A busy rednet causes deadlocks

At the moment, I can't start my FTB server at all. As soon as all the startup stuff runs, it goes dead and doesn't respond to logins or console commands. I attached the Java debugger to it and saw many threads, a few of which were in the "waiting in a monitor" state. I've attached some of the debugger info below. It looks to me like wireless modem code is deadlocking the main server thread (notice the lock info at the very bottom).

Several people are using ComputerCraft for various things on the server and I don't know yet what particular program is triggering this. However, I have a build that uses about 20 turtles coordinating with each other over rednet, and the protocol can be rather chatty, so that may be the source. Odd thing is, even if I disable chunk loading in Forge, the server still won't start. There have got to be very few if any computers within the always-loaded area at spawn, so I don't understand where the 200 Lua threads are coming from.

What I really need is a way to start the server with all Lua VMs shutdown. Can that be done?

Initializing jdb ...
>
> threads
Group system:
  (java.lang.ref.Reference$ReferenceHandler)0x21c3 Reference Handler			cond. waiting
  (java.lang.ref.Finalizer$FinalizerThread)0x21c4  Finalizer					cond. waiting
  (java.lang.Thread)0x21c5						 Signal Dispatcher			running
  (java.lang.Thread)0x21c6						 Keep-Alive-SocketCleaner	 cond. waiting
Group main:
  (java.lang.Thread)0x21c8						 Thread-1					 cond. waiting
  (java.util.TimerThread)0x21c9					Snooper Timer				cond. waiting
  (hp)0x21ca									   Thread-3					 sleeping
  (fy)0x21cb									   Server thread				waiting in a monitor
  (java.lang.Thread)0x21cc						 DestroyJavaVM				running
  (hq)0x21cd									   Thread-5					 running
  (java.util.TimerThread)0x21ce					Immibis Core background task cond. waiting
  (java.lang.Thread)0x21cf						 Thread-10					sleeping
  (java.lang.Thread)0x21d0						 TC Aura Calculation Thread   cond. waiting
  (java.lang.Thread)0x21d1						 TC Aura Deletion Thread	  cond. waiting
  (java.lang.Thread)0x21d2						 TC Aura Update Thread		cond. waiting
  (hu)0x21d3									   Listen thread				running
  (java.lang.Thread)0x21d4						 Thread-19					waiting in a monitor
  (java.lang.Thread)0x21d5						 Coroutine-1				  cond. waiting
  (java.lang.Thread)0x21d6						 Coroutine-2				  cond. waiting
  (java.lang.Thread)0x21d7						 Coroutine-3				  cond. waiting
  (java.lang.Thread)0x21d8						 Coroutine-4				  cond. waiting
  (java.lang.Thread)0x21d9						 Coroutine-5				  cond. waiting
  (java.lang.Thread)0x21da						 Coroutine-6				  cond. waiting
  (java.lang.Thread)0x21db						 Coroutine-7				  cond. waiting
  (java.lang.Thread)0x21dc						 Coroutine-8				  cond. waiting
  (java.lang.Thread)0x21dd						 Coroutine-9				  cond. waiting
  (java.lang.Thread)0x21de						 Coroutine-10				 cond. waiting
  (java.lang.Thread)0x21df						 Coroutine-11				 cond. waiting
  (java.lang.Thread)0x21e0						 Coroutine-12				 cond. waiting
  (java.lang.Thread)0x21e1						 Coroutine-13				 cond. waiting
  (java.lang.Thread)0x21e2						 Coroutine-14				 cond. waiting
  (java.lang.Thread)0x21e3						 Coroutine-15				 cond. waiting
  (java.lang.Thread)0x21e4						 Coroutine-16				 cond. waiting
  (java.lang.Thread)0x21e5						 Coroutine-17				 cond. waiting
  (java.lang.Thread)0x21e6						 Coroutine-18				 cond. waiting
  (java.lang.Thread)0x21e7						 Coroutine-19				 cond. waiting
  (java.lang.Thread)0x21e8						 Coroutine-20				 cond. waiting
  (java.lang.Thread)0x21e9						 Coroutine-21				 cond. waiting
  (java.lang.Thread)0x21ea						 Coroutine-22				 cond. waiting
  (java.lang.Thread)0x21eb						 Coroutine-23				 cond. waiting
  (java.lang.Thread)0x21ec						 Coroutine-24				 cond. waiting
