uhyve Unable to create VM about hermit-rs

[stlankes]

Do you use Linux? Is kvm available on your system? Please show me the output of following command RUST_LOG=debug uhyve -v target/x86_64-unknown-hermit/debug/hello_world.

[gilesbradshaw]

Hi Thanks for your help i needed reboot kubernetes/minikube#6468 (comment)

[stlankes]

@gilesbradshaw Does it work with minikube? I never tested it.

[gilesbradshaw]

ah sorry I don't know I was just reffing that as where I found suggestion to reboot :)

[jbreitbart]

@stlankes I think we should handle the error more gracefully. Understanding the panic is probably not that easy for most people. I am reopening the error as a reminder. Maybe someone finds some time to fix this.

[jbreitbart]

I'll merge hermit-os/uhyve#42, but it does not fix the issue I had in mind. In general there are two types of errors:

• A bug inside our code.
• An error on user level (e.g. no access to KVM as described here, passing invalid parameters to uhyve, ...).

In case of a bug it is great if there is a stack trace so it can be tracked down, however in case of a user error the stack trace is confusing the user and uhyve should just terminate and print the appropriate message.

[stlankes]

Do you prefer something like this?

[jbreitbart]

I am not sure. That change means we treat every error the appears within vm::create_vm as a user error, which I guess it not true and there may very well be a bug in the code. I feel like we need to distinguishboth cases, but I am not sure how to do that.