Client thread indefinite park

[cyberpwnn]

Client thread stack trace looks like this

sun.misc.Unsafe.park(boolean, long)
java.util.concurrent.locks.LockSupport.park(java.lang.Object) (line: 175)
java.util.concurrent.FutureTask.awaitDone(boolean, long) (line: 429)
java.util.concurrent.FutureTask.get() (line: 191)
com.google.common.util.concurrent.Uninterruptibles.getUninterruptibly(java.util.concurrent.Future) (line: 142)
com.google.common.util.concurrent.Futures.getUnchecked(java.util.concurrent.Future) (line: 1312)
net.minecraft.server.integrated.IntegratedServer.func_71263_m() (line: 536)
net.minecraft.client.Minecraft.func_71353_a(net.minecraft.client.multiplayer.WorldClient, java.lang.String) (line: 2448)
net.minecraft.client.Minecraft.func_71403_a(net.minecraft.client.multiplayer.WorldClient) (line: 2430)
net.minecraft.client.Minecraft.resetGameState() (line: 5288)
net.minecraft.client.Minecraft.func_71398_f() (line: 5194)
net.minecraft.client.Minecraft.func_99999_d() (line: 5142)

Everything freezes. Only happens with loliasm installed, It seems to happen when generating a lot of chunks and something in that chunk is causing it. Setting everything in the config to false fixed it, do you know what option in loliasm could be related to this stack trace caused by loading / generating a chunk? Same kind of thing happens serverside though so there mught be multiple issues

[Rongmario]

That looks like a deadlock in the scheduled tasks trying to run, can you try turning off crashReportImprovements?