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Custom modpack server crashes at random times, can't figure out why - Crashlog included

Fedora_69

By Fedora_69
in Support & Bug Reports

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Fedora_69

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Posted (edited)

So I'm hosting a server with a custom modpack thrown together with the twitch app, and it's crashing at random times. We're able to play on it for anything from 2 minutes to over an hour before it crashes and we have to restart it. We can't find any pattern in what people were doing when the crash occurred, and I don't know enough about forge and the minecraft server to figure out if the crash log is saying anything useful. Does anyone know what could be causing this crash?


Crash log:

Spoiler

---- Minecraft Crash Report ----

WARNING: coremods are present:
  llibrary (llibrary-core-1.0.11-1.12.2.jar)
  TransformerLoader (OpenComputers-MC1.12.2-1.7.5.192.jar)
  CTMCorePlugin (CTM-MC1.12.2-1.0.1.30.jar)
  MalisisCorePlugin (malisiscore-1.12.2-6.5.1.jar)
  IvToolkit (IvToolkit-1.3.3-1.12.jar)
  IELoadingPlugin (ImmersiveEngineering-core-0.12-92.jar)
Contact their authors BEFORE contacting forge

// Surprise! Haha. Well, this is awkward.

Time: 3/10/20 9:22 PM
Description: Exception ticking world

java.util.ConcurrentModificationException
    at java.util.HashMap$HashIterator.nextNode(Unknown Source)
    at java.util.HashMap$KeyIterator.next(Unknown Source)
    at net.minecraft.server.management.PlayerChunkMap.func_72693_b(SourceFile:114)
    at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:227)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756)
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    at java.lang.Thread.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Server thread
Stacktrace:
    at java.util.HashMap$HashIterator.nextNode(Unknown Source)
    at java.util.HashMap$KeyIterator.next(Unknown Source)
    at net.minecraft.server.management.PlayerChunkMap.func_72693_b(SourceFile:114)
    at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:227)

-- Affected level --
Details:
    Level name: realworld1
    All players: 3 total; [EntityPlayerMP['Lavirrus'/180, l='realworld1', x=1405.50, y=64.00, z=275.68], EntityPlayerMP['Chanmasvik12'/555, l='realworld1', x=2071.28, y=63.00, z=782.40], EntityPlayerMP['jottapotta'/5278, l='realworld1', x=1366.35, y=59.00, z=445.94]]
    Chunk stats: ServerChunkCache: 1044 Drop: 0
    Level seed: 2278160139971925330
    Level generator: ID 06 - BIOMESOP, ver 0. Features enabled: true
    Level generator options: 
    Level spawn location: World: (203,64,314), Chunk: (at 11,4,10 in 12,19; contains blocks 192,0,304 to 207,255,319), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
    Level time: 1043970 game time, 1203057 day time
    Level dimension: 0
    Level storage version: 0x04ABD - Anvil
    Level weather: Rain time: 134218 (now: false), thunder time: 939 (now: true)
    Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756)
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:397)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    at java.lang.Thread.run(Unknown Source)

-- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_171, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 16123405664 bytes (15376 MB) / 17167810560 bytes (16372 MB) up to 17167810560 bytes (16372 MB)
    JVM Flags: 2 total; -Xmx16384M -Xms16384M
    IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 104
    FML: MCP 9.42 Powered by Forge 14.23.5.2847 70 mods loaded, 70 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

