PaperMC/patches/server/0365-misc-debugging-dumps.patch

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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/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
index 40ff3090fb17fb0f01a9b52639fb783ea57ce6b6..d39743d9626eb01c942194387dafb1106f13601b 100644
--- a/src/main/java/net/minecraft/commands/Commands.java
+++ b/src/main/java/net/minecraft/commands/Commands.java
@@ -341,7 +341,7 @@ public class Commands {
} catch (Exception exception) {
MutableComponent ichatmutablecomponent = Component.literal(exception.getMessage() == null ? exception.getClass().getName() : exception.getMessage());
- if (Commands.LOGGER.isDebugEnabled()) {
+ if (commandlistenerwrapper.getServer().isDebugging() || Commands.LOGGER.isDebugEnabled()) { // Paper - Debugging
Commands.LOGGER.error("Command exception: /{}", s, exception);
StackTraceElement[] astacktraceelement = exception.getStackTrace();
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index fe5041d05f93900a22049a2176cb59d226c263bf..ae7bddabc445dc42394235a3f87b2a3a5c27800a 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -913,6 +913,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// CraftBukkit start
private boolean hasStopped = false;
+ private boolean hasLoggedStop = false; // Paper - Debugging
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private final Object stopLock = new Object();
public final boolean hasStopped() {
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synchronized (this.stopLock) {
@@ -927,6 +928,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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if (this.hasStopped) return;
this.hasStopped = true;
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}
+ if (!hasLoggedStop && isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread("Server stopped"); // Paper - Debugging
// CraftBukkit end
if (this.metricsRecorder.isRecording()) {
this.cancelRecordingMetrics();
@@ -1001,6 +1003,8 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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}
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public void safeShutdown(boolean waitForShutdown, boolean isRestarting) {
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this.isRestarting = isRestarting;
+ this.hasLoggedStop = true; // Paper - Debugging
+ if (isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread("Server stopped"); // Paper - Debugging
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// Paper end
this.running = false;
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if (waitForShutdown) {
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diff --git a/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
index 04a728a16bb629adbae1cd8586764a6dbc22b5dc..d130f843975236018df4fa2ccc3ca6aaca7a06b8 100644
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--- a/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerConfigurationPacketListenerImpl.java
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@@ -131,6 +131,11 @@ public class ServerConfigurationPacketListenerImpl extends ServerCommonPacketLis
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this.connection.resumeInboundAfterProtocolChange();
} catch (Exception exception) {
ServerConfigurationPacketListenerImpl.LOGGER.error("Couldn't place player in world", exception);
+ // Paper start - Debugging
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+ if (MinecraftServer.getServer().isDebugging()) {
+ exception.printStackTrace();
+ }
+ // Paper end - Debugging
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this.connection.send(new ClientboundDisconnectPacket(ServerConfigurationPacketListenerImpl.DISCONNECT_REASON_INVALID_DATA));
this.connection.disconnect(ServerConfigurationPacketListenerImpl.DISCONNECT_REASON_INVALID_DATA);
}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 53eb6cbcdaf07658640d68f1e3c46c9171f0c5b6..0d56ed477561d8f876f4c8f52934688404e3161d 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -1006,6 +1006,7 @@ public final class CraftServer implements Server {
plugin.getDescription().getFullName(),
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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"
));
+ if (console.isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread(worker.getThread(), "still running"); // Paper - Debugging
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}
io.papermc.paper.plugin.PluginInitializerManager.reload(this.console); // Paper
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this.loadPlugins();