Obtained 20 stack frames.
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z17write_stack_traceP8_IO_FILEi+0x23) [0x67d933]: write_stack_trace(_IO_FILE*, int)
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z20crash_signal_handleri+0x1fa) [0x67dd3a]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x36d40) [0x7f202fabad40]: 
/lib/x86_64-linux-gnu/libpthread.so.0(waitpid+0x1a) [0x7f202fe58e9a]: 
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z8call_gdbP8_IO_FILE+0x1db) [0x67e04b]: call_gdb(_IO_FILE*)
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z13do_crash_dumpv+0x35b) [0x68689b]: do_crash_dump()
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z20crash_signal_handleri+0x9c) [0x67dbdc]: crash_signal_handler(int)
/lib/x86_64-linux-gnu/libc.so.6(+0x36d40) [0x7f202fabad40]: 
/lib/x86_64-linux-gnu/libpthread.so.0(raise+0x2b) [0x7f202fe5920b]: 
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss() [0x685ff9]
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss() [0x6862b2]
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z10load_level20dungeon_feature_type14load_mode_typeRK8level_id+0xbae) [0x7446ee]: load_level(dungeon_feature_type, load_mode_type, level_id const&)
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_ZN15level_excursion5go_toERK8level_id+0x66) [0x7465e6]: level_excursion::go_to(level_id const&)
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z8show_mapR9level_posbbb+0x22a) [0xb8074a]: show_map(level_pos&, bool, bool, bool)
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(_Z15process_command12command_type+0x1648) [0xbf1168]: process_command(command_type)
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss() [0xbf3339]
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss() [0xbf4015]
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss(main+0x2ef) [0x5d96ef]: 
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7f202faa5ec5]: 
/opt/dgl-chroot/usr/lib/dcss-dcssa/bin/dcss() [0x5d9809]