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

["rwetmore@xxxxxxxxxxxx" <rwetmore@xxxxxxxxxxxx>]

It looks like the value (0,0) has been used as "not-a-coordinate" somewhere
or coordinate memory was initialized to (0,0) and used without assigning a
proper value. At some point the uninitialized coordinates flipped the bit,
and now the proper usage is failing.

This may have nothing to do with gen-topologies, but certainly that code is
less debugged and more likely to have this problem. Maybe try looking at
some recent networking or other savegame/initialization changes ...

Cheers,
RossW
=====

Jason Short wrote:
> Gregory Berkolaiko wrote:
> 
>>On Tue, 5 Aug 2003, Jason Short wrote:
> 
> 
>>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)
> 
> 
> I think (20,64) is a valid goto_dest under an iso-map.  It is possible 
> that this bug happens because it's an iso-map.  But if so, it's likely 
> the bug is in current CVS and only manifests under gen-topologies.
> 
> Nonetheless, this may make it difficult to trace.  (The version of 
> gen-topologies used is v30 from the 'patches' module of freeciv-test.)
> 
> 
>>can you print punit->goto_dest.[xy] ?
> 
> 
> (gdb) select 6
> (gdb) p *punit
> $4 = {type = 33, id = 266, owner = 5, x = 43, y = 84, veteran = true,
>    homecity = 0, moves_left = 9, hp = 10, unhappiness = 0, upkeep = 0,
>    upkeep_food = 0, upkeep_gold = 0, foul = false, fuel = 0, bribe_cost 
> = -1,
>    ai = {control = false, ai_role = AIUNIT_NONE, ferryboat = 0,
>      passenger = 268, bodyguard = -1, charge = 0}, activity = 
> ACTIVITY_IDLE,
>    goto_dest = {x = 20, y = 64}, activity_count = 0,
>    activity_target = S_NO_SPECIAL, focus_status = FOCUS_AVAIL, ord_map = 0,
>    ord_city = 0, moved = false, paradropped = false, connecting = false,
>    transported_by = -1, pgr = 0x0
> 
> jason