  (java.lang.Thread)0x21ed						 Coroutine-25				 cond. waiting
  (java.lang.Thread)0x21ee						 Coroutine-26				 cond. waiting
  (java.lang.Thread)0x21ef						 Coroutine-27				 cond. waiting
  (java.lang.Thread)0x21f0						 Coroutine-28				 cond. waiting
  (java.lang.Thread)0x21f1						 Coroutine-29				 cond. waiting
  (java.lang.Thread)0x21f2						 Coroutine-30				 waiting in a monitor
  (java.lang.Thread)0x21f3						 Coroutine-31				 cond. waiting
  (java.lang.Thread)0x21f4						 Coroutine-32				 cond. waiting
  (java.lang.Thread)0x21f5						 Coroutine-33				 cond. waiting
  (java.lang.Thread)0x21f6						 Coroutine-34				 cond. waiting
  (java.lang.Thread)0x21f7						 Coroutine-35				 cond. waiting
  (java.lang.Thread)0x21f8						 Coroutine-36				 cond. waiting
  (java.lang.Thread)0x21f9						 Coroutine-37				 cond. waiting
  (java.lang.Thread)0x21fa						 Coroutine-38				 cond. waiting
  (java.lang.Thread)0x21fb						 Coroutine-39				 cond. waiting
  (java.lang.Thread)0x21fc						 Coroutine-40				 cond. waiting
  (java.lang.Thread)0x21fd						 Coroutine-41				 cond. waiting
  (java.lang.Thread)0x21fe						 Coroutine-42				 cond. waiting
  (java.lang.Thread)0x21ff						 Coroutine-43				 cond. waiting
  (java.lang.Thread)0x2200						 Coroutine-44				 cond. waiting
  (java.lang.Thread)0x2201						 Coroutine-45				 cond. waiting
  (java.lang.Thread)0x2202						 Coroutine-46				 cond. waiting
  (java.lang.Thread)0x2203						 Coroutine-47				 cond. waiting
  (java.lang.Thread)0x2204						 Coroutine-48				 cond. waiting
  (java.lang.Thread)0x2205						 Coroutine-49				 cond. waiting
  (java.lang.Thread)0x2206						 Coroutine-50				 cond. waiting
  (java.lang.Thread)0x2207						 Coroutine-51				 cond. waiting
  (java.lang.Thread)0x2208						 Coroutine-52				 cond. waiting
  (java.lang.Thread)0x2209						 Coroutine-53				 cond. waiting
  (java.lang.Thread)0x220a						 Coroutine-54				 cond. waiting
  (java.lang.Thread)0x220b						 Coroutine-55				 cond. waiting
  (java.lang.Thread)0x220c						 Coroutine-56				 cond. waiting
  (java.lang.Thread)0x220d						 Coroutine-57				 cond. waiting
  (java.lang.Thread)0x220e						 Coroutine-58				 cond. waiting
  (java.lang.Thread)0x220f						 Coroutine-59				 cond. waiting
  (java.lang.Thread)0x2210						 Coroutine-60				 cond. waiting
  (java.lang.Thread)0x2211						 Coroutine-61				 cond. waiting
  (java.lang.Thread)0x2212						 Coroutine-62				 cond. waiting
  (java.lang.Thread)0x2213						 Coroutine-63				 cond. waiting
  (java.lang.Thread)0x2214						 Coroutine-64				 cond. waiting
  (java.lang.Thread)0x2215						 Coroutine-65				 cond. waiting
  (java.lang.Thread)0x2216						 Coroutine-66				 cond. waiting
  (java.lang.Thread)0x2217						 Coroutine-67				 cond. waiting
  (java.lang.Thread)0x2218						 Coroutine-68				 cond. waiting
  (java.lang.Thread)0x2219						 Coroutine-69				 cond. waiting
  (java.lang.Thread)0x221a						 Coroutine-70				 cond. waiting
  (java.lang.Thread)0x221b						 Coroutine-71				 cond. waiting
  (java.lang.Thread)0x221c						 Coroutine-72				 cond. waiting
  (java.lang.Thread)0x221d						 Coroutine-73				 cond. waiting
  (java.lang.Thread)0x221e						 Coroutine-74				 waiting in a monitor
  (java.lang.Thread)0x221f						 Coroutine-75				 cond. waiting
  (java.lang.Thread)0x2220						 Coroutine-76				 cond. waiting
  (java.lang.Thread)0x2221						 Coroutine-77				 cond. waiting
  (java.lang.Thread)0x2222						 Coroutine-78				 cond. waiting
  (java.lang.Thread)0x2223						 Coroutine-79				 cond. waiting
  (java.lang.Thread)0x2224						 Coroutine-80				 cond. waiting
  (java.lang.Thread)0x2225						 Coroutine-81				 cond. waiting
  (java.lang.Thread)0x2226						 Coroutine-82				 cond. waiting
  (java.lang.Thread)0x2227						 Coroutine-83				 cond. waiting
