PaperMC/Spigot-Server-Patches/0307-Add-some-Debug-to-Chunk-Entity-slices.patch
Aikar 835bc39b03
Paper 1.13.1 Update
Updated Upstream (Bukkit/CraftBukkit/Spigot)

Bukkit Changes:
2dcc44dc SPIGOT-4307: Fix hacky API for banners on shields
e0fc6572 SPIGOT-4309: Add "forced" display of particles
efeeab2f Add index to README.md for easier navigation
f502bc6f Update to Minecraft 1.13.1

CraftBukkit Changes:
d0bb0a1d Fix some tests randomly failing
997d378d Fix client stall in specific teleportation scenarios
b3dc2366 SPIGOT-4307: Fix hacky API for banners on shields
2a271162 SPIGOT-4301: Fix more invalid enchants
5d0d83bb SPIGOT-4309: Add "forced" display of particles
a6772578 Add additional tests for CraftBlockData
ce1af0c3 Update to Minecraft 1.13.1

Spigot Changes:
2440e189 Rebuild patches
4ecffced Update to Minecraft 1.13.1
2018-08-26 20:51:39 -04:00

89 lines
4 KiB
Diff

From bb0df40633fb71648d08dc23220231ef2eec19cd Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 23 Jul 2018 22:44:23 -0400
Subject: [PATCH] Add some Debug to Chunk Entity slices
If we detect unexpected state, log and try to recover
This should hopefully avoid duplicate entities ever being created
if the entity was to end up in 2 different chunk slices
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 404b7d21c2..7b6b8f4824 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -709,8 +709,34 @@ public class Chunk implements IChunkAccess {
entity.ae = this.locX;
entity.af = k;
entity.ag = this.locZ;
- this.entitySlices[k].add(entity);
+
// Paper start
+ List<Entity> entitySlice = this.entitySlices[k];
+ boolean inThis = entitySlice.contains(entity);
+ List<Entity> currentSlice = entity.entitySlice;
+ if ((currentSlice != null && currentSlice.contains(entity)) || inThis) {
+ if (currentSlice == entitySlice || inThis) {
+ LogManager.getLogger().warn(entity + " was already in this chunk section! Report this to https://github.com/PaperMC/Paper/issues/1302");
+ new Throwable().printStackTrace();
+ return;
+ } else {
+ LogManager.getLogger().warn(entity + " is still in another ChunkSection! Report this to https://github.com/PaperMC/Paper/issues/1302");
+
+ Chunk chunk = entity.getCurrentChunk();
+ if (chunk != null) {
+ if (chunk != this) {
+ LogManager.getLogger().warn(entity + " was in another chunk at that! " + chunk.locX + "," + chunk.locZ);
+ }
+ chunk.removeEntity(entity);
+ } else {
+ removeEntity(entity);
+ }
+ new Throwable().printStackTrace();
+ }
+ }
+ entity.entitySlice = entitySlice;
+ entitySlice.add(entity);
+
this.markDirty();
if (entity instanceof EntityItem) {
itemCounts[k]++;
@@ -740,9 +766,13 @@ public class Chunk implements IChunkAccess {
i = this.entitySlices.length - 1;
}
// Paper start
- if (!this.entitySlices[i].remove(entity)) {
- return;
+ if (entity.entitySlice == null || !entity.entitySlice.contains(entity) || entitySlices[i] == entity.entitySlice) {
+ entity.entitySlice = null;
+ } else {
+ LogManager.getLogger().warn(entity + " was removed from a entitySlice we did not expect. Report this to https://github.com/PaperMC/Paper/issues/1302");
+ new Throwable().printStackTrace();
}
+ if (!this.entitySlices[i].remove(entity)) { return; }
this.markDirty();
if (entity instanceof EntityItem) {
itemCounts[i]--;
@@ -979,6 +1009,7 @@ public class Chunk implements IChunkAccess {
}
// Spigot End
entity.setCurrentChunk(null); // Paper
+ entity.entitySlice = null; // Paper
// Do not pass along players, as doing so can get them stuck outside of time.
// (which for example disables inventory icon updates and prevents block breaking)
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 4a2faa314e..f5d5f38232 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -64,6 +64,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
}
};
+ List<Entity> entitySlice = null;
// Paper end
static boolean isLevelAtLeast(NBTTagCompound tag, int level) {
return tag.hasKey("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level;
--
2.18.0