Debug Assertion Failed Zone.exe

[Uleat]

Yes, if you're not familiar with applying patches, you can manually enter the code.

Just take the lines beginning with '-' and delete them..then add the lines beginning with '+'


Essentially, you will end up with this:

void EntityList::CheckSpawnQueue()
{
	// Send the stuff if the oldest packet on the queue is older than 50ms -Quagmire
	if (tsFirstSpawnOnQueue != 0xFFFFFFFF && (Timer::GetCurrentTime() - tsFirstSpawnOnQueue) > 50) {
		LinkedListIterator<NewSpawn_Struct *> iterator(SpawnQueue);
		EQApplicationPacket *outapp = 0;

		iterator.Reset();
		NewSpawn_Struct	*ns;

		while(iterator.MoreElements()) {
			outapp = new EQApplicationPacket;
			ns = iterator.GetData();
			Mob::CreateSpawnPacket(outapp, ns);
			QueueClients(0, outapp);
			auto it = npc_list.find(ns->spawn.spawnId);
			if (it == npc_list.end()) {
				Log.Out(Logs::General, Logs::Error, "Error in EntityList::CheckSpawnQueue: Unable to find NPC for spawnId '%u'", ns->spawn.spawnId);
			}
			else {
				NPC *pnpc = it->second;
				pnpc->SendArmorAppearance();
				pnpc->SetAppearance(pnpc->GetGuardPointAnim(),false);
			}
			safe_delete(outapp);
			iterator.RemoveCurrent();
		}
		tsFirstSpawnOnQueue = 0xFFFFFFFF;
		NumSpawnsOnQueue = 0;
	}
}

Note: I replaced the '%i' with '%u' in the log message code above.


What is happening is that we're calling a deference on (npc_list::iterator<unsigned short, NPC *>)it when we say 'it->second'

For some reason, npc_list is returning npc_list::end() when we assign 'it = npc_list.find(ns->spawn.spawnId)'

And since npc_list::end() is not dereferenceable, we get an assertion failure and the 'std::_Debug_message' call.


Again, not knowing the cause of this, you may have players being attacked by unseen and/or untargetable mobs..so,
be careful and watchful when your problem zones are active.


I've been looking at this from an downcast issue (uint32 -> uint16 with loss of data.)

One of the other dev's pointed out that it might be an empty npc_list..or some other queue-based issue.

Your results will help point which direction to go with this.