Description

In pkg/unikontainers/unikontainers.go errors returned by resolveVAccelConfig() are only printed at DEBUG level. In particular the function returns the same error type in two distinct cases: 1) when vAccel is disabled and 2) when
misconfiguration occured (missing or malformed RPCAddress). Thus the error is always ignored, and the container is launched without vAccel but with no warning.

System info

• Urunc version: 0.7.0-154fc9e
• Arch: x86_64
• VMM: QEMU / Firecracker
• Unikernel: any with vAccel annotations

Steps to reproduce

1. Build an unconfined container spec with the following annotations set com.urunc.unikernel.vAccel=vsock
2. Set com.urunc.unikernel.RPCAddress to a bogus value, e.g. badaddress
3. Launch the container with urunc
4. Notice urunc starts normally with no error or warning shown, vAccel silently not configured

LLM Disclosure

N/A