tight loop in tdb_find()

[tridge at samba.org]

Hi Jim,

 > Yep, after a power failure.  And we've got similar checks in the
 > traverse code, as someone else found it this way, too.

What database was it? 

If it's a database where we use transactions then either there is a
bug in our transaction code, or there is a code path where we do a
write without being inside a transaction.

Or perhaps this was an older version of Samba that didn't use
transactions on that database?

Cheers, Tridge