407. [bug] isc_rwlock_lock() would needlessly block

                        readers when reaching the read quota even
                        if no writers were waiting.
(fixed incorrectly in rwlock.c 1.18, corrected in 1.23)

CHANGES

 
+ 407.	[bug]		isc_rwlock_lock() would needlessly block
+			readers when reaching the read quota even
+			if no writers were waiting.
+
  406.	[bug]		Log messages were occasionally lost or corrupted
 			due to a race condition in isc_log_doit().