TextSymbolizer displacement (dx,dy) values are doubles (source:trunk/src/text_symbolizer.cpp#L70), but load_map assumes they are integers and bails during parsing:
// --> Failed to parse attribute 'dy'. Expected type integer but got '6.5' in TextSymbolizer in style 'Osm_au_line_labels'
[springmeyer] cc'ed migurski as this might have prevented subtle usage in the cascadenik pre-xmlbad code
[springmeyer] fixed in r1165