  (java.lang.Thread)0x2228						 Coroutine-84				 cond. waiting
  (java.lang.Thread)0x2229						 Coroutine-85				 cond. waiting
  (java.lang.Thread)0x222a						 Coroutine-86				 cond. waiting
  (java.lang.Thread)0x222b						 Coroutine-87				 cond. waiting
  (java.lang.Thread)0x222c						 Coroutine-88				 cond. waiting
  (java.lang.Thread)0x222d						 Coroutine-89				 cond. waiting
  (java.lang.Thread)0x222e						 Coroutine-90				 cond. waiting
  (java.lang.Thread)0x222f						 Coroutine-91				 cond. waiting
  (java.lang.Thread)0x2230						 Coroutine-92				 cond. waiting
  (java.lang.Thread)0x2231						 Coroutine-93				 cond. waiting
  (java.lang.Thread)0x2232						 Coroutine-94				 cond. waiting
  (java.lang.Thread)0x2233						 Coroutine-95				 cond. waiting
  (java.lang.Thread)0x2234						 Coroutine-96				 cond. waiting
  (java.lang.Thread)0x2235						 Coroutine-97				 cond. waiting
  (java.lang.Thread)0x2236						 Coroutine-98				 cond. waiting
  (java.lang.Thread)0x2237						 Coroutine-99				 cond. waiting
  (java.lang.Thread)0x2238						 Coroutine-100				cond. waiting
  (java.lang.Thread)0x2239						 Coroutine-101				cond. waiting
  (java.lang.Thread)0x223a						 Coroutine-102				cond. waiting
  (java.lang.Thread)0x223b						 Coroutine-103				cond. waiting
  (java.lang.Thread)0x223c						 Coroutine-104				cond. waiting
  (java.lang.Thread)0x223d						 Coroutine-105				cond. waiting
  (java.lang.Thread)0x223e						 Coroutine-106				cond. waiting
  (java.lang.Thread)0x223f						 Coroutine-107				cond. waiting
  (java.lang.Thread)0x2240						 Coroutine-108				cond. waiting
  (java.lang.Thread)0x2241						 Coroutine-109				cond. waiting
  (java.lang.Thread)0x2242						 Coroutine-110				cond. waiting
  (java.lang.Thread)0x2243						 Coroutine-111				cond. waiting
  (java.lang.Thread)0x2244						 Coroutine-112				cond. waiting
  (java.lang.Thread)0x2245						 Coroutine-113				cond. waiting
  (java.lang.Thread)0x2246						 Coroutine-114				cond. waiting
  (java.lang.Thread)0x2247						 Coroutine-115				cond. waiting
  (java.lang.Thread)0x2248						 Coroutine-116				cond. waiting
  (java.lang.Thread)0x2249						 Coroutine-117				cond. waiting
  (java.lang.Thread)0x224a						 Coroutine-118				cond. waiting
  (java.lang.Thread)0x224b						 Coroutine-119				cond. waiting
  (java.lang.Thread)0x224c						 Coroutine-120				cond. waiting
  (java.lang.Thread)0x224d						 Coroutine-121				cond. waiting
  (java.lang.Thread)0x224e						 Coroutine-122				cond. waiting
  (java.lang.Thread)0x224f						 Coroutine-123				cond. waiting
  (java.lang.Thread)0x2250						 Coroutine-124				cond. waiting
  (java.lang.Thread)0x2251						 Coroutine-125				cond. waiting
  (java.lang.Thread)0x2252						 Coroutine-126				cond. waiting
  (java.lang.Thread)0x2253						 Coroutine-127				cond. waiting
  (java.lang.Thread)0x2254						 Coroutine-128				cond. waiting
  (java.lang.Thread)0x2255						 Coroutine-129				cond. waiting
  (java.lang.Thread)0x2256						 Thread-196				   waiting in a monitor
  (java.lang.Thread)0x2257						 Thread-197				   waiting in a monitor
  (java.lang.Thread)0x2258						 Thread-198				   waiting in a monitor
  (java.lang.Thread)0x2259						 Thread-203				   cond. waiting
> suspend
All threads suspended.
> where 0x21cb
  [1] dan200.computer.shared.WirelessModemPeripheral.pollChanged (WirelessModemPeripheral.java:90)
  [2] dan200.turtle.shared.TurtleModem$Peripheral.update (TurtleModem.java:72)
  [3] dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper.update (PeripheralAPI.java:105)
  [4] dan200.computer.core.apis.PeripheralAPI.advance (PeripheralAPI.java:354)
  [5] dan200.computer.core.Computer.advance (Computer.java:560)
  [6] dan200.computer.shared.NetworkedComputerHelper.update (NetworkedComputerHelper.java:111)
