Run kyanos on WSL failed

[maxy19]

⣟ 🦜 Kyanos Loading...

..............................
..............................
🍩 Kyanos starting... 1ns
🍎 Loaded eBPF maps & programs. 307.178028ms
🍓 Setup traffic filters 46.04µs

Press ctrl+c to exit
2024/12/12 17:31:18 kprobe2 failed: security_socket_recvmsg, creating perf_kprobe PMU (arch-specific fallback for "security_socket_recvmsg"): token __x64_security_socket_recvmsg: not found: no such file or directory, fallbacking..

内核
Linux maxy 5.15.167.4-microsoft-standard-WSL2 #1 SMP Tue Nov 5 00:21:55 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
使用权限
root
使用操作系统
win11 ，wsl2

[dosubot]

Hello @maxy19! I'm here to help you with any bugs, questions, or contributions. Let's tackle this together!

The error message indicates that the kprobe failed to attach to the security_socket_recvmsg function, and the system attempted to use an architecture-specific fallback using the perf_kprobe PMU. The specific error "token __x64_security_socket_recvmsg: not found" suggests that the fallback mechanism couldn't find the necessary token or symbol for the function on your architecture.

Here are a few things you can check or try:

1. Kernel Version and Configuration: Ensure that your kernel version supports the security_socket_recvmsg function and that it is configured to allow kprobes. Some functions may not be available or may have different names in different kernel versions.

2. Symbol Availability: Verify that the symbol __x64_security_socket_recvmsg is available in your kernel. You can check this by examining the kernel's symbol table using tools like nm or objdump.

3. Fallback Mechanism: If the fallback mechanism is not working, you might need to manually specify an alternative function or method to probe, if available.

4. Permissions: Ensure that you have the necessary permissions to attach kprobes, as this operation typically requires root privileges.

If these steps do not resolve the issue, you may need to investigate further based on your specific system configuration and kernel version.

To continue talking to Dosu, mention @dosu.

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[hengyoush]

Thanks for your feedback! What your os version, please execute uname -ar.

[maxy19]

Thanks for your feedback! What your os version, please execute uname -ar.

Linux maxy 5.15.167.4-microsoft-standard-WSL2 #1 SMP Tue Nov 5 00:21:55 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

[maxy19]

执行 ：grep CONFIG_DEBUG_INFO_BTF "/boot/config-$(uname -r)"
输出：grep: /boot/config-5.15.167.4-microsoft-standard-WSL2: No such file or directory

[hengyoush]

Currently validated to run only on Linux; WSL adaptation will be supported in further(And also windows/macos).

[maxy19]

Currently validated to run only on Linux; WSL adaptation will be supported in further(And also windows/macos).

我用的是wsl的 Ubuntu系统 24版本的 这个目前支持吗？

[hengyoush]

Currently validated to run only on Linux; WSL adaptation will be supported in further(And also windows/macos).

我用的是wsl的 Ubuntu系统 24版本的 这个目前支持吗？

In theory it is possible, but the Linux distributions on WSL do not come with Linux headers by default, which are required by kyanos.
You need to recompile the kernel, refer to some solutions like this: https://gist.github.com/MarioHewardt/5759641727aae880b29c8f715ba4d30f

@maxy19