Minecraft Forums

Rules say to post a new thread rather than posting in an existing one, so here we go..

I was playing one of my worlds, and the game suddenly crashed as I loaded a new chunk. No warning, just crashed. I can't get back into the world; Minecraft just exits on the "downloading terrain" step.

I went into MCEdit and completely deleted the offending chunks. I was able to get back into the world, but as soon as I crossed the exact same point as before, the game crashed.

Here's the error log..

---- Minecraft Crash Report ----
// Ouch. That hurt

Time: 10/5/14 6:32 PM
Description: Ticking memory connection

java.lang.IllegalArgumentException: n must be positive
at java.util.Random.nextInt(Unknown Source)
at aia.a(SourceFile:122)
at aia.a(SourceFile:27)
at ahu.a(SourceFile:364)
at aij.a(SourceFile:42)
at aqz.a(SourceFile:432)
at ms.a(SourceFile:166)
at apx.a(SourceFile:781)
at ms.c(SourceFile:101)
at mr.(PlayerManager.java:508)
at mq.getOrCreateChunkWatcher(PlayerManager.java:203)
at mq.a(PlayerManager.java:193)
at mq.a(PlayerManager.java:240)
at oi.a(SourceFile:175)
at oi.c(SourceFile:226)
at oi.a(SourceFile:120)
at nn.c(SourceFile:86)
at nn.a(SourceFile:52)
at ej.a(SourceFile:176)
at nc.c(SourceFile:134)
at net.minecraft.server.MinecraftServer.v(SourceFile:540)
at net.minecraft.server.MinecraftServer.u(SourceFile:453)
at bsx.u(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(SourceFile:369)
at lj.run(SourceFile:628)


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

-- Head --
Stacktrace:
at java.util.Random.nextInt(Unknown Source)
at aia.a(SourceFile:122)
at aia.a(SourceFile:27)
at ahu.a(SourceFile:364)
at aij.a(SourceFile:42)
at aqz.a(SourceFile:432)
at ms.a(SourceFile:166)
at apx.a(SourceFile:781)
at ms.c(SourceFile:101)
at mr.(PlayerManager.java:508)
at mq.getOrCreateChunkWatcher(PlayerManager.java:203)
at mq.a(PlayerManager.java:193)
at mq.a(PlayerManager.java:240)
at oi.a(SourceFile:175)
at oi.c(SourceFile:226)
at oi.a(SourceFile:120)
at nn.c(SourceFile:86)
at nn.a(SourceFile:52)
at ej.a(SourceFile:176)

-- Ticking connection --
Details:
Connection: [email protected]
Stacktrace:
at nc.c(SourceFile:134)
at net.minecraft.server.MinecraftServer.v(SourceFile:540)
at net.minecraft.server.MinecraftServer.u(SourceFile:453)
at bsx.u(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(SourceFile:369)
at lj.run(SourceFile:628)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 7718385928 bytes (7360 MB) / 8039956480 bytes (7667 MB) up to 8039956480 bytes (7667 MB)
JVM Flags: 3 total; -Xms8000m -Xmx8000m -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 6, allocated: 12, tallocated: 94
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 8; [mw['nope'/4, l='SkyBlock2.1', x=-7.62, y=60.50, z=-497.05]]
Type: Integrated Server (map_client.txt)
Is Modded: Very likely; Jar signature invalidated



Says modded, but all mods are disabled. What looks weird to me is the memory line--notice how it's 7360 / 7667 MB? I was originally running at 2500, but saw something like 2300/2500 in the log, so I pushed it up to 4000, then 8000. It seems like nearly all of the memory available to Minecraft is being used, or perhaps that is normal and not an issue. As you can see, the map is Skyblock, so there really should not be a memory issue here..!



if anyone has advice for resolving this, that'd be greatly appreciated!

Ok, so I turned my render distance WAY down, and can play just fine, crossing chunks and everything. If I put my render distance back to its usual setting (far), I crash as soon as crossing a chunk. Interesting...



I will get a completely fresh .jar and try that.

