[root@localhost Debug]# mono ./KAELoadTesting.exe run -e http://XXX:2379/v2/keys/kae/ -i 127.0.0.1 -p 6678 -c 1000 -pa 1 -f demo1_0xFF.txt 
KAE Loading Test Tool [Version 1.0.0.0]
(c) 2016 KJFramework Community Team. Reserved all rights.


Performing some task... Done.
Transfering TCP messages to the remote end-point...* Assertion: should not be reached at sgen-scan-object.h:101

Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) object.__icall_wrapper_mono_gc_alloc_vector (intptr,intptr,intptr) <0xffffffff>
  at (wrapper alloc) object.AllocVector (intptr,intptr) <0xffffffff>
  at System.Collections.Concurrent.ConcurrentDictionary`2<TKey_REF, TValue_REF>.GrowTable (System.Collections.Concurrent.ConcurrentDictionary`2/Tables<TKey_REF, TValue_REF>,System.Collections.Generic.IEqualityComparer`1<T_REF>,bool,int) <0x00321>
  at System.Collections.Concurrent.ConcurrentDictionary`2<TKey_REF, TValue_REF>.TryAddInternal (TKey_REF,TValue_REF,bool,bool,TValue_REF&) <0x004b2>
  at System.Collections.Concurrent.ConcurrentDictionary`2<TKey_REF, TValue_REF>.TryAdd (TKey_REF,TValue_REF) <0x00047>
  at KJFramework.Net.Transaction.TransactionManager`1<T_REF>.Add (KJFramework.Net.Identities.TransactionIdentity,KJFramework.Net.Transaction.IMessageTransaction`1<T_REF>) <0x002e5>
  at KJFramework.ApplicationEngine.Proxies.MessageTransactionProxy`1<T_REF>.CreateTransaction (string,KJFramework.Net.Transaction.Objects.Protocols,System.TimeSpan,string,KJFramework.ApplicationEngine.Resources.KAEResourceUri,KJFramework.Net.Transaction.Enums.NetworkCommunicationTypes,string) <0x00970>
  at KJFramework.ApplicationEngine.Proxies.MessageTransactionProxy`1<T_REF>.CreateTransaction (string,KJFramework.Net.Transaction.Objects.Protocols,string,KJFramework.ApplicationEngine.Resources.KAEResourceUri,KJFramework.Net.Transaction.Enums.NetworkCommunicationTypes,string) <0x0005f>
  at KAELoadTesting.CalculatorProgram/<run>c__AnonStorey0.<>m__0 (int) <0x00295>
  at System.Threading.Tasks.Parallel/<ForWorker>c__AnonStorey3`1<T_REF>.<>m__1 () <0x0030a>
  at System.Threading.Tasks.Task.InnerInvoke () <0x0004c>
  at System.Threading.Tasks.Task.InnerInvokeWithArg (System.Threading.Tasks.Task) <0x00013>
  at System.Threading.Tasks.Task/<ExecuteSelfReplicating>c__AnonStorey0.<>m__0 (object) <0x001cc>
  at System.Threading.Tasks.Task.ExecuteSelfReplicating (System.Threading.Tasks.Task) <0x0012f>
  at System.Threading.Tasks.Task.Execute () <0x0003d>
  at System.Threading.Tasks.Task.ExecutionContextCallback (object) <0x0004e>
  at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x001c6>
  at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool) <0x00020>
  at System.Threading.Tasks.Task.ExecuteWithThreadLocal (System.Threading.Tasks.Task&) <0x00116>
  at System.Threading.Tasks.Task.ExecuteEntry (bool) <0x000f3>
  at System.Threading.Tasks.ThreadPoolTaskScheduler.TryExecuteTaskInline (System.Threading.Tasks.Task,bool) <0x0003f>
  at System.Threading.Tasks.TaskScheduler.TryRunInline (System.Threading.Tasks.Task,bool) <0x000ca>
  at System.Threading.Tasks.Task.InternalRunSynchronously (System.Threading.Tasks.TaskScheduler,bool) <0x000f8>
  at System.Threading.Tasks.Task.RunSynchronously (System.Threading.Tasks.TaskScheduler) <0x00027>
  at System.Threading.Tasks.Parallel.ForWorker<T_REF> (int,int,System.Threading.Tasks.ParallelOptions,System.Action`1<int>,System.Action`2<int, System.Threading.Tasks.ParallelLoopState>,System.Func`4<int, System.Threading.Tasks.ParallelLoopState, T_REF, T_REF>,System.Func`1<T_REF>,System.Action`1<T_REF>) <0x00622>
  at System.Threading.Tasks.Parallel.For (int,int,System.Action`1<int>) <0x00069>
  at KAELoadTesting.CalculatorProgram.run (KAELoadTesting.KAELoadingToolsArgs) <0x0075f>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object (object,intptr,intptr,intptr) <0xffffffff>
  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Reflection.MonoMethod.InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&) <0xffffffff>
  at System.Reflection.MonoMethod.Invoke (object,System.Reflection.BindingFlags,System.Reflection.Binder,object[],System.Globalization.CultureInfo) <0x000a3>
  at System.Reflection.MethodBase.Invoke (object,object[]) <0x0002a>
  at PowerArgs.ArgAction.Invoke () <0x003ae>
  at PowerArgs.Args/<>c__DisplayClass15_1.<InvokeAction>b__3 () <0x00067>
  at PowerArgs.Args.Execute<T_REF> (System.Func`1<T_REF>) <0x00072>
  at PowerArgs.Args/<>c__DisplayClass15_0.<InvokeAction>b__2 (string[]) <0x00143>
  at PowerArgs.REPL.DriveREPL<T_REF> (PowerArgs.TabCompletion,System.Func`2<string[], T_REF>,string[]) <0x00143>
  at PowerArgs.Args.InvokeAction (PowerArgs.CommandLineArgumentsDefinition,string[]) <0x002d3>
  at PowerArgs.Args.InvokeAction<T_REF> (string[]) <0x00057>
  at KAELoadTesting.Program.Main (string[]) <0x00017>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

	mono() [0x4a3002]
	/lib64/libpthread.so.0(+0xf100) [0x7fdb09bfa100]
	/lib64/libc.so.6(gsignal+0x37) [0x7fdb096495f7]
	/lib64/libc.so.6(abort+0x148) [0x7fdb0964ace8]
	mono() [0x6347e9]
	mono() [0x634a5c]
	mono() [0x634bf3]
	mono() [0x600676]
	mono() [0x5ee24a]
	mono() [0x5efbbe]
	mono() [0x5f1c92]
	mono() [0x5e529a]
	mono() [0x5d33d6]
	[0x41f098be]


Actually, I was using Mono v4.2.3.

[root@localhost Debug]# mono -V
Mono JIT compiler version 4.2.3 (Stable 4.2.3.4/832de4b Tue Mar 15 11:39:54 EDT 2016)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           __thread
	SIGSEGV:       altstack
	Notifications: epoll
	Architecture:  amd64
	Disabled:      none
	Misc:          softdebug 
	LLVM:          supported, not enabled.
	GC:            sgen