support for qemu？

[JocelynPanPan]

Does the project currently support interconnection of multiple qemu virtual machines? I installed exo in Qemu of multiple architectures, but they can't find each other.

[Nurb4000]

Sounds like a network issue to me. I did some early testing using KVM, which is similar. While i had other issues networking was not one of them. ( many reported by others around here so i didn't, and holding off on more testing until things stabilize more )

[JocelynPanPan]

Thank you for your reply, the network should be a reason. My main purpose is to test whether servers with different architectures can be interconnected, so I tested it on ARM and x86 servers in the same network segment, and they were also unable to recognize each other.

[Nurb4000]

Unless i got things confused ( doing a lot of testing that week ) during one of my tests i was able to add a JetsonNX device ( ARM based ) to a couple of x86 VMs ( on a proxmox server ) and they saw each other. Had other issues, but networking wasn't one of them.

[JocelynPanPan]

According to your tests, devices with different architectures should be able to recognize each other. Have you made any changes to this? I don't know how to solve this problem now.

[Nurb4000]

I made no changes, but it was not 'todays version' since it was a couple of weeks ago. If i get a chance this weekend ill spin up a couple of VMs and dig out an ARM box out of the closet and try most current and see if they at least talk to each other still.

While this project has great promise in the long run, I stopped my testing as there were enough other issues going on i figured i wait a bit. Honestly don't have time these days to be on bleeding edge of stuff and contribute back bug reports. Too busy at the office with a new project for me to be useful.

[JocelynPanPan]

Got it, thank you! At least now I know that devices from different architectures can recognize one another.
I will try to solve it next.

[Nurb4000]

Well i had a few mins so thought id try it, but i had forgot about it trying to install MLX on non apple ARM ( which fails to install since its not an apple device ). I forget the work around, but if i have time later ill go try to dig that up.

EDIT: seems others are having this same issue with MLX, i thought is saw it before and worked around it, perhaps im dreaming. Once i see a workaround and i get a few spare minutes ill get my laptop ( ya, its arm, im a weirdo ) hooked up and see if it still talks to x86. ( tearing apart my jetson isn't practical right now due to time )

[JocelynPanPan]

OK, looking forward to your results.

[Nurb4000]

They fixed the MLX issue today and got it running on my laptop, a RK3588. Also started up 2 x86 VMs, using KVM ( via PVE server ). All on the same physical subnet.

Networking worked right out of the box. Cant say about 'use' as none of these would be worthy of even trying that. But they did find each other and connected fine.

I suspect its due to your VMs behind behind NAT or something. When i used QEMU on my desktop for the occasional testing VM ( not related to exo ), it was a lot of overhead to get past that and i never did.

[JocelynPanPan]

OK, thank you very much for the test results. It seems that I still need to spend some time on the network configuration of the Qemu virtual machine.