TLDR Version:   Since this thread gets linked often for reference when a forum member experiences macvlan/broadcast call traces, I will provide a summary of the findings and potential solutions.   Problem - Macvlan call traces are generated in the unRAID server syslog.  Although not every call trace results in an immediate server lockup, eventually, after a few, the server will most likely lockup and become inaccessible.  The call trace will look something like this in the sy