Console spam: Unexpected packet during modded negotiation

[14mRh4X0r]

Sometimes, when connecting to a FML server with a vanilla client, FML keeps spamming about unexpected packets during "modded negotiation", while the client is already connected and playing.

I haven't been able to reliably reproduce this, but it happens from time to time.

Example line:

[13:59:39] [Netty Server IO #4/INFO] [FML]: Unexpected packet during modded negotiation - assuming vanilla or keepalives : net.minecraft.network.play.client.C03PacketPlayer$C04PacketPlayerPosition

[LexManos]

This shouldnt happen unless somehow the vanilla client sends packets out of order.
Post the full logs so i can see what order things are coming in.
Also it should skip past and only do it one...

[MarkJeronimus]

I'm using forge-1.8-11.14.1.1309-universal.jar for a generic server where everyone is vanilla. The only plug-in (mod) is Dynmap-2.1-forge-1.8.0.jar

Server log 1 (debug info etc) 3.6Mb zipped 100kb
https://dl.dropboxusercontent.com/u/13260068/fml-server-latest2.zip

Server log 2 (chats etc) latest.txt

[20:38:52] [User Authenticator #6/INFO]: UUID of player PursuedByBears is 68b43676-362a-43be-9399-b027af3c1d8d
[20:38:52] [Server thread/INFO]: PursuedByBears[/143.176.149.178:59614] logged in with entity id 496538 at (-313.38421789209997, 80.0, -569.2875876501437)
[20:38:52] [Server thread/INFO]: PursuedByBears joined the game
[20:43:45] [User Authenticator #7/INFO]: UUID of player youtakun is 43f517c0-028a-437b-b1e2-daf140c80ff1
[20:43:45] [Server thread/INFO]: youtakun[/217.122.174.9:4018] logged in with entity id 503297 at (-318.74350434922604, 73.0, -161.20192339953545)
[20:43:45] [Server thread/INFO]: youtakun joined the game
[20:44:06] [Server thread/INFO]: <youtakun> everything fine?
[20:44:10] [Server thread/INFO]: <PursuedByBears> yep!
[20:44:18] [Server thread/INFO]: <PursuedByBears> looks like your server works great
[20:44:26] [Server thread/INFO]: <PursuedByBears> nice that you can see the map too now
[20:44:53] [Server thread/INFO]: <youtakun> the server gives 10-15 errors per second on my side sinds you joined
[20:45:08] [Server thread/INFO]: <PursuedByBears> really? That's strange.
[20:45:26] [Server thread/INFO]: <PursuedByBears> any idea what's happening?
[20:46:29] [Server thread/INFO]: <youtakun> i'm searching the internet, but its elusive and only appears randomly
[20:46:42] [Server thread/INFO]: <youtakun> and people who have it are usually stuck in the "logging in" screen
[20:46:52] [Server thread/INFO]: <PursuedByBears> weird
[20:48:41] [Server thread/INFO]: PursuedByBears lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[20:48:41] [Server thread/INFO]: PursuedByBears left the game
[20:54:37] [Server thread/INFO]: youtakun lost connection: TextComponent{text='Disconnected', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
[20:54:37] [Server thread/INFO]: youtakun left the game

[MarkJeronimus]

I found out that whenever this happens, nether portals send you to the wrong location, killing people, or getting them lost in the nether forever miles away from any portal.

For a full description, see http://www.minecraftforum.net/forums/support/server-support/2399373-serious-nether-portal-bug-player-spawns-at-same

Because of this new finding I like to change the bug severity to critical but I don't know how to do that as I'm quite new to Github. I understands that it has something to do with labels, but all I can find is a labels such as 'prio:high' but not how to actually add it.

[LexManos]

Find a way to reproduce this and post full logs and we can take a look at it.
But issue you linked is not this issue.