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Somehow, a chunkholder is present in the unload queue after it has been unloaded. It is likely that this is a result of adding the chunk holder to the unload queue while it is unloading. However, that should not be possible. To find out where it is being added to the unload queue, track the last stacktrace which adds to the unload queue and check on chunk holder remove if the holder is present in the unload queue and log the stacktrace.
57 lines
2.7 KiB
Diff
57 lines
2.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Wed, 19 Jun 2024 10:52:07 -0700
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Subject: [PATCH] Add debug for chunk system unload crash
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Somehow, a chunkholder is present in the unload queue after
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it has been unloaded. It is likely that this is a result of
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adding the chunk holder to the unload queue while it is
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unloading. However, that should not be possible.
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To find out where it is being added to the unload queue, track
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the last stacktrace which adds to the unload queue and check
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on chunk holder remove if the holder is present in the unload queue
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and log the stacktrace.
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diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/NewChunkHolder.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/NewChunkHolder.java
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index d5fc5756ea960096ff23376a6b7ac68a2a462d22..0715514c8bb49c805b04f42ff37903a7d590aaa8 100644
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--- a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/NewChunkHolder.java
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+++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/scheduling/NewChunkHolder.java
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@@ -748,9 +748,22 @@ public final class NewChunkHolder {
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/** Unloaded from chunk map */
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private boolean unloaded;
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+ private Throwable lastUnloadAdd;
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void markUnloaded() {
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this.unloaded = true;
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+ if (this.inUnloadQueue) {
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+ if (this.lastUnloadAdd != null) {
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+ LOGGER.error("Unloaded chunkholder " + this.toString() + " while in the unload queue", this.lastUnloadAdd);
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+ } else {
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+ // should never happen
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+ LOGGER.error("Unloaded chunkholder " + this.toString() + " while in the unload queue without a throwable");
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+ }
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+
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+ // prevent crash by removing (note: we hold scheduling lock here)
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+ this.inUnloadQueue = false;
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+ this.scheduler.chunkHolderManager.unloadQueue.removeChunk(this.chunkX, this.chunkZ);
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+ }
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}
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private boolean inUnloadQueue = false;
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@@ -768,12 +781,14 @@ public final class NewChunkHolder {
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// ensure in unload queue
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if (!this.inUnloadQueue) {
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this.inUnloadQueue = true;
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+ this.lastUnloadAdd = new Throwable();
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this.scheduler.chunkHolderManager.unloadQueue.addChunk(this.chunkX, this.chunkZ);
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}
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} else {
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// ensure not in unload queue
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if (this.inUnloadQueue) {
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this.inUnloadQueue = false;
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+ this.lastUnloadAdd = null;
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this.scheduler.chunkHolderManager.unloadQueue.removeChunk(this.chunkX, this.chunkZ);
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}
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}
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