Paper/patches/server/0621-misc-debugging-dumps.patch
2021-09-03 19:57:21 +02:00

88 lines
4.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 18 Feb 2021 20:23:28 +0000
Subject: [PATCH] misc debugging dumps
diff --git a/src/main/java/io/papermc/paper/util/TraceUtil.java b/src/main/java/io/papermc/paper/util/TraceUtil.java
new file mode 100644
index 0000000000000000000000000000000000000000..2d5494d2813b773e60ddba6790b750a9a08f21f8
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/TraceUtil.java
@@ -0,0 +1,18 @@
+package io.papermc.paper.util;
+
+import org.bukkit.Bukkit;
+
+public final class TraceUtil {
+
+ public static void dumpTraceForThread(Thread thread, String reason) {
+ Bukkit.getLogger().warning(thread.getName() + ": " + reason);
+ StackTraceElement[] trace = thread.getStackTrace();
+ for (StackTraceElement traceElement : trace) {
+ Bukkit.getLogger().warning("\tat " + traceElement);
+ }
+ }
+
+ public static void dumpTraceForThread(String reason) {
+ new Throwable(reason).printStackTrace();
+ }
+}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 9111d3fb84ca4a7dc881e1326ac0c93a81ec7f58..f15cb87d96b3f5028ab6ceba1e9026525cdecbee 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -937,6 +937,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
// CraftBukkit start
private boolean hasStopped = false;
public volatile boolean hasFullyShutdown = false; // Paper
+ private boolean hasLoggedStop = false; // Paper
private final Object stopLock = new Object();
public final boolean hasStopped() {
synchronized (this.stopLock) {
@@ -951,6 +952,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
if (this.hasStopped) return;
this.hasStopped = true;
}
+ if (!hasLoggedStop && isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread("Server stopped"); // Paper
// Paper start - kill main thread, and kill it hard
shutdownThread = Thread.currentThread();
org.spigotmc.WatchdogThread.doStop(); // Paper
@@ -1061,6 +1063,8 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
public void safeShutdown(boolean flag, boolean isRestarting) {
this.isRestarting = isRestarting;
+ this.hasLoggedStop = true; // Paper
+ if (isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread("Server stopped"); // Paper
// Paper end
this.running = false;
if (flag) {
diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
index 7da88bc52161dc32da22451077a4dfd8facb2de1..f4cff18afa816aa7efb2f80e0af51216129963a4 100644
--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
@@ -200,6 +200,11 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
}
} catch (Exception exception) {
TranslatableComponent chatmessage = new TranslatableComponent("multiplayer.disconnect.invalid_player_data");
+ // Paper start
+ if (MinecraftServer.getServer().isDebugging()) {
+ exception.printStackTrace();
+ }
+ // Paper end
this.connection.send(new ClientboundDisconnectPacket(chatmessage));
this.connection.disconnect(chatmessage);
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 5cda9f21219decf6e4b9e5cc6e83b4749066f20f..5b95bb1d1361740f5605873fb707980bb911e6a3 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -946,6 +946,7 @@ public final class CraftServer implements Server {
plugin.getDescription().getName(),
"This plugin is not properly shutting down its async tasks when it is being reloaded. This may cause conflicts with the newly loaded version of the plugin"
));
+ if (console.isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread(worker.getThread(), "still running"); // Paper
}
this.loadPlugins();
this.enablePlugins(PluginLoadOrder.STARTUP);