[MC-99639] Random chunk generation on crash

I recently had a random chunk generate on a game crash. I was throwing eggs into my chicken farm and Minecraft crashed on me, when I rebooted the game my chicken farm had a chunk randomly appear in the side of it. The chunk also removed a portion of the villager farm I had been building.

Besides having a new chunk appear in the area, it moved the section of the villager farm (that the chunk replaced) to a new area. The doors and the entrance into the farm were all still intact, just moved about 100 blocks away. It also moved a random chunk of roofed forest into the plains beside it.

I just thought that this was a interesting glitch y'all should know about.

Related issues

duplicates

MC-81488 Scrambled chunks on my single player world

Attachments

Comments

migrated 2016-03-15T23:27:20Z

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kumasasa 2016-03-16T20:02:05Z

Please attach the crash report from ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]).

migrated 2016-03-16T22:20:16Z

I am pretty sure the crash report you need is 2016-03-14-3

I say that because 14-4 shows that I took some of the screenshots I attached earlier.

kumasasa 2016-03-17T00:37:06Z

There wasn't a crash, jist lag:

[19:53:16] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2298ms behind, skipping 45 tick(s)
[19:53:33] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2724ms behind, skipping 54 tick(s)
[19:53:50] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2728ms behind, skipping 54 tick(s)
[19:54:06] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2597ms behind, skipping 51 tick(s)
[19:54:21] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2170ms behind, skipping 43 tick(s)
[19:54:38] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3538ms behind, skipping 70 tick(s)
[19:54:54] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3259ms behind, skipping 65 tick(s)
[19:55:09] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3000ms behind, skipping 60 tick(s)
[19:55:26] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3527ms behind, skipping 70 tick(s)
[19:55:42] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3177ms behind, skipping 63 tick(s)
[19:55:58] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3054ms behind, skipping 61 tick(s)
[19:56:14] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3235ms behind, skipping 64 tick(s)
[19:56:30] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2481ms behind, skipping 49 tick(s)
[19:56:45] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2346ms behind, skipping 46 tick(s)
[19:57:03] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2940ms behind, skipping 58 tick(s)
[19:57:15] [User Authenticator #2/INFO]: UUID of player Peppered_Rose is cc20ddda-0a31-4388-99aa-d1f88ea5b52e

but after closing and reopening:

