ea855e2b46
Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Developers!: You will need to clean up your work/Minecraft/1.13.2 folder for this Also, restore a patch that was dropped in the last upstream Bukkit Changes: 279eeab3 Fix command description not being set 96e2bb18 Remove debug print from SyntheticEventTest CraftBukkit Changes: d3ed1516 Fix dangerously threaded beacons 217a293d Don't relocate joptsimple to allow --help to work. 1be05a21 Prepare for imminent Java 12 release a49270b2 Mappings Update 5259d80c SPIGOT-4669: Fix PlayerTeleportEvent coordinates for relative teleports Spigot Changes: e6eb36f2 Rebuild patches
35 lines
1.6 KiB
Diff
35 lines
1.6 KiB
Diff
From a3fbb3c9303e070a1a4110b2bcacfb69e5562054 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Wed, 3 Oct 2018 19:04:53 +0100
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Subject: [PATCH] Fix FileIOThread concurrency issues
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FileIOThread was using two volatile counters in order to track if
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any pending work was in the queue, this causes potential concurrency
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issues when this counter is updated from multiple threads, potentially
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causing these counters to desync due to the unsafe volatile update
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diff --git a/src/main/java/net/minecraft/server/FileIOThread.java b/src/main/java/net/minecraft/server/FileIOThread.java
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index 3c688f546..570624600 100644
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--- a/src/main/java/net/minecraft/server/FileIOThread.java
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+++ b/src/main/java/net/minecraft/server/FileIOThread.java
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@@ -10,7 +10,7 @@ public class FileIOThread implements Runnable {
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private static final Logger a = LogManager.getLogger();
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private static final FileIOThread b = new FileIOThread();
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- private final List<IAsyncChunkSaver> c = Collections.synchronizedList(Lists.newArrayList());
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+ private final List<IAsyncChunkSaver> c = Collections.synchronizedList(Lists.newArrayList()); private List<IAsyncChunkSaver> getThreadedIOQueue() { return c; } // Paper - OBFHELPER
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private volatile long d;
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private volatile long e;
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private volatile boolean f;
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@@ -75,7 +75,7 @@ public class FileIOThread implements Runnable {
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public void b() throws InterruptedException {
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this.f = true;
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- while (this.d != this.e) {
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+ while(!this.getThreadedIOQueue().isEmpty()) { // Paper - check actual list size
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Thread.sleep(10L);
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}
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--
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2.21.0
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