Alyssa Ross <hi@alyssa.is> writes:
Alyssa Ross <hi@alyssa.is> writes:
Since we introduced the userspace router, if I start the Firefox VM, quit Firefox, wait for the VM to shut down, and then start it again, networking no longer works, and I see repeating log lines like this:
2025-12-09 09:13:29.147240893 [2025-12-09T09:13:29Z WARN spectrum_router::router] interface App(0) has been blocked for 1 sec, dropping packet
Ah, and there's also this just as the first Firefox VM exits:
2025-12-09 09:51:17.380783524 [2025-12-09T09:51:17Z ERROR virtio_queue::queue] Iterator error trying to process requests on a queue that's not ready 2025-12-09 09:51:17.380846889 [2025-12-09T09:51:17Z ERROR virtio_queue::queue] Iterator error trying to process requests on a queue that's not ready
And repeated stuff like this from the guest kernel: [ 402.381203] virtio_net virtio2 eth1: NETDEV WATCHDOG: CPU: 0: transmit queue 0 timed out 5792 ms [ 402.382150] virtio_net virtio2 eth1: TX timeout on queue: 0, sq: output.0, vq: 0x1, name: output.0, 5792000 usecs ago
Full reproduction steps:
1. cd host/rootfs 2. nix-shell --run 'make clean && make run' 3. Start Firefox VM with vm-start 4. See that networking works 5. Quit Firefox and wait a few seconds for VM to stop 6. Start Firefox VM with vm-start again 7. No more networking, and log lines like the above