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1487ee284e
For some reason, this doesn't always seem to capture all states of shutdown, either the logger is just being fun, or, potentially, the thread is already marked as dead when we're getting called so the trace is not generated through the method on Thread
87 lines
4.2 KiB
Diff
87 lines
4.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Thu, 18 Feb 2021 20:23:28 +0000
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Subject: [PATCH] misc debugging dumps
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diff --git a/src/main/java/io/papermc/paper/util/TraceUtil.java b/src/main/java/io/papermc/paper/util/TraceUtil.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/util/TraceUtil.java
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@@ -0,0 +0,0 @@
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+package io.papermc.paper.util;
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+
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+import org.bukkit.Bukkit;
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+
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+public final class TraceUtil {
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+
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+ public static void dumpTraceForThread(Thread thread, String reason) {
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+ Bukkit.getLogger().warning(thread.getName() + ": " + reason);
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+ StackTraceElement[] trace = thread.getStackTrace();
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+ for (StackTraceElement traceElement : trace) {
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+ Bukkit.getLogger().warning("\tat " + traceElement);
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+ }
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+ }
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+
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+ public static void dumpTraceForThread(String reason) {
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+ new Throwable(reason).printStackTrace();
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -0,0 +0,0 @@ import io.netty.buffer.ByteBuf;
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import io.netty.buffer.ByteBufOutputStream;
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import io.netty.buffer.Unpooled;
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import io.papermc.paper.event.entity.EntityMoveEvent;
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+import io.papermc.paper.util.TraceUtil;
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import it.unimi.dsi.fastutil.longs.LongIterator;
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import java.awt.image.BufferedImage;
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import java.io.BufferedWriter;
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@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
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// CraftBukkit start
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private boolean hasStopped = false;
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public volatile boolean hasFullyShutdown = false; // Paper
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+ private boolean hasLoggedStop = false; // Paper
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private final Object stopLock = new Object();
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public final boolean hasStopped() {
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synchronized (stopLock) {
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@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
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if (hasStopped) return;
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hasStopped = true;
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}
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+ if (!hasLoggedStop && isDebugging()) TraceUtil.dumpTraceForThread("Server stopped"); // Paper
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// Paper start - kill main thread, and kill it hard
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shutdownThread = Thread.currentThread();
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org.spigotmc.WatchdogThread.doStop(); // Paper
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@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
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public void safeShutdown(boolean flag, boolean isRestarting) {
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this.isRunning = false;
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this.isRestarting = isRestarting;
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+ this.hasLoggedStop = true; // Paper
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+ if (isDebugging()) TraceUtil.dumpTraceForThread("Server stopped"); // Paper
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if (flag) {
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try {
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this.serverThread.join();
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -0,0 +0,0 @@ import com.mojang.serialization.Lifecycle;
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import io.netty.buffer.ByteBuf;
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import io.netty.buffer.ByteBufOutputStream;
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import io.netty.buffer.Unpooled;
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+import io.papermc.paper.util.TraceUtil;
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import it.unimi.dsi.fastutil.objects.Object2ObjectLinkedOpenHashMap;
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import java.awt.image.BufferedImage;
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import java.io.File;
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@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
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plugin.getDescription().getName(),
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"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"
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));
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+ if (console.isDebugging()) TraceUtil.dumpTraceForThread(worker.getThread(), "still running"); // Paper
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}
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loadPlugins();
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enablePlugins(PluginLoadOrder.STARTUP);
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