请教一个Alinq 操作mysql的问题....急啊....各位大神门

我在用Alinq 向mysql插入一行新数据时候
O27 entity = new O27();
entity.Id = 2;
entity.Model = 2;
entity.Time = 1216;
entity.Date = 31;
entity.S1p2 = 1;
entity.S1p3 = 5;
entity.S2p4 = 9;
db.O27.InsertOnSubmit(entity);
db.SubmitChanges();
最后一句 db.SubmitChanges(); 运行时提示 “操作可能会破坏运行时稳定性”
跟踪堆栈
   在 Read_Object(ObjectMaterializer`1 )
   在 ALinq.SqlClient.ObjectReaderCompiler.ObjectReader`2.MoveNext()
   在 System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source)
   在 ALinq.ChangeDirector.StandardChangeDirector.DynamicInsert(TrackedObject item)
   在 ALinq.ChangeDirector.StandardChangeDirector.Insert(TrackedObject item)
   在 ALinq.ChangeProcessor.SubmitChanges(ConflictMode failureMode)
   在 ALinq.DataContext.SubmitChanges(ConflictMode failureMode)
   在 ALinq.DataContext.SubmitChanges()
   在 DataAnalysisAplha.Form1.button3_Click(Object sender, EventArgs e) 位置 D:\项目备份2012-5-14-8-12\数据分析\DataAnalysis\DataAnalysisAlpha\DataAnalysisAplha\View\Form1.cs:行号 23
   在 System.Windows.Forms.Control.OnClick(EventArgs e)
   在 System.Windows.Forms.Button.OnClick(EventArgs e)
   在 System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   在 System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   在 System.Windows.Forms.Control.WndProc(Message& m)
   在 System.Windows.Forms.ButtonBase.WndProc(Message& m)
   在 System.Windows.Forms.Button.WndProc(Message& m)
   在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   在 System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   在 System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   在 System.Windows.Forms.Application.Run(Form mainForm)
   在 DataAnalysisAplha.Program.Main() 位置 D:\项目备份2012-5-14-8-12\数据分析\DataAnalysis\DataAnalysisAlpha\DataAnalysisAplha\MiddleClass\Program.cs:行号 16
   在 System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   在 System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   在 Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   在 System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   在 System.Threading.ThreadHelper.ThreadStart()------------------------------------------------------------------------------------------------
请问大神们该如何解决？困扰一天了