[Freeciv-Dev] Re: (PR#4757) server_crash: pending_seen is off

["Gregory Berkolaiko" <Gregory.Berkolaiko@xxxxxxxxxxxx>]

On Tue, 5 Aug 2003, Jason Short wrote:

> 
> While playing a game with gen-topologies and PR#4683 patches:
> 
> civserver: maphand.c:450: decrement_pending_seen: Assertion 
> `plr_tile->pending_seen != 0' failed.
> 
> #4  0x08080207 in decrement_pending_seen (pplayer=0x0, x=0, y=0)
>      at maphand.c:452
> #5  0x08080bc9 in fog_area (pplayer=0x81811b0, x=43, y=84, len=1)
>      at maphand.c:597
> #6  0x080632d4 in move_unit (punit=0x832c5a0, dest_x=42, dest_y=85,
>      transport_units=true, take_from_land=true, move_cost=3) at 
> unittools.c:2896
> #7  0x0805a023 in handle_unit_move_request (punit=0x832c5a0, dest_x=42,
>      dest_y=85, igzoc=false, move_diplomat_city=false) at unithand.c:1099
> #8  0x08058eb5 in handle_move_unit (pplayer=0x0, pmove=0xbffff870)
>      at unithand.c:661
> #9  0x080d68f2 in ai_unit_move (punit=0x832c5a0, x=42, y=85) at 
> aitools.c:358
> #10 0x0807843d in do_unit_goto (punit=0x832c5a0, restriction=GOTO_MOVE_ANY,
>      trigger_special_ability=false) at gotohand.c:1353
> #11 0x080d5e00 in ai_unit_goto (punit=0x832c5a0, x=20, y=64) at 
> aitools.c:128
> #12 0x080d5c49 in ai_unit_gothere (punit=0x832c5a0) at aitools.c:99
> #13 0x080ddd6c in ai_manage_ferryboat (pplayer=0x81811b0, punit=0x832c5a0)
>      at aiunit.c:2664
> #14 0x080dee5e in ai_manage_units (pplayer=0x81811b0) at aiunit.c:2898
> #15 0x0804e4d9 in ai_start_turn () at srv_main.c:436
> #16 0x0804fe17 in main_loop () at srv_main.c:1445
> #17 0x080502f5 in srv_main () at srv_main.c:1591
> #18 0x0804a008 in main (argc=135320704, argv=0xbffffad4) at civserver.c:154
> #19 0x401a34ed in __libc_start_main () from /lib/libc.so.6
> 
> It should be noted that (0,0) is not a normal map position, and so would 
> have triggered the assert in map_get_player_tile (DEBUG was enabled). 

An assert should have been triggered earlier just before call to 
  ai_unit_gothere (punit=0x832c5a0) at aitools.c:99
since the goto_dest was set to something strange, (20,64)

can you print punit->goto_dest.[xy] ?

> So presumably the pplayer==NULL parameter is also not correct.
> 
> (gdb) p map.xsize
> $7 = 80
> (gdb) p map.ysize
> $8 = 50
> (gdb) p map.topology_id
> $9 = 7
> 
> Not reproducable.
> 
> jason
> 
> 
> 
>