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MC-86275

Infinite "Loading World" Loop

I logged out of a world while falling and when I tried to quickly rejoin I was repeatedly pressing right click (in bursts) to block any remaining fall damage but somehow triggered an infinite loop of "Loading World" and "Generating Terrain". This started 30-45 minutes before posting this and has subsequently caused the game to freeze and forced me to close the game with task manager. It might be worth noting that the game launched with an error already reported in [MCL-1905].


Before anyone asks me to manually trigger a crash just know that I've tried, and failed, to do so by means of F3+C.
Attached is the log from this event.
The log is too big to be attached so a GZip-ed version is attached instead.

(!) *BE WARNED*

This file is absolutely MASSIVE for a plain text file, only download and extract it if you are willing to read 20MB of text.

Attachments

Comments 6

[19:34:20] [Server thread/INFO]: husky2490[local:E:6acf83d8] logged in with entity id 65914 at (-231.7282878293518, 63.4771841053212, 92.48942676914649)
[19:34:20] [Server thread/INFO]: husky2490 joined the game
[19:34:26] [Server thread/ERROR]: Couldn't save chunk; already in use by another instance of Minecraft?
agi: The save is being accessed from another location, aborting
	at axh.c(SourceFile:75) ~[15w33c.jar:?]
	at agh.K(SourceFile:2589) ~[15w33c.jar:?]
	at aqq.a(SourceFile:93) ~[15w33c.jar:?]
	at lj.b(SourceFile:156) [15w33c.jar:?]
	at lj.d(SourceFile:228) [15w33c.jar:?]
	at lk.d(SourceFile:187) [15w33c.jar:?]
	at net.minecraft.server.MinecraftServer.D(SourceFile:617) [15w33c.jar:?]
	at net.minecraft.server.MinecraftServer.C(SourceFile:553) [15w33c.jar:?]
	at buj.C(SourceFile:152) [15w33c.jar:?]
	at net.minecraft.server.MinecraftServer.run(SourceFile:457) [15w33c.jar:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_25]

is indirectly caused by

[18:34:30] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 36523ms behind, skipping 730 tick(s)
[18:42:41] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2160ms behind, skipping 43 tick(s)
[18:43:05] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 10800ms behind, skipping 216 tick(s)
[18:43:26] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 10928ms behind, skipping 218 tick(s)
[18:43:38] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5808ms behind, skipping 116 tick(s)
[18:43:57] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 9076ms behind, skipping 181 tick(s)
[18:44:11] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6748ms behind, skipping 134 tick(s)
[18:44:27] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 7741ms behind, skipping 154 tick(s)
[18:44:47] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 8841ms behind, skipping 176 tick(s)
[18:45:00] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5011ms behind, skipping 100 tick(s)
[18:45:19] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6860ms behind, skipping 137 tick(s)
[18:45:39] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 8306ms behind, skipping 166 tick(s)
[18:45:52] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4417ms behind, skipping 88 tick(s)
[18:46:13] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 6447ms behind, skipping 128 tick(s)

and

[18:28:07] [Server thread/INFO]: Preparing start region for level 0
[18:28:08] [Server thread/INFO]: Preparing spawn area: 0%
...
[18:29:08] [Server thread/INFO]: Preparing spawn area: 99%

Why did it take so long to generate the world ? Was it an amplified / custom world ? Is your computer capable of running such ? (CPU, RAM ?)

On my computer, 30 fps is considered slightly above normal under most circumstances. The world I tried to log back into was default and was generated earlier that session. Upon scanning through the log, I noticed Minecraft had started multiple attempts to load a very laggy custom world initially generated in 15w32c. I suspect the cause is that the menu from MC-185 is actually functional and can be used to load multiple world instances within a single window.

Is this still an issue in 15w44b? If so, please explain the issue in detail and provide steps to reproduce it.

Ticket resolved as incomplete, because no answer in a reasonable amount of time (1+ year), if it still happens, please update the ticket.

husky2490

(Unassigned)

Unconfirmed

loading

Minecraft 15w33c

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