Big problems with 7.1 locking up :-(

[Pete French]

> hi, please type:
> show lock 0xffffff0001254d20
> and then show thread 0xXXXXXXXXXXX where XXXXX is 'owner' of previous output.

http://toybox.twisted.org.uk/~pete/71_pdns_lock.png

That's in Power DNS - which is interesting because the one difference
between the boxes that lock and those which dont is that the locking
ones are serving DNS.

-pete.