    | State  | ID                      | Version               | Source                                        | Signature                                |
    |:------ |:----------------------- |:--------------------- |:--------------------------------------------- |:---------------------------------------- |
    | LCHIJA | minecraft               | 1.12.2                | minecraft.jar                                 | None                                     |
    | LCHIJA | mcp                     | 9.42                  | minecraft.jar                                 | None                                     |
    | LCHIJA | FML                     | 8.0.99.99             | forge-1.12.2-14.23.5.2847-universal.jar       | None                                     |
    | LCHIJA | forge                   | 14.23.5.2847          | forge-1.12.2-14.23.5.2847-universal.jar       | None                                     |
    | LCHIJA | ivtoolkit               | 1.3.3-1.12            | minecraft.jar                                 | None                                     |
    | LCHIJA | opencomputers|core      | 1.7.5.192             | minecraft.jar                                 | None                                     |
    | LCHIJA | animalium               | 0.3.8                 | Animalium-0.3.8.jar                           | None                                     |
    | LCHIJA | jei                     | 4.15.0.291            | jei_1.12.2-4.15.0.291.jar                     | None                                     |
    | LCHIJA | appleskin               | 1.0.9                 | AppleSkin-mc1.12-1.0.9.jar                    | None                                     |
    | LCHIJA | aquaculture             | 1.6.8                 | Aquaculture-1.12.2-1.6.8.jar                  | None                                     |
    | LCHIJA | baubles                 | 1.5.2                 | Baubles-1.12-1.5.2.jar                        | None                                     |
    | LCHIJA | betteranimalsplus       | 8.2.0                 | betteranimalsplus-1.12.2-8.2.0.jar            | None                                     |
    | LCHIJA | bibliocraft             | 2.4.5                 | BiblioCraft[v2.4.5][MC1.12.2].jar             | None                                     |
    | LCHIJA | biomesoplenty           | 7.0.1.2441            | BiomesOPlenty-1.12.2-7.0.1.2441-universal.jar | None                                     |
    | LCHIJA | ceramics                | 1.12-1.3.7            | Ceramics-1.12-1.3.7.jar                       | None                                     |
    | LCHIJA | chameleon               | 1.12-4.1.3            | Chameleon-1.12-4.1.3.jar                      | None                                     |
    | LCHIJA | mysticalworld           | 1.12.2-1.7.1          | mysticalworld-1.12.2-1.7.1.jar                | None                                     |
    | LCHIJA | chisel                  | MC1.12.2-1.0.1.44     | Chisel-MC1.12.2-1.0.1.44.jar                  | None                                     |
    | LCHIJA | codechickenlib          | 3.2.3.358             | CodeChickenLib-1.12.2-3.2.3.358-universal.jar | f1850c39b2516232a2108a7bd84d1cb5df93b261 |
    | LCHIJA | morpheus                | 1.12.2-3.5.106        | Morpheus-1.12.2-3.5.106.jar                   | None                                     |
    | LCHIJA | comforts                | 1.4.1.3               | comforts-1.12.2-1.4.1.3.jar                   | 2484ef4d131fdc0dca0647aa21b7b944ddb935a1 |
    | LCHIJA | doggytalents            | 1.15.1.4              | DoggyTalents-1.12.2-1.15.1.4-universal.jar    | None                                     |
    | LCHIJA | reccomplex              | 1.4.8.2               | RecurrentComplex-1.4.8.2.jar                  | None                                     |
    | LCHIJA | dynamictrees            | 1.12.2-0.9.7          | DynamicTrees-1.12.2-0.9.7.jar                 | None                                     |
    | LCHIJA | dynamictreesbop         | 1.12.2-1.4.1e         | DynamicTreesBOP-1.12.2-1.4.1e.jar             | None                                     |
    | LCHIJA | harvestcraft            | 1.12.2zb              | Pam's HarvestCraft 1.12.2zf.jar               | None                                     |
    | LCHIJA | dynamictreesphc         | 1.12.2-1.4.2          | DynamicTreesPHC-1.12.2-1.4.2.jar              | None                                     |
    | LCHIJA | rustic                  | 1.1.2                 | rustic-1.1.2.jar                              | None                                     |
    | LCHIJA | thaumcraft              | 6.1.BETA26            | Thaumcraft-1.12.2-6.1.BETA26.jar              | None                                     |
    | LCHIJA | dynamictreestc          | 1.12.2-1.4.1e         | DynamicTreesTC-1.12.2-1.4.1e.jar              | None                                     |
    | LCHIJA | earthworks              | 1.3.4.3               | Earthworks-1.12-1.3.6.jar                     | None                                     |
    | LCHIJA | enderstorage            | 2.4.6.137             | EnderStorage-1.12.2-2.4.6.137-universal.jar   | f1850c39b2516232a2108a7bd84d1cb5df93b261 |
    | LCHIJA | exoticbirds             | 1.0                   | Exotic Birds 1.12.2-3.1.0.jar                 | None                                     |
    | LCHIJA | silentlib               | 3.0.13                | SilentLib-1.12.2-3.0.14+168.jar               | None                                     |