  [7] dan200.turtle.shared.TileEntityTurtle.g (TileEntityTurtle.java:2,350)
  [8] yc.h (World.java:2,153)
  [9] in.h (WorldServer.java:516)
  [10] net.minecraft.server.MinecraftServer.r (MinecraftServer.java:680)
  [11] ho.r (DedicatedServer.java:269)
  [12] net.minecraft.server.MinecraftServer.q (MinecraftServer.java:599)
  [13] net.minecraft.server.MinecraftServer.run (MinecraftServer.java:497)
  [14] fy.run (SourceFile:849)
Server thread[1] where 0x21d4
  [1] dan200.computer.core.Computer.abort (Computer.java:283)
  [2] dan200.computer.core.ComputerThread$1.run (ComputerThread.java:92)
  [3] java.lang.Thread.run (null)
Thread-19[1] where 0x21f2
  [1] dan200.computer.core.apis.PeripheralAPI.callMethod (PeripheralAPI.java:414)
  [2] dan200.computer.core.LuaJLuaMachine$2.invoke (LuaJLuaMachine.java:304)
  [3] org.luaj.vm2.lib.VarArgFunction.call (null)
  [4] org.luaj.vm2.LuaClosure.execute (null)
  [5] org.luaj.vm2.LuaClosure.call (null)
  [6] org.luaj.vm2.LuaClosure.execute (null)
  [7] org.luaj.vm2.LuaClosure.call (null)
  [8] org.luaj.vm2.LuaClosure.execute (null)
  [9] org.luaj.vm2.LuaClosure.onInvoke (null)
  [10] org.luaj.vm2.LuaClosure.invoke (null)
  [11] org.luaj.vm2.LuaThread$State.run (null)
  [12] java.lang.Thread.run (null)
Coroutine-30[1] where 0x221e
  [1] dan200.computer.core.Computer.queueLuaEvent (Computer.java:1,064)
  [2] dan200.computer.core.Computer.access$300 (Computer.java:31)
  [3] dan200.computer.core.Computer$APIEnvironment.queueEvent (Computer.java:91)
  [4] dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper.queueEvent (PeripheralAPI.java:220)
  [5] dan200.computer.shared.WirelessModemPeripheral.receive (WirelessModemPeripheral.java:138)
  [6] dan200.computer.shared.WirelessModemPeripheral$SingleChannelReceiver.receive (WirelessModemPeripheral.java:50)
  [7] dan200.computer.shared.WirelessNetwork.tryTransmit (WirelessNetwork.java:87)
  [8] dan200.computer.shared.WirelessNetwork.transmit (WirelessNetwork.java:75)
  [9] dan200.computer.shared.WirelessModemPeripheral.callMethod (WirelessModemPeripheral.java:269)
  [10] dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper.call (PeripheralAPI.java:116)
  [11] dan200.computer.core.apis.PeripheralAPI.callMethod (PeripheralAPI.java:464)
  [12] dan200.computer.core.LuaJLuaMachine$2.invoke (LuaJLuaMachine.java:304)
  [13] org.luaj.vm2.LuaClosure.execute (null)
  [14] org.luaj.vm2.LuaClosure.call (null)
  [15] org.luaj.vm2.LuaClosure.execute (null)
  [16] org.luaj.vm2.LuaClosure.onInvoke (null)
  [17] org.luaj.vm2.TailcallVarargs.eval (null)
  [18] org.luaj.vm2.TailcallVarargs.arg1 (null)
  [19] org.luaj.vm2.LuaClosure.call (null)
  [20] org.luaj.vm2.LuaClosure.execute (null)
  [21] org.luaj.vm2.LuaClosure.call (null)
  [22] org.luaj.vm2.LuaClosure.execute (null)
  [23] org.luaj.vm2.LuaClosure.call (null)
  [24] org.luaj.vm2.LuaClosure.execute (null)
  [25] org.luaj.vm2.LuaClosure.call (null)
  [26] org.luaj.vm2.LuaClosure.execute (null)
  [27] org.luaj.vm2.LuaClosure.onInvoke (null)
  [28] org.luaj.vm2.LuaClosure.invoke (null)
  [29] org.luaj.vm2.LuaClosure.execute (null)
  [30] org.luaj.vm2.LuaClosure.onInvoke (null)
  [31] org.luaj.vm2.LuaClosure.invoke (null)
  [32] org.luaj.vm2.lib.BaseLib.pcall (null)
  [33] org.luaj.vm2.lib.BaseLib$BaseLibV.invoke (null)
  [34] org.luaj.vm2.LuaClosure.execute (null)
  [35] org.luaj.vm2.LuaClosure.onInvoke (null)
  [36] org.luaj.vm2.LuaClosure.invoke (null)
  [37] org.luaj.vm2.LuaClosure.execute (null)
  [38] org.luaj.vm2.LuaClosure.onInvoke (null)
  [39] org.luaj.vm2.LuaClosure.invoke (null)
  [40] org.luaj.vm2.LuaClosure.execute (null)
  [41] org.luaj.vm2.LuaClosure.onInvoke (null)
  [42] org.luaj.vm2.LuaClosure.invoke (null)
  [43] org.luaj.vm2.lib.BaseLib.pcall (null)
  [44] org.luaj.vm2.lib.BaseLib$BaseLibV.invoke (null)
