--- /dev/null
+diff -Nur activerecord-2.0.1.orig/lib/active_record/connection_adapters/sqlite_adapter.rb activerecord-2.0.1.sqlitethreads/lib/active_record/connection_adapters/sqlite_adapter.rb
+--- activerecord-2.0.1.orig/lib/active_record/connection_adapters/sqlite_adapter.rb 2007-11-07 20:37:16.000000000 -0700
++++ activerecord-2.0.1.sqlitethreads/lib/active_record/connection_adapters/sqlite_adapter.rb 2008-08-14 17:25:04.000000000 -0600
+@@ -72,6 +72,7 @@
+ #
+ # * <tt>:database</tt> -- Path to the database file.
+ class SQLiteAdapter < AbstractAdapter
++ @@mutex = Mutex.new
+ def adapter_name #:nodoc:
+ 'SQLite'
+ end
+@@ -129,7 +130,9 @@
+ # DATABASE STATEMENTS ======================================
+
+ def execute(sql, name = nil) #:nodoc:
+- catch_schema_changes { log(sql, name) { @connection.execute(sql) } }
++ @@mutex.synchronize do
++ catch_schema_changes { log(sql, name) { @connection.execute(sql) } }
++ end
+ end
+
+ def update_sql(sql, name = nil) #:nodoc: