Session Manager in 15.2.69 stops working sometimes

[ebob42]

When you say you get an AV, where exactly does it happen? Do you have the call stack (the exception logger, if active, should contain all details about it).

We get an "Invalid Pointer Operation" in the TIWForm.Dispose calling inherited Dispose:

Code:

TIWForm.Dispose inherited dispose
[000000005EDE9A63] System.ErrorAt
[000000005EDE9AB1] System.Error
[000000005EDE97D1] System.@FreeMem
[000000005EE1FFEA] System.SysUtils.StrDispose
[000000005F10BEC9] Vcl.Controls.TControl.Destroy
[00000000607CDA64] IWVCLBaseControl.TIWVCLBaseControl.Destroy (Line 176, "IWVCLBaseControl.pas")
[000000005EDEEED8] System.TObject.Free
[00000000607AACFB] IWContainer.TIWContainer.Dispose (Line 545, "IWContainer.pas")
[00000000607CE8E0] IWFormDsn.TIWModuleDsn.Dispose (Line 139, "IWFormDsn.pas")
[00000000607D12CD] IWBaseForm.TIWBaseForm.Dispose (Line 494, "IWBaseForm.pas")
[000000005FE6F569] IWBaseHTMLForm.TIWBaseHTMLForm.Dispose (Line 90, "IWBaseHTMLForm.pas")
[00000000607BFB5B] IWForm.TIWForm.Dispose (Line 523, "IWForm.pas")
[000000006064A8B3] UnitCaiwBaseForm.TIWCaiwBaseForm.Dispose (Line 1653, "UnitCaiwBaseForm.pas")
[000000005F1E3C66] IWVCLBaseContainer.TIWBaseContainer.Destroy (Line 228, "IWVCLBaseContainer.pas")
[00000000607D0E7D] IWBaseForm.TIWBaseForm.Destroy (Line 394, "IWBaseForm.pas")
[00000000607BF0CF] IWForm.TIWForm.Destroy (Line 361, "IWForm.pas")
[00000000606496D4] UnitCaiwBaseForm.TIWCaiwBaseForm.Destroy (Line 1541, "UnitCaiwBaseForm.pas")
[000000005EDEEED8] System.TObject.Free
[000000005EF25C8F] System.Classes.TComponent.DestroyComponents
[000000005EF2547F] System.Classes.TComponent.Destroy
[00000000607D9C0E] IWApplication.TIWApplication.Destroy (Line 819, "IWApplication.pas")
[000000005EDEEED8] System.TObject.Free
[000000005F1D75C7] IWServerControllerBase.TSessionTimeoutThread.DoExecute (Line 1658, "IWServerControllerBase.pas")
[000000005EFABE2C] IW.Common.Threads.TIWTimedThread.Execute (Line 228, "IW.Common.Threads.pas")
[000000005EF23263] System.Classes.ThreadProc
[000000005EDF224D] System.ThreadWrapper
[00007FFC896C4DE0] BaseThreadInitThunk
[00007FFC8ABBED9B] RtlUserThreadStart
: Invalid pointer operation