Re: Diagnosing virtual machine network issues

From: mike tancsa <mike_at_sentex.net>
Date: Fri, 28 Jun 2024 16:08:33 UTC
On 6/28/2024 11:53 AM, Alex Arslan wrote:
> We've noticed a number of network-related issues that only occur on the
> FreeBSD VMs and cause tests to fail. Currently we reliably see a test
> failure that expects a host resolution failure via libcurl from
> https://domain.invalid but on the FreeBSD VMs we instead get a timeout.

I would start a pcap inside and outside of the VM for all udp port 53 
traffic as a start to see if its a network issue going out of the box.  
If it happens frequently and you think it might be the network, perhaps 
try with the Intel em driver instead of the virtio network driver ?

     ---Mike