(gdb) run battleg
Starting program: C:\mame/mame.exe battleg

Program received signal SIGSEGV, Segmentation fault.
0x01360331 in pool_clear (pool=0x40aa9f0) at src/lib/util/pool.c:98
98                      next_entry = entry->next;
(gdb) bt full
#0  0x01360331 in pool_clear (pool=0x40aa9f0) at src/lib/util/pool.c:98
        next_entry = (pool_entry *) 0xa4
        entry = (pool_entry *) 0xa4
#1  0x0136036f in pool_free (pool=0x40aa9f0) at src/lib/util/pool.c:115
No locals.
#2  0x00ef9c5a in end_resource_tracking () at src/emu/restrack.c:208
        cb = (callback_item *) 0x0
#3  0x00ef9b85 in exit_resource_tracking () at src/emu/restrack.c:152
No locals.
#4  0x00e8e493 in run_game (game=1858) at src/emu/mame.c:372
        machine = (running_machine *) 0x3f90078
        error = 0
        firstrun = 0
        mame = (mame_private *) 0x3f9030c
        cb = (callback_item *) 0x0
#5  0x00e49a08 in utf8_main (argc=2, argv=0x40a04c0)
    at src/osd/windows/winmain.c:194
        result = 0
        caps = {wPeriodMin = 1, wPeriodMax = 65535}
        game_index = 1858
        ext = 0x26830e4 ".map"
        res = 0
#6  0x01391ce1 in main (argc=2, a_argv=0x40a0450) at src/osd/windows/main.c:67
        i = 2
        rc = 64421368
        utf8_argv = (char **) 0x40a04c0
        argv = (TCHAR **) 0x40a0450