  [45] org.luaj.vm2.LuaClosure.execute (null)
  [46] org.luaj.vm2.LuaClosure.onInvoke (null)
  [47] org.luaj.vm2.LuaClosure.invoke (null)
  [48] org.luaj.vm2.LuaClosure.execute (null)
  [49] org.luaj.vm2.LuaClosure.onInvoke (null)
  [50] org.luaj.vm2.TailcallVarargs.eval (null)
  [51] org.luaj.vm2.TailcallVarargs.arg1 (null)
  [52] org.luaj.vm2.LuaClosure.call (null)
  [53] org.luaj.vm2.LuaClosure.execute (null)
  [54] org.luaj.vm2.LuaClosure.onInvoke (null)
  [55] org.luaj.vm2.LuaClosure.invoke (null)
  [56] org.luaj.vm2.LuaClosure.execute (null)
  [57] org.luaj.vm2.LuaClosure.onInvoke (null)
  [58] org.luaj.vm2.LuaClosure.invoke (null)
  [59] org.luaj.vm2.lib.BaseLib.pcall (null)
  [60] org.luaj.vm2.lib.BaseLib$BaseLibV.invoke (null)
  [61] org.luaj.vm2.LuaClosure.execute (null)
  [62] org.luaj.vm2.LuaClosure.call (null)
  [63] org.luaj.vm2.LuaClosure.execute (null)
  [64] org.luaj.vm2.LuaClosure.onInvoke (null)
  [65] org.luaj.vm2.LuaClosure.invoke (null)
  [66] org.luaj.vm2.LuaThread$State.run (null)
  [67] java.lang.Thread.run (null)
Coroutine-74[1] where 0x2256
  [1] java.lang.Object.wait (native method)
  [2] java.lang.Object.wait (Object.java:503)
  [3] org.luaj.vm2.LuaThread$State.lua_resume (null)
  [4] org.luaj.vm2.LuaThread.resume (null)
  [5] org.luaj.vm2.lib.CoroutineLib.invoke (null)
  [6] dan200.computer.core.LuaJLuaMachine.handleEvent (LuaJLuaMachine.java:183)
  [7] dan200.computer.core.Computer$3.execute (Computer.java:1,086)
  [8] dan200.computer.core.ComputerThread$1$1.run (ComputerThread.java:72)
  [9] java.lang.Thread.run (null)
Thread-196[1] where 0x2257
  [1] java.lang.Object.wait (native method)
  [2] java.lang.Object.wait (Object.java:503)
  [3] org.luaj.vm2.LuaThread$State.lua_resume (null)
  [4] org.luaj.vm2.LuaThread.resume (null)
  [5] org.luaj.vm2.lib.CoroutineLib.invoke (null)
  [6] dan200.computer.core.LuaJLuaMachine.handleEvent (LuaJLuaMachine.java:183)
  [7] dan200.computer.core.Computer$3.execute (Computer.java:1,086)
  [8] dan200.computer.core.ComputerThread$1$1.run (ComputerThread.java:72)
  [9] java.lang.Thread.run (null)
Thread-197[1] where 0x2258
  [1] java.lang.Object.wait (native method)
  [2] java.lang.Object.wait (Object.java:503)
  [3] org.luaj.vm2.LuaThread$State.lua_resume (null)
  [4] org.luaj.vm2.LuaThread.resume (null)
  [5] org.luaj.vm2.lib.CoroutineLib.invoke (null)
  [6] dan200.computer.core.LuaJLuaMachine.handleEvent (LuaJLuaMachine.java:183)
  [7] dan200.computer.core.Computer$3.execute (Computer.java:1,086)
  [8] dan200.computer.core.ComputerThread$1$1.run (ComputerThread.java:72)
  [9] java.lang.Thread.run (null)
Thread-198[1]
Thread-198[1] threadlocks 0x21cb
Monitor information for thread Server thread:
  Owned monitor: instance of dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper[6] (id=8794)
  Owned monitor: instance of dan200.computer.core.Computer(id=8795)
  Owned monitor: instance of java.util.ArrayList(id=8796)
   Waiting for monitor: instance of dan200.turtle.shared.TurtleModem$Peripheral(id=8797)
Server thread[1] threadlocks 0x221e
Monitor information for thread Coroutine-74:
  Owned monitor: instance of dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper(id=8798)
  Owned monitor: instance of dan200.turtle.shared.TurtleModem$Peripheral(id=8797)
  Owned monitor: instance of dan200.computer.shared.WirelessNetwork(id=8799)
  Owned monitor: instance of dan200.turtle.shared.TurtleModem$Peripheral(id=8800)
  Owned monitor: instance of dan200.computer.core.apis.PeripheralAPI$PeripheralWrapper(id=8801)
  Owned monitor: instance of dan200.computer.core.LuaJLuaMachine$2(id=8802)
  Owned monitor: instance of org.luaj.vm2.LuaThread$State(id=8803)
   Waiting for monitor: instance of dan200.computer.core.Computer(id=8795)
Coroutine-74[1]

