[BUG] Can't run router tutorial

[hansbogert]

Describe the bug

I get a eBPF error when trying to run the router tutorial [1]

To Reproduce

Steps to reproduce the behavior:

1. Go to https://polycube-network.readthedocs.io/en/latest/quickstart.html#docker and run polycubed through docker, with :latest tag
2. Go to [1]
3. Come to step 1 and run polycubectl router add r1 loglevel=INFO
4. See error

polycubectl router add r1 loglevel=DEBUG
failed to init ebpf program: Unable to initialize BPF program

Expected behavior

A clear and concise description of what you expected to happen.

Please tell us about your environment:

1. OS details: cat /etc/*-release

cat /etc/*-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION="Ubuntu 22.04 LTS"
PRETTY_NAME="Ubuntu 22.04 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

2. Kernel details: uname -a

Linux hans-desktop 5.15.0-25-generic #25-Ubuntu SMP Wed Mar 30 15:54:22 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

3. Polycube Version: polycubectl version
   Had to use docker tag :latest, as v0.9.0-rc didn't exist

polycubectl  version
polycubectl:
 version: -128-NOTFOUND+ [git: (branch/commit): NOT_FOUND/49834b6f]
polycubed:
 version: -128-NOTFOUND+ [git: (branch/commit): NOT_FOUND/49834b6f]

4. Polycube Log: Attach the log from /var/log/polycube/polycubed.log

cat /var/log/polycube/polycubed.log
[2022-06-13 12:29:04.557] [polycubed] [info] configuration parameters: 
[2022-06-13 12:29:04.557] [polycubed] [info]  loglevel: info
[2022-06-13 12:29:04.557] [polycubed] [info]  daemon: true
[2022-06-13 12:29:04.557] [polycubed] [info]  pidfile: /var/run/polycube.pid
[2022-06-13 12:29:04.557] [polycubed] [info]  port: 9000
[2022-06-13 12:29:04.557] [polycubed] [info]  addr: localhost
[2022-06-13 12:29:04.557] [polycubed] [info]  logfile: /var/log/polycube/polycubed.log
[2022-06-13 12:29:04.557] [polycubed] [info]  cubes-dump-file: /etc/polycube/cubes.yaml
[2022-06-13 12:29:04.557] [polycubed] [info]  cubes-dump-clean-init: false
[2022-06-13 12:29:04.557] [polycubed] [info]  cubes-dump-enable: false
[2022-06-13 12:29:04.557] [polycubed] [info] polycubed starting...
[2022-06-13 12:29:04.557] [polycubed] [info] version -128-NOTFOUND+ [git: (branch/commit): NOT_FOUND/49834b6f]
[2022-06-13 12:29:04.557] [polycubed] [info] running as daemon

Additional context

Add any other context about the problem here.

[1] https://polycube-network.readthedocs.io/en/latest/tutorials/tutorial2/tutorial2.html

[FedeParola]

Hi @hansbogert,
this is probably related to the version of the kernel not supported by BCC.
I just submitted a patch to bump BCC to the latest version.

[hansbogert]

Yeah probably. Because it worked fine on an ubuntu 20.04 machine.

Not able to check if this works for at least 10 day due to vacation.