Definitely deadlocked:
"Coroutine-2640" Id=22947 BLOCKED on dan200.computer.core.Computer@4fcd9b13 owned by "Tick Thread for world/Overworld - 3" Id=53
        at dan200.computer.core.Computer.queueLuaEvent(Computer.java:1056)
        -  blocked on dan200.computer.core.Computer@4fcd9b13
        at dan200.computer.core.Computer.access$300(Computer.java:26)
        at dan200.computer.core.Computer$APIEnvironment.queueEvent(Computer.java:86)
        at dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper.queueEvent(PeripheralAPI.java:215)
        -  locked dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper@2a7c7471
        at dan200.computer.shared.WirelessModemPeripheral.receive(WirelessModemPeripheral.java:105)
        -  locked dan200.turtle.shared.TurtleModem$Peripheral@50c0bc81
        at dan200.computer.shared.WirelessNetwork.tryTransmit(WirelessNetwork.java:78)
        at dan200.computer.shared.WirelessNetwork.broadcast(WirelessNetwork.java:56)
        -  locked dan200.computer.shared.WirelessNetwork@1d97e292
        at dan200.computer.shared.WirelessModemPeripheral.callMethod(WirelessModemPeripheral.java:189)
        -  locked dan200.turtle.shared.TurtleModem$Peripheral@5e9bee6b
        ...


"Tick Thread for world/Overworld - 3" Id=53 BLOCKED on dan200.turtle.shared.TurtleModem$Peripheral@50c0bc81 owned by "Coroutine-2640" Id=22947
        at dan200.computer.shared.WirelessModemPeripheral.pollChanged(WirelessModemPeripheral.java:50)
        -  blocked on dan200.turtle.shared.TurtleModem$Peripheral@50c0bc81
        at dan200.turtle.shared.TurtleModem$Peripheral.update(TurtleModem.java:66)
        at dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper.update(PeripheralAPI.java:100)
        at dan200.computer.core.apis.PeripheralAPI.advance(PeripheralAPI.java:349)
        -  locked [Ldan200.computer.core.apis.PeripheralAPI$PeripheralWrapper;@43802553
        at dan200.computer.core.Computer.advance(Computer.java:552)
        -  locked java.util.ArrayList@12128ec4
        -  locked dan200.computer.core.Computer@4fcd9b13
        at dan200.computer.shared.NetworkedComputerHelper.update(NetworkedComputerHelper.java:112)
        at dan200.turtle.shared.TileEntityTurtle.g(TileEntityTurtle.java:2368)
        at me.nallar.tickthreading.minecraft.tickregion.TileEntityTickRegion.doTick(TileEntityTickRegion.java:75)
        ...