Edit: fresh jar, mods deleted from folder, and same issue. Works fine with low render distance, but fails with high. I don't understand why probably the least memory intensive world possible is causing crashes, while my other worlds play fine with far render distance.:| I guess I can try giving it more memory, but my PC idles at 7000, so there isn't a whole lot to spare if I give Java any more than 8000...

New crash now...WITH 4 chunk render distance. Managed to get another 120 blocks or so before this crash.



---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 10/5/14 7:02 PM
Description: Exception getting block type in world

java.lang.IllegalArgumentException: n must be positive
at java.util.Random.nextInt(Unknown Source)
at aia.a(SourceFile:122)
at aia.a(SourceFile:27)
at ahu.a(SourceFile:364)
at aij.a(SourceFile:42)
at aqz.a(SourceFile:432)
at ms.a(SourceFile:166)
at apx.a(SourceFile:775)
at ms.c(SourceFile:101)
at ms.d(SourceFile:114)
at ahb.e(SourceFile:310)
at ahb.a(SourceFile:248)
at ahb.a(SourceFile:1723)
at aho.a(SpawnerAnimals.java:288)
at aho.a(SpawnerAnimals.java:172)
at mt.b(SourceFile:117)
at WorldServerOF.b(WorldServerOF.java:234)
at net.minecraft.server.MinecraftServer.v(SourceFile:514)
at net.minecraft.server.MinecraftServer.u(SourceFile:453)
at bsx.u(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(SourceFile:369)
at lj.run(SourceFile:628)


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

-- Head --
Stacktrace:
at java.util.Random.nextInt(Unknown Source)
at aia.a(SourceFile:122)
at aia.a(SourceFile:27)
at ahu.a(SourceFile:364)
at aij.a(SourceFile:42)
at aqz.a(SourceFile:432)
at ms.a(SourceFile:166)
at apx.a(SourceFile:775)
at ms.c(SourceFile:101)
at ms.d(SourceFile:114)
at ahb.e(SourceFile:310)

-- Requested block coordinates --
Details:
Found chunk: true
Location: World: (-16,1,-756), Chunk: (at 0,0,12 in -1,-48; contains blocks -16,0,-768 to -1,255,-753), Region: (-1,-2; contains chunks -32,-64 to -1,-33, blocks -512,0,-1024 to -1,255,-513)
Stacktrace:
at ahb.a(SourceFile:248)
at ahb.a(SourceFile:1723)
at aho.a(SpawnerAnimals.java:288)
at aho.a(SpawnerAnimals.java:172)
at mt.b(SourceFile:117)
at WorldServerOF.b(WorldServerOF.java:234)

-- Affected level --
Details:
Level name: SkyBlock2.1
All players: 1 total; [mw['nopeee'/43, l='SkyBlock2.1', x=-7.58, y=60.50, z=-624.10]]
Chunk stats: ServerChunkCache: 951 Drop: 0
Level seed: 1435672245
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (0,66,-3), Chunk: (at 0,4,13 in 0,-1; contains blocks 0,0,-16 to 15,255,-1), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Level time: 1999835 game time, 2023451 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 76169 (now: false), thunder time: 43700 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.v(SourceFile:514)
at net.minecraft.server.MinecraftServer.u(SourceFile:453)
at bsx.u(IntegratedServer.java:186)
at net.minecraft.server.MinecraftServer.run(SourceFile:369)
at lj.run(SourceFile:628)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 7826352448 bytes (7463 MB) / 8039956480 bytes (7667 MB) up to 8039956480 bytes (7667 MB)
JVM Flags: 3 total; -Xms8000m -Xmx8000m -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 6, allocated: 13, tallocated: 95
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 1 / 8; [mw['nope'/43, l='SkyBlock2.1', x=-7.58, y=60.50, z=-624.10]]
Type: Integrated Server (map_client.txt)
Is Modded: Very likely; Jar signature invalidated



This is the fresh .jar, so no clue why it says modded. I'm using MagicLauncher 1.2.5, so perhaps it's causing that message... Will try without it, but feel like this is something memory-related...