Hi, Taking the england-latest.osm.pbf from https://download.geofabrik.de/europe/great-britain.html it does fail with 0.5.4 after several minutes of processing with (not a segfault per say but still failing):
PROGRESS9: Processed 47104 nodes (8208 out) 0 ways 62282 relations 0 tiles 7:17 181 MB PROGRESS9: Processed 47104 nodes (8208 out) 0 ways 62282 relations 0 tiles 7:47 181 MB PROGRESS9: Processed 47104 nodes (8208 out) 0 ways 62282 relations 0 tiles 8:17 181 MB worker 3 exit PROGRESS9: Processed 47104 nodes (8208 out) 0 ways 62282 relations 0 tiles 8:18 181 MB PROGRESS9: Processed 47104 nodes (8208 out) 0 ways 0 relations 0 tiles 8:18 181 MB process_multipolygons:process (thread 0) process_multipolygons:finish (thread 0) maptool: /build/navit-vwCTlu/navit-0.5.4+dfsg.1/navit/maptool/itembin.c:93: item_bin_copy_attr: Assertion `attr == attr_osm_wayid' failed. You mention in the bug there that you were able to run your pbf by compiling maptool from the git repo. What compilation flags did you use? Thanks for your help, Joseph