Obtained 20 stack frames. /usr/games/crawl-bcadren(_Z17write_stack_traceP8_IO_FILE+0x3b) [0x56542fd3206b]: write_stack_trace(_IO_FILE*) /usr/games/crawl-bcadren(_Z20crash_signal_handleri+0x1e5) [0x56542fd32515]: crash_signal_handler(int) /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7f2fbb6d7f20]: /lib/x86_64-linux-gnu/libpthread.so.0(raise+0xc7) [0x7f2fbba9c727]: /usr/games/crawl-bcadren(+0x39165b) [0x56542fd3a65b]: /usr/games/crawl-bcadren(+0x391b68) [0x56542fd3ab68]: /usr/games/crawl-bcadren(_Z20crash_signal_handleri+0x299) [0x56542fd325c9]: crash_signal_handler(int) /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7f2fbb6d7f20]: /usr/games/crawl-bcadren(+0x418a41) [0x56542fdc1a41]: /usr/games/crawl-bcadren(+0x41e96b) [0x56542fdc796b]: /usr/games/crawl-bcadren(+0x41ece4) [0x56542fdc7ce4]: /usr/games/crawl-bcadren(_Z7builderb+0x1235) [0x56542fddd9c5]: builder(bool) /usr/games/crawl-bcadren(_Z14generate_levelRK8level_id+0xf38) [0x56542fe15bb8]: generate_level(level_id const&) /usr/games/crawl-bcadren(_Z14pregen_dungeonRK8level_id+0x545) [0x56542fe16a25]: pregen_dungeon(level_id const&) /usr/games/crawl-bcadren(_Z10load_level20dungeon_feature_type14load_mode_typeRK8level_id+0x3f8) [0x56542fe16ff8]: load_level(dungeon_feature_type, load_mode_type, level_id const&) /usr/games/crawl-bcadren(_Z12startup_stepv+0x162f) [0x56543023161f]: startup_step() /usr/games/crawl-bcadren(+0x9a8f99) [0x565430351f99]: /usr/games/crawl-bcadren(main+0x323) [0x56542fc80b73]: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f2fbb6bab97]: /usr/games/crawl-bcadren(_start+0x2a) [0x56542fc8127a]: