Bossert David

I am still experiencing this bug on 1.7.4

Got exactly the same error showing in the latest.log file.

(This error does not affect the game in any way)

Actually it does:
When Minecraft is minimized for a long time e.g. while farming, the time in minecraft stands still. Upon maximizing, minecraft is fast forwarding the time. this is observed by several day/night cycles within a minute and in addition, everything written in chat after maximizing does not appear. after it catches up, the game seems to run smoothly again and also messages priorly written in chat appear.

during this 'catching up' of minecraft, the client responds promptly on inputs like pressing esc or showing debug screen.

I can reliably reproduce this bug on our server by driving in a minecart for a longer distance.

Watching the debug screen while driving shows a huge amount of chunk updates (up to 640). Also, the longer the distance the lower the fps drop, ultimately lagging (sever block lag and sound lag) for every player on the server before crashing. After a restart, the server works fine again.