Version mkgmap-r3264 was committed by gerd on Fri, 09 May 2014 apply rc-and-logging-v2.patch : set return code 1 if map creation failed It also changes the handling of so called MapFailedExceptions like "There is not enough room in a single garmin map..." or "Overflow of the NET1. The tile ..." These messages are now printed as severe messages via the logging system (showing the input file): Severe (MapFailedException): \ld_sp\63240003.o5m: (thrown in BufferedImgFileWriter.ensureSize()) There is not enough room in a single garmin map for all the input data. The .osm file should be split into smaller pieces first. The stdout contains two new messages: Number of MapFailedExceptions: 3 Number of ExitExceptions: 0 If any of the two shows a non-zero value, the program exits with return code 1.