Paper/patches/server/0236-Add-Debug-Entities-option-to-debug-dupe-uuid-issues.patch
Spottedleaf 8ce5219e07 Fix inconsistent chunk sending with vanilla
Vanilla now loads the proper number of chunks for sending
to players. So, we can finally match their behavior after
all these years.
2023-06-08 17:45:54 -07:00

130 lines
7.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 21 Jul 2018 08:25:40 -0400
Subject: [PATCH] Add Debug Entities option to debug dupe uuid issues
Add -Ddebug.entities=true to your JVM flags to gain more information
1.17: Needs to be reworked for new entity storage system
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 8dc2a217d018e0a11fb852cf46d4e9b5290ea6a0..af92411006c3d281815b3f4c3de5f0280d3a5901 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -897,6 +897,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
} else {
ChunkMap.TrackedEntity playerchunkmap_entitytracker = new ChunkMap.TrackedEntity(entity, i, j, entitytypes.trackDeltas());
+ entity.tracker = playerchunkmap_entitytracker; // Paper - Fast access to tracker
this.entityMap.put(entity.getId(), playerchunkmap_entitytracker);
playerchunkmap_entitytracker.updatePlayers(this.level.players());
if (entity instanceof ServerPlayer) {
@@ -939,7 +940,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
if (playerchunkmap_entitytracker1 != null) {
playerchunkmap_entitytracker1.broadcastRemoved();
}
-
+ entity.tracker = null; // Paper - We're no longer tracked
}
protected void tick() {
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 33ce550ea68d4862e0966ed827200cf426909d85..6b157b362cffedae26133fc0f0af1094655ee11f 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -221,6 +221,9 @@ public class ServerLevel extends Level implements WorldGenLevel {
public final LevelStorageSource.LevelStorageAccess convertable;
public final UUID uuid;
public boolean hasPhysicsEvent = true; // Paper
+ public static Throwable getAddToWorldStackTrace(Entity entity) {
+ return new Throwable(entity + " Added to world at " + new java.util.Date());
+ }
@Override public LevelChunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
return this.chunkSource.getChunk(x, z, false);
@@ -1411,7 +1414,28 @@ public class ServerLevel extends Level implements WorldGenLevel {
// CraftBukkit start
private boolean addEntity(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) {
org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot
+ // Paper start
+ if (entity.valid) {
+ MinecraftServer.LOGGER.error("Attempted Double World add on " + entity, new Throwable());
+
+ if (DEBUG_ENTITIES) {
+ Throwable thr = entity.addedToWorldStack;
+ if (thr == null) {
+ MinecraftServer.LOGGER.error("Double add entity has no add stacktrace");
+ } else {
+ MinecraftServer.LOGGER.error("Double add stacktrace: ", thr);
+ }
+ }
+ return true;
+ }
+ // Paper end
if (entity.isRemoved()) {
+ // Paper start
+ if (DEBUG_ENTITIES) {
+ new Throwable("Tried to add entity " + entity + " but it was marked as removed already").printStackTrace(); // CraftBukkit
+ getAddToWorldStackTrace(entity).printStackTrace();
+ }
+ // Paper end
// WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getKey(entity.getType())); // CraftBukkit
return false;
} else {
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 231a2644f7150abebcbbe7464a24cccdf1fcd561..caeaa3907c1455726a0eeda7e473aacd9f8c3937 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -238,6 +238,8 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
private CraftEntity bukkitEntity;
+ public @org.jetbrains.annotations.Nullable net.minecraft.server.level.ChunkMap.TrackedEntity tracker; // Paper
+ public @Nullable Throwable addedToWorldStack; // Paper - entity debug
public CraftEntity getBukkitEntity() {
if (this.bukkitEntity == null) {
this.bukkitEntity = CraftEntity.getEntity(this.level.getCraftServer(), this);
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 8a53284a5846b25864352e18a5e6b2deb8d3e3ed..75df40ab76f9813cf08682f06fd3ae499c70b4ba 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -150,6 +150,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
public boolean pvpMode;
public boolean keepSpawnInMemory = true;
public org.bukkit.generator.ChunkGenerator generator;
+ public static final boolean DEBUG_ENTITIES = Boolean.getBoolean("debug.entities"); // Paper
public boolean preventPoiUpdated = false; // CraftBukkit - SPIGOT-5710
public boolean captureBlockStates = false;
diff --git a/src/main/java/net/minecraft/world/level/entity/EntityLookup.java b/src/main/java/net/minecraft/world/level/entity/EntityLookup.java
index 21a2800db22f287b9c6a8290326fdf3b94ae94b1..d45d832232be5017dde53816191c2b1830a0da32 100644
--- a/src/main/java/net/minecraft/world/level/entity/EntityLookup.java
+++ b/src/main/java/net/minecraft/world/level/entity/EntityLookup.java
@@ -34,6 +34,26 @@ public class EntityLookup<T extends EntityAccess> {
UUID uUID = entity.getUUID();
if (this.byUuid.containsKey(uUID)) {
LOGGER.warn("Duplicate entity UUID {}: {}", uUID, entity);
+ // Paper start - extra debug info
+ if (entity instanceof net.minecraft.world.entity.Entity entityCast) {
+ if (net.minecraft.server.level.ServerLevel.DEBUG_ENTITIES) {
+ entityCast.addedToWorldStack = net.minecraft.server.level.ServerLevel.getAddToWorldStackTrace(entityCast);
+ }
+
+ T old = this.byUuid.get(entity.getUUID());
+ if (old instanceof net.minecraft.world.entity.Entity oldCast && old != null && oldCast.getId() != entity.getId() && oldCast.valid) {
+ LOGGER.error("Overwrote an existing entity " + oldCast + " with " + entity);
+ if (net.minecraft.server.level.ServerLevel.DEBUG_ENTITIES) {
+ if (oldCast.addedToWorldStack != null) {
+ oldCast.addedToWorldStack.printStackTrace();
+ } else {
+ LOGGER.error("Oddly, the old entity was not added to the world in the normal way. Plugins?");
+ }
+ entityCast.addedToWorldStack.printStackTrace();
+ }
+ }
+ }
+ // Paper end
} else {
this.byUuid.put(uUID, entity);
this.byId.put(entity.getId(), entity);