onload AF_XDP bricks aws ec2

[lparkersc]

Environment

• OS: RHEL 9
• Kernel: 5.14.0-70
• Instance Type: m5zn.metal
• Network Driver: ENA
• Commit: f8458aa
• Branch: master (as of this writing)

Issue Description

I am attempting to install OpenOnload configured for XDP on the ENA driver. The setup process runs smoothly until I test the application, at which point my SSH connection is disrupted, and the instance becomes unresponsive.

Steps to Reproduce

1. Install all required packages.
2. Execute make.
3. Run ./onload_install --build-profile cloud as per the documentation.
4. Successfully load sfc modules with sudo onload_tool reload.
5. Attach a secondary ENA interface (name: eth1, driver: ena) to my EC2 instance.
6. Register the new ENA interface with sfc_resource: echo eth1 > /sys/module/sfc_resource/afxdp/register.
7. Disable SELinux and run my test application: onload python3 client.py [server_ip] [port].
8. Post-step 7, my SSH connection is disrupted, and I cannot reconnect to the instance.

Additional Information

I cannot post the system logs as the instance becomes unresponsive. I referenced this previous discussion where experiments with OpenOnload on ENA via XDP showed mixed results. However this post is two years out of date which is why I'm oppening a new issue.

I am relatively new to OpenOnload, so any advice on potential missteps or additional configurations would be greatly appreciated.

Thank you for any assistance you can provide.

[maxholloway]

You ever find a resolution to this @lparkersc ? I just hit the same issue ☠️