[23:45:16] [Server thread/INFO] [minecraft/IntegratedServer]: Saving and pausing game...
[23:45:16] [Server thread/INFO] [minecraft/MinecraftServer]: Saving chunks for level 'testing'/overworld
[23:45:18] [Server thread/WARN] [minecraft/MinecraftServer]: Can't keep up! Did the system time change, or is the server overloaded? Running 2105ms behind, skipping 42 tick(s)
[23:46:59] [Server thread/INFO] [minecraft/IntegratedServer]: Saving and pausing game...
[23:46:59] [Server thread/INFO] [minecraft/MinecraftServer]: Saving chunks for level 'testing'/overworld
[23:47:00] [Server thread/INFO] [minecraft/MinecraftServer]: Stopping server
[23:47:00] [Server thread/INFO] [minecraft/MinecraftServer]: Saving players
[23:47:00] [Server thread/INFO] [minecraft/NetHandlerPlayServer]: barkingkitty lost connection: Disconnected
[23:47:00] [Server thread/INFO] [minecraft/MinecraftServer]: barkingkitty left the game
[23:47:00] [Server thread/INFO] [minecraft/NetHandlerPlayServer]: Stopping singleplayer server as player logged out
[23:47:00] [Server thread/INFO] [minecraft/MinecraftServer]: Saving worlds
[23:47:00] [Server thread/INFO] [minecraft/MinecraftServer]: Saving chunks for level 'testing'/overworld
[23:47:01] [Server thread/INFO] [FML]: Unloading dimension 0
[23:47:01] [Server thread/INFO] [FML]: Applying holder lookups
[23:47:01] [Server thread/INFO] [FML]: Holder lookups applied
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f5750189e09, pid=946516, tid=0x00007f572b7ff6c0
#
# JRE version: OpenJDK Runtime Environment (8.0_452-b09) (build 1.8.0_452-b09)
# Java VM: OpenJDK 64-Bit Server VM (25.452-b09 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# C [libGLdispatch.so.0+0x2e09]
#
# Core dump written. Default location: /home/jaimie/Minecraft/multimcTar/MultiMC/instances/rgenTest/.minecraft/core or core.946516
#
# An error report file with more information is saved as:
# /home/jaimie/Minecraft/multimcTar/MultiMC/instances/rgenTest/.minecraft/hs_err_pid946516.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
Process crashed with exit code 6 (0x6).
Please note that usually neither the exit code, nor its description are enough to diagnose issues!
Always upload the entire log and not just the exit code.