    | LCHIJA | extendeddays            | 0.2.9                 | ExtendedDays-1.12.2-0.2.9-28.jar              | None                                     |
    | LCHIJA | fastleafdecay           | v14                   | FastLeafDecay-v14.jar                         | None                                     |
    | LCHIJA | forgemultipartcbe       | 2.6.2.83              | ForgeMultipart-1.12.2-2.6.2.83-universal.jar  | f1850c39b2516232a2108a7bd84d1cb5df93b261 |
    | LCHIJA | microblockcbe           | 2.6.2.83              | ForgeMultipart-1.12.2-2.6.2.83-universal.jar  | None                                     |
    | LCHIJA | minecraftmultipartcbe   | 2.6.2.83              | ForgeMultipart-1.12.2-2.6.2.83-universal.jar  | None                                     |
    | LCHIJA | grapplemod              | 1.12.2-v11.1          | grapplemod-v11.1-1.12.2.jar                   | None                                     |
    | LCHIJA | waila                   | 1.8.26                | Hwyla-1.8.26-B41_1.12.2.jar                   | None                                     |
    | LCHIJA | twilightforest          | 3.10.1013             | twilightforest-1.12.2-3.10.1013-universal.jar | None                                     |
    | LCHIJA | immersiveengineering    | 0.12-92               | ImmersiveEngineering-0.12-92.jar              | 4cb49fcde3b43048c9889e0a3d083225da926334 |
    | LCHIJA | immersivepetroleum      | 1.1.9                 | immersivepetroleum-1.12.2-1.1.9.jar           | None                                     |
    | LCHIJA | immersivetech           | 1.3.10                | immersivetech-1.12-1.3.10.jar                 | None                                     |
    | LCHIJA | ironchest               | 1.12.2-7.0.67.844     | ironchest-1.12.2-7.0.72.847.jar               | None                                     |
    | LCHIJA | journeymap              | 1.12.2-5.7.0          | journeymap-1.12.2-5.7.0.jar                   | None                                     |
    | LCHIJA | malisiscore             | 1.12.2-6.5.1-SNAPSHOT | malisiscore-1.12.2-6.5.1.jar                  | None                                     |
    | LCHIJA | malisisdoors            | 1.12.2-7.3.0          | malisisdoors-1.12.2-7.3.0.jar                 | None                                     |
    | LCHIJA | mrtjpcore               | 2.1.4.43              | MrTJPCore-1.12.2-2.1.4.43-universal.jar       | None                                     |
    | LCHIJA | nps                     | 2.1                   | nps_1.12-2.1.jar                              | None                                     |
    | LCHIJA | opencomputers           | 1.7.5.192             | OpenComputers-MC1.12.2-1.7.5.192.jar          | None                                     |
    | LCHIJA | openglider              | @VERSION@             | OpenGlider-1.12.1-1.1.0.jar                   | None                                     |
    | LCHIJA | patchouli               | 1.0-20                | Patchouli-1.0-20.jar                          | None                                     |
    | LCHIJA | projectred-core         | 4.9.4.120             | ProjectRed-1.12.2-4.9.4.120-Base.jar          | None                                     |
    | LCHIJA | projectred-integration  | 4.9.4.120             | ProjectRed-1.12.2-4.9.4.120-integration.jar   | None                                     |
    | LCHIJA | projectred-transmission | 4.9.4.120             | ProjectRed-1.12.2-4.9.4.120-integration.jar   | None                                     |
    | LCHIJA | projectred-illumination | 4.9.4.120             | ProjectRed-1.12.2-4.9.4.120-lighting.jar      | None                                     |
    | LCHIJA | projectred-exploration  | 4.9.4.120             | ProjectRed-1.12.2-4.9.4.120-world.jar         | None                                     |
    | LCHIJA | roguelike               | 1.8.0                 | RoguelikeDungeons-1.12.2-1.8.0.jar            | None                                     |
    | LCHIJA | rusticthaumaturgy       | 4.4a                  | Rustic Thaumaturgy-4.4a.jar                   | None                                     |
    | LCHIJA | sit                     | v1.3                  | sit-1.12.2-v1.3.jar                           | None                                     |
    | LCHIJA | spartanshields          | 1.5.4                 | SpartanShields-1.12.2-1.5.4.jar               | None                                     |
    | LCHIJA | spartanweaponry         | beta 1.3.8            | SpartanWeaponry-1.12.2-beta-1.3.8.jar         | None                                     |
    | LCHIJA | storagedrawers          | 1.12.2-5.4.1          | StorageDrawers-1.12.2-5.4.1.jar               | None                                     |
    | LCHIJA | tombstone               | 3.6.8                 | tombstone-3.6.8-1.12.2.jar                    | None                                     |
    | LCHIJA | wearablebackpacks       | 3.1.4                 | WearableBackpacks-1.12.2-3.1.4.jar            | None                                     |
    | LCHIJA | llibrary                | 1.7.19                | llibrary-1.7.19-1.12.2.jar                    | b9f30a813bee3b9dd5652c460310cfcd54f6b7ec |
    | LCHIJA | orelib                  | 3.6.0.1               | OreLib-1.12.2-3.6.0.1.jar                     | 7a2128d395ad96ceb9d9030fbd41d035b435753a |
    | LCHIJA | mysticallib             | 1.12.2-1.6.0          | mysticallib-1.12.2-1.6.0.jar                  | None                                     |

