Board Thread:Bug Reports/@comment-26168781-20161224153634/@comment-25330335-20161224161003

Let me point out a few things. What you posted above is not a bug report (that is what you post on the bug reports forum, usually bugs aren't a trigger of a crash, especially one of this nature), nor a crash report (The log that the game spits out if something dangerous is detected in-game and Minecraft crashes itself to avoid bad things happening). If you didn't get a crash report, then the game did not crash. What you posted is the last four lines of a log file, which is generated every time you play, so that you can see what is happening in-game from a text terminal.

I really have no idea why you're crashing, because I don't have a larger log file or an actual crash report. See if you can find one of those things. I'd say don't do anything drastic (aka, re-install MC) until you've found one of those things. Also use pastebin for the log or crash report.