I managed to start my server by setting all the wireless modem ranges to zero in the config file. Obviously not an ideal solution though. Let me know if I can provide any more info.

Long existing bug

http://www.computerc...turtle-program/

Good luck. I really hope something comes of this.

I wish there was an option to disable threading for computercraft. It seems harms far more than it does good.

You have absolutely no idea what you're talking about.

Or do I?

Well, be that as it may. Basically, just wanted to link the old post to this one.

This is a known bug, we have logs and are looking into it. We hope to have a fix soon.

The reason I said you have no idea what you are talking about, is because it isn't possible for us to remove threads - and even if we could, it would be an absolutely retarded thing to do.

I never meant for you to implement computercraft without threads. I realize that that would probably mean rewriting good parts. However, if there were no threads, then there would be no deadlock.

As a quick and dirty fix, you could drastically increase the critical sections, or even make all synchronized calls use the same object? Sure, it would get rid of concurrency, but also the deadlocks. This kind of behavior would be possible via config flag?

Putting the amount of work to allow that as an option, would be the same amount of work as fixing the issues. Doesn't make much sense.

Fixing is of course preferable. Just wanted to throw some ideas out there, since it has been a while and it seemed like it was not that easy to fix.

The big issue we have had in fixing it is not being able to reproduce it. We now can, so a fix should be forthcoming.

Great! Can't wait to be able to use rednet again.

I believe this may also be the cause of my problems…
http://pastebin.com/nUEYk1pc

Is there a workaround for this I can use until the fix is out? Like, something I can do or not do in my code to avoid it?

last_username, on 01 April 2013 - 12:07 AM said:

Is there a workaround for this I can use until the fix is out? Like, something I can do or not do in my code to avoid it?

Send less rednet messages… and if you cannot miss out on messages maybe collect them together and send them in one "packet" every second or so, instead of spamming multiple times a second…

theoriginalbit, on 01 April 2013 - 12:32 AM said:

last_username, on 01 April 2013 - 12:07 AM said:

Is there a workaround for this I can use until the fix is out? Like, something I can do or not do in my code to avoid it?

Send less rednet messages… and if you cannot miss out on messages maybe collect them together and send them in one "packet" every second or so, instead of spamming multiple times a second…

I have about 20 computers that need to coordinate with each other. They don't need to be fast, but I'm not sure how I can space the traffic out since none of them know when the others are going to transmit. Since the CC devs know how to reproduce this bug now, I was hoping they could explain specifically what triggers it. Perhaps there is some kind of guard I can add to my code that prevents the deadlock?