Obtained 25 stack frames.
/usr/games/crawl-git-b277f922f7(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x679d73]: write_stack_trace(_IO_FILE*, int)
/usr/games/crawl-git-b277f922f7(_Z20crash_signal_handleri+0x174) [0x67a0e4]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x321e0) [0x7fd29ec391e0]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7fd29efa1f6b]: 
/usr/games/crawl-git-b277f922f7() [0x6801d4]
/usr/games/crawl-git-b277f922f7() [0x68067f]
/usr/games/crawl-git-b277f922f7(_Z20crash_signal_handleri+0x293) [0x67a203]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x321e0) [0x7fd29ec391e0]: 
/usr/games/crawl-git-b277f922f7(_Z8utf8towcPDiPKc+0x3) [0xb487d3]: utf8towc(char32_t*, char const*)
/usr/games/crawl-git-b277f922f7(_Z13wordwrap_lineRSsibb+0x45) [0xaef8c5]: wordwrap_line(std::string&, int, bool, bool)
/usr/games/crawl-git-b277f922f7(_ZN18formatted_scroller12add_raw_textERKSsbi+0x17c) [0x8dc02c]: formatted_scroller::add_raw_text(std::string const&, bool, int)
/usr/games/crawl-git-b277f922f7(_Z17display_char_dumpv+0x4e) [0x64eede]: display_char_dump()
/usr/games/crawl-git-b277f922f7() [0x66f636]
/usr/games/crawl-git-b277f922f7(_ZN18formatted_scroller11process_keyEi+0x1e) [0x8d978e]: formatted_scroller::process_key(int)
/usr/games/crawl-git-b277f922f7(_ZN4Menu7do_menuEv+0x4d) [0x8d517d]: Menu::do_menu()
/usr/games/crawl-git-b277f922f7(_ZN4Menu4showEb+0xe5) [0x8da785]: Menu::show(bool)
/usr/games/crawl-git-b277f922f7(_ZN18formatted_scroller4showEb+0x47) [0x8da967]: formatted_scroller::show(bool)
/usr/games/crawl-git-b277f922f7(_Z17show_keyhelp_menuRKSt6vectorI16formatted_stringSaIS0_EEbbiSs+0x53a) [0x66fb7a]: show_keyhelp_menu(std::vector<formatted_string, std::allocator<formatted_string> > const&, bool, bool, int, std::string)
/usr/games/crawl-git-b277f922f7(_Z13list_commandsibSs+0x10e9) [0x6766e9]: list_commands(int, bool, std::string)
/usr/games/crawl-git-b277f922f7(_Z15process_command12command_type+0x12d3) [0xbbbe43]: process_command(command_type)
/usr/games/crawl-git-b277f922f7() [0xbbdc99]
/usr/games/crawl-git-b277f922f7() [0xbbe8a5]
/usr/games/crawl-git-b277f922f7(main+0x2eb) [0x5e756b]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7fd29ec25ead]: 
/usr/games/crawl-git-b277f922f7() [0x5e7b1d]