each_cpu(self):self.events = []classData(ct.Structure):_fields_ = [("cpu", ct.c_ulonglong)]defcb(cpu, data, size):self.assertGreater(size, ct.sizeof(Data)) ...
I'm on Ubuntu 5.15.0-100-generic built using the instructions for Ubuntu I run: /sbin/offcputime-bpfcc 3 warnings generated. cannot attach kprobe, probe entry may not exist Traceback (most recent call last): File "/sbin/offcputime-bpfcc"...
-b.attach_kprobe(event="ttwu_do_wakeup", fn_name="trace_ttwu_do_wakeup")+b.attach_kprobe(event="ttwu_do_wakeup.isra.19", fn_name="trace_ttwu_do_wakeup") Sign up for freeto join this conversation on GitHub. Already have an account?Sign in to comment...
__init__.py", line 1232, in _trace_autoload fn_name=fn.name) File "/usr/lib/python3/dist-packages/bcc/__init__.py", line 684, in attach_kprobe (fn_name, event)) Exception: Failed to attach BPF program b'kprobe__nf_nat_l4proto_unique_tuple' to kprobe b'nf_nat_l4proto_...
enviment: board: rk3588 arm64 redroid:13.0.0:run debian system debug information: root@localhost:/tmp/bcc/examples# python3 hello_world.py create_probe_event: open(/sys/kernel/tracing/kprobe_events): No such file or directory Traceback (...
[ Upstream commitdb8eae6] We currently allow to create perf link for program with expected_attach_type == BPF_TRACE_KPROBE_MULTI. This will cause crash when we call helpers like get_attach_cookie or get_func_ip in such program, because it will call the kprobe_multi's version (current-...
I use debian 10 whose kernel version is 4.19.0-5-amd64, and I use kprobe on function _copy_from_iter, which should be copy_from_iter on 4.9. Because the symbol of copy_from_iter is not exposed on 4.19, so I use _copy_from_iter instead of...
My ubuntu kernel:Linux ubuntu 5.13.0-30-generic #33~20.04.1-Ubuntu SMP Mon Feb 7 14:25:10 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux The following error occurred when I ran sudo python3 hello_world.py cannot attach kprobe, probe entry may n...