    Loaded coremods (and transformers): 
llibrary (llibrary-core-1.0.11-1.12.2.jar)
  net.ilexiconn.llibrary.server.core.plugin.LLibraryTransformer
  net.ilexiconn.llibrary.server.core.patcher.LLibraryRuntimePatcher
TransformerLoader (OpenComputers-MC1.12.2-1.7.5.192.jar)
  li.cil.oc.common.asm.ClassTransformer
CTMCorePlugin (CTM-MC1.12.2-1.0.1.30.jar)
  team.chisel.ctm.client.asm.CTMTransformer
MalisisCorePlugin (malisiscore-1.12.2-6.5.1.jar)
  
IvToolkit (IvToolkit-1.3.3-1.12.jar)
  
IELoadingPlugin (ImmersiveEngineering-core-0.12-92.jar)
  blusunrize.immersiveengineering.common.asm.IEClassTransformer
    Profiler Position: N/A (disabled)
    Player Count: 3 / 20; [EntityPlayerMP['Lavirrus'/180, l='realworld1', x=1405.50, y=64.00, z=275.68], EntityPlayerMP['Chanmasvik12'/555, l='realworld1', x=2071.28, y=63.00, z=782.40], EntityPlayerMP['jottapotta'/5278, l='realworld1', x=1366.35, y=59.00, z=445.94]]
    Is Modded: Definitely; Server brand changed to 'fml,forge'
    Type: Dedicated Server (map_server.txt)

 

Edit: Removed dynamic surroundings, mod name tooltip and armor sound tweak from server as they were client side, same crash still happened after like 30 mins.

 

Second edit: Tried generating and playing on a new world on the server, played for an hour without crashing. The problem is either specific to our world, or something that starts happening after a while. Leaning towards the latter, considering that the frequency of crashes seems to be increasing in our main world.

Edited by Fedora_69
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DaemonUmbra Reality Controller

DaemonUmbra

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1.12 is no longer supported on this forum.

Please update to a modern version of Minecraft to receive support.

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

Spoiler

Logs (Most issues require logs to diagnose):

Spoiler

Please post logs using one of the following sites (Thank you Lumber Wizard for the list):

https://gist.github.com/: 100MB Requires member (Free)

https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)

https://hastebin.com/: 400KB

Do NOT use sites like Mediafire, Dropbox, OneDrive, Google Drive, or a site that has a countdown before offering downloads.

 

What to provide:

...for Crashes and Runtime issues:

Minecraft 1.14.4 and newer:

Post debug.log

Older versions:

Please update...

 

...for Installer Issues:

Post your installer log, found in the same place you ran the installer

This log will be called either installer.log or named the same as the installer but with .log on the end

Note for Windows users:

Windows hides file extensions by default so the installer may appear without the .jar extension then when the .log is added the log will appear with the .jar extension

 

Where to get it:

Mojang Launcher: When using the Mojang launcher debug.log is found in .minecraft\logs.

 

Curse/Overwolf: If you are using the Curse Launcher, their configurations break Forge's log settings, fortunately there is an easier workaround than I originally thought, this works even with Curse's installation of the Minecraft launcher as long as it is not launched THROUGH Twitch:

Spoiler
  1. Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
  2. Make a launcher profile targeting this version of Forge.
  3. Set the launcher profile's GameDir property to the pack's instance folder (not the instances folder, the folder that has the pack's name on it).
  4. Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.

Video:

Spoiler

 

 

 

or alternately, 

 

Fallback ("No logs are generated"):

If you don't see logs generated in the usual place, provide the launcher_log.txt from .minecraft

 

Server Not Starting:

Spoiler

If your server does not start or a command window appears and immediately goes away, run the jar manually and provide the output.

 

Reporting Illegal/Inappropriate Adfocus Ads:

Spoiler

Get a screenshot of the URL bar or copy/paste the whole URL into a thread on the General Discussion board with a description of the Ad.

Lex will need the Ad ID contained in that URL to report it to Adfocus' support team.

 

Posting your mod as a GitHub Repo:

Spoiler

When you have an issue with your mod the most helpful thing you can do when asking for help is to provide your code to those helping you. The most convenient way to do this is via GitHub or another source control hub.

When setting up a GitHub Repo it might seem easy to just upload everything, however this method has the potential for mistakes that could lead to trouble later on, it is recommended to use a Git client or to get comfortable with the Git command line. The following instructions will use the Git Command Line and as such they assume you already have it installed and that you have created a repository.

 

  1. Open a command prompt (CMD, Powershell, Terminal, etc).
  2. Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
  3. Run the following commands:
    1. git init
    2. git remote add origin [Your Repository's URL]
      • In the case of GitHub it should look like: https://GitHub.com/[Your Username]/[Repo Name].git
    3. git fetch
    4. git checkout --track origin/master
    5. git stage *
    6. git commit -m "[Your commit message]"
    7. git push
  4. Navigate to GitHub and you should now see most of the files.
    • note that it is intentional that some are not synced with GitHub and this is done with the (hidden) .gitignore file that Forge’s MDK has provided (hence the strictness on which folder git init is run from)
  5. Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]

 

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