watching with -d9 on a NSLU2 does lead to various side-effects.
If you also (like me) do have a swap-file on an NTFS mounted drive (slow), where the songs and .db are as well (slooow), and digest the -d9 output via ssh (did I mention its slow ?) then you start to get weird, very weird log output.
This is the Heisenberg principle applied to debugging 😉