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Fix deadlock on watchdog crash (#7535)

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Jason 2022-03-04 01:26:22 -07:00 committet von GitHub
Ursprung 15b6b3db2c
Commit c09365aeac
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@ -0,0 +1,21 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Fri, 4 Mar 2022 00:12:49 -0700
Subject: [PATCH] Fix deadlock on watchdog crash
The watchdog thread sets MinecraftServer#forceTicks to true which will
cause waitUntilNextTick to hang when the task queue is drained.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index d86fa3bbdc6cc838ed0ab96c2c084386dd4593e9..46a959633a88ad146e8935d297ffddee2384e275 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1014,7 +1014,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}, false);
}
- this.waitUntilNextTick();
+ this.managedBlock(() -> !this.canSleepForTickNoOversleep() || this.getPendingTasksCount() == 0); // Paper - based on waitUntilNextTick
}
this.saveAllChunks(false, true, false);