[20:50:25] [Client thread/ERROR]: Exception reading C:\Users\Paul\AppData\Roaming\.minecraft\saves\New World-\level.dat
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at dx.a(SourceFile:24) ~[1.9.jar:?]
	at azg.a(SourceFile:82) [1.9.jar:?]
	at azg.c(SourceFile:66) [1.9.jar:?]
	at azd.b(SourceFile:57) [1.9.jar:?]
	at bho.e(SourceFile:35) [1.9.jar:?]
	at bho.<init>(SourceFile:28) [1.9.jar:?]
	at bhm.b(SourceFile:43) [1.9.jar:?]
	at bfb.a(SourceFile:367) [1.9.jar:?]
	at bcf.a(SourceFile:894) [1.9.jar:?]
	at bfi.a(SourceFile:237) [1.9.jar:?]
	at bfb.a(SourceFile:341) [1.9.jar:?]
	at bfi.a(SourceFile:500) [1.9.jar:?]
	at bfb.k(SourceFile:404) [1.9.jar:?]
	at bfb.p(SourceFile:381) [1.9.jar:?]
	at bcf.t(SourceFile:1575) [1.9.jar:?]
	at bcf.av(SourceFile:962) [1.9.jar:?]
	at bcf.a(SourceFile:392) [1.9.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.9.jar:?]
[20:50:27] [Client thread/ERROR]: Exception reading C:\Users\Paul\AppData\Roaming\.minecraft\saves\New World-\level.dat
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at dx.a(SourceFile:24) ~[1.9.jar:?]
	at azg.a(SourceFile:82) [1.9.jar:?]
	at azf.d(SourceFile:99) [1.9.jar:?]
	at bcf.a(SourceFile:2086) [1.9.jar:?]
	at bhn.e(SourceFile:227) [1.9.jar:?]
	at bhn.a(SourceFile:182) [1.9.jar:?]
	at bhn.a(SourceFile:148) [1.9.jar:?]
	at bdl.b(SourceFile:41) [1.9.jar:?]
	at bhm.a(SourceFile:118) [1.9.jar:?]
	at bfb.k(SourceFile:404) [1.9.jar:?]
	at bhm.k(SourceFile:50) [1.9.jar:?]
	at bfb.p(SourceFile:381) [1.9.jar:?]
	at bcf.t(SourceFile:1575) [1.9.jar:?]
	at bcf.av(SourceFile:962) [1.9.jar:?]
	at bcf.a(SourceFile:392) [1.9.jar:?]
	at net.minecraft.client.main.Main.main(SourceFile:124) [1.9.jar:?]
[20:50:27] [Server thread/INFO]: Starting integrated minecraft server version 1.9
[20:50:27] [Server thread/INFO]: Generating keypair
[20:50:27] [Server thread/ERROR]: Exception reading C:\Users\Paul\AppData\Roaming\.minecraft\saves\New World-\level.dat
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at dx.a(SourceFile:24) ~[1.9.jar:?]
	at azg.a(SourceFile:82) [1.9.jar:?]
	at azg.c(SourceFile:66) [1.9.jar:?]
	at azd.b(SourceFile:99) [1.9.jar:?]
	at net.minecraft.server.MinecraftServer.a(SourceFile:193) [1.9.jar:?]
	at byn.a(SourceFile:70) [1.9.jar:?]
	at byn.j(SourceFile:130) [1.9.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:427) [1.9.jar:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[20:50:27] [Server thread/ERROR]: Exception reading C:\Users\Paul\AppData\Roaming\.minecraft\saves\New World-\level.dat
java.util.zip.ZipException: Not in GZIP format
	at java.util.zip.GZIPInputStream.readHeader(GZIPInputStream.java:165) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:79) ~[?:1.8.0_25]
	at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:91) ~[?:1.8.0_25]
	at dx.a(SourceFile:24) ~[1.9.jar:?]
	at azg.a(SourceFile:82) [1.9.jar:?]
	at azf.d(SourceFile:99) [1.9.jar:?]
	at byn.a(SourceFile:78) [1.9.jar:?]
	at byn.j(SourceFile:130) [1.9.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:427) [1.9.jar:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
[20:50:27] [Server thread/INFO]: Preparing start region for level 0
[20:50:28] [Server thread/INFO]: Preparing spawn area: 5%
[20:50:29] [Server thread/INFO]: Preparing spawn area: 78%
[20:50:30] [Server thread/INFO]: Cid21dtx[local:E:fa22062a] logged in with entity id 53 at (851.2886627282845, 66.0, 801.2518363039796)
[20:50:30] [Server thread/INFO]: Cid21dtx joined the game
[20:50:30] [Server thread/ERROR]: Chunk file at 49,44 is in the wrong location; relocating. (Expected 49, 44, got 50, 47)
[20:50:30] [Server thread/WARN]: Wrong location! (50, 47) should be (49, 44), za['Zombie'/123, l='New World', x=809.50, y=33.00, z=761.50]
[20:50:30] [Server thread/WARN]: Tried to add entity Zombie but it was marked as removed already
[20:50:30] [Server thread/ERROR]: Chunk file at 50,46 is in the wrong location; relocating. (Expected 50, 46, got 53, 54)
[20:50:30] [Server thread/WARN]: Wrong location! (53, 54) should be (50, 46), za['Zombie'/156, l='New World', x=863.48, y=64.00, z=876.76]
[20:50:30] [Server thread/WARN]: Tried to add entity Zombie but it was marked as removed already
[20:50:31] [Server thread/ERROR]: Chunk file at 51,47 is in the wrong location; relocating. (Expected 51, 47, got 52, 52)
[20:50:31] [Server thread/WARN]: Wrong location! (52, 52) should be (51, 47), yi['Creeper'/171, l='New World', x=837.50, y=15.00, z=839.50]
[20:50:31] [Server thread/WARN]: Wrong location! (52, 52) should be (51, 47), yi['Creeper'/172, l='New World', x=835.50, y=15.00, z=834.50]
[20:50:31] [Server thread/WARN]: Wrong location! (52, 52) should be (51, 47), yw['Skeleton'/173, l='New World', x=837.50, y=15.00, z=843.50]

migrated 2016-03-17T02:07:40Z

I'm sorry, but what exactly does that mean? Why did it generate 2 new chunks like that and move the section of the wall away? I have had a lot of strange things happen in this game but nothing like that. Lol, I don't really speak java script......

kumasasa 2016-03-17T20:08:04Z

Something has damaged the chunk files. Either the game itself or something from outside (bad hard disk, bad SSD, etc..), but what that was cannout be found out from the log files or the world files.

_{BTW: That's}_Java_{, not}_JavaScript_{. Both share only the name but nothing else...}