On 06/04/11 08:38, Alexander Clouter wrote: > W.C.A. Wijngaards<wouter at nlnetlabs.nl> wrote: >> >> So, it is somehow unique to that machine. Can you see in 'top' what >> unbound is doing? (is it using cpu, 100% in a busy loop?, it is not >> responding to unbound-control, so it must be completely hosed somehow) >> > ...the sysadmin in me usually reaches for 'strace' at this point for > clues. +1 Depending on your OS, dtrace/SystemTap can be useful too.