BT stack file TosBTMng.Exe generates 100% of CPU load

I am also facing the problem that the Toshiba Bluetooth Manager (TosBtMng.exe) very often starts a loop and causes a 100% CPU load.

This has happened with older versions of the Toshiba Bluetooth stack and the current version (5.1.0.12).

The affected system is a Tecra S1, BT-Modul and Windows XP SP2.

BT battery installation went well and the laptop starts succesfull while BT is enabled. I also checked for hidden COM-Ports and other tips in this forum, without success.

Blocking seems to occur at different times. Sometimes just after are restarted, by clicking on the tray icon of BT with the right button of the mouse. Then the context menu is shown all too the white box, no entries. He can also try to connect to a device already associated. If I kill the process with the Task Manager, I can restart and he continues to work for a while.

As found in another thread here, I enabled the registration of the API of the Bluetooth Manager and found the following when connecting with the Nokia PC Suite for my mobile phone:

Call the 00042519 21:55:05 [7208] (TosBtAPI / PCCSTBTP) BtCreateCOMM()-> BtCreateCOMM2()
00042520 21:55:05 [7208] [TosBtAPI (PCCSTBTP)] call BtCreateCOMM2()
00042521 21:55:05 [7208] [TosBtAPI (PCCSTBTP)] BtCreateCOMM2: InitCOMPort = COM6, CreateCOMPort = COM23
00042522 21:55:05 [7208] [TosBtAPI (PCCSTBTP)] BlockingSDPCall: send COPYDATASTRUCT / FuncNumber = 00008000 (32768), Size = 00000036 (54)
00042523 21:55:05 [7208] [TosBtAPI (PCCSTBTP)] receive WM_COPYDATA / fCloseAPI (BOOL) = 0
00042524 21:55:05 [7208] [TosBtAPI (PCCSTBTP)] SetReturnBackData: receipt COPYDATASTRUCT / FuncNumber = 00008000 (32768), Size = 00000028 (40)
00042525 21:55:05 [7208] [TosBtAPI (PCCSTBTP)] call BlockingSDPCall() is returned.
00042526 21:56:14 [7208] [TosBtAPI (PCCSTBTP)] call BtGetLocalInfo()
00042527 21:56:14 [7208] [TosBtAPI (PCCSTBTP)] BtGetLocalInfo2: entry Paramers / pLocalBtDeviceInfo = 00D9FE8C, plStatus = 00D9FE84
00042528 21:56:14 [7208] [TosBtAPI (PCCSTBTP)] BlockingSDPCall: send COPYDATASTRUCT / FuncNumber = 00001000 (4096), Size = 00000030 (48)
00042529 21:56:14 [7208] [TosBtAPI (PCCSTBTP)] receive WM_COPYDATA / fCloseAPI (BOOL) = 0
00042530 21:56:14 [7208] [TosBtAPI (PCCSTBTP)] SetReturnBackData: receipt COPYDATASTRUCT / FuncNumber = 00001000 (4096), Size = 0000003F (63)
00042531 21:56:14 [7208] [TosBtAPI (PCCSTBTP)] call BlockingSDPCall() is returned.
00042532 21:56:17 [7208] [TosBtAPI (PCCSTBTP)] call BtGetRemoteDeviceList2()

A new COM port is created successfully (COM23) and a few seconds later the CPU of TosBtMng load goes up to 100%, but no API calls are made. And if you wait long enough the phone are connected and data can be transferred. However, very slowly.

Probably because of the high CPU load a next port COM (COM24) will be created some time later and this process is then repeated once again:

00042740 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] receive WM_COPYDATA / fCloseAPI (BOOL) = 0
00042741 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] SetReturnBackData: receipt COPYDATASTRUCT / FuncNumber = 00008007 (32775), Size = 00000041 (65)
00042742 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] call BlockingSDPCall() is returned.
Call the 00042743 21:56:47 [7208] (TosBtAPI / PCCSTBTP) BtCreateCOMM()-> BtCreateCOMM2()
00042744 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] call BtCreateCOMM2()
00042745 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] BtCreateCOMM2: InitCOMPort = COM6, CreateCOMPort = COM24
00042746 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] BlockingSDPCall: send COPYDATASTRUCT / FuncNumber = 00008000 (32768), Size = 00000036 (54)
00042747 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] receive WM_COPYDATA / fCloseAPI (BOOL) = 0
00042748 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] SetReturnBackData: receipt COPYDATASTRUCT / FuncNumber = 00008000 (32768), Size = 00000028 (40)
00042749 21:56:47 [7208] [TosBtAPI (PCCSTBTP)] call BlockingSDPCall() is returned.
00042750 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtGetCOMMInfoList2()
Call the 00042751 21:57:52 [7208] (TosBtAPI / PCCSTBTP) BtCreateCOMM()-> BtCreateCOMM2()
00042752 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtCreateCOMM2()
Call the 00042753 21:57:52 [7208] (TosBtAPI / PCCSTBTP) BtCreateCOMM()-> BtCreateCOMM2()
00042754 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtCreateCOMM2()
Call the 00042755 21:57:52 [7208] (TosBtAPI / PCCSTBTP) BtCreateCOMM()-> BtCreateCOMM2()
00042756 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtCreateCOMM2()
Call the 00042757 21:57:52 [7208] (TosBtAPI / PCCSTBTP) BtCreateCOMM()-> BtCreateCOMM2()
00042758 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtCreateCOMM2()
Call the 00042759 21:57:52 [7208] (TosBtAPI / PCCSTBTP) BtCreateCOMM()-> BtCreateCOMM2()
00042760 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtCreateCOMM2()
00042761 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtGetLocalInfo()
00042762 21:57:52 [7208] [TosBtAPI (PCCSTBTP)] call BtGetLocalInfo()

Maybe this allows to locate the origin of the problem CPU load of the Bluetooth Manager.

Thank you
Gerhard

How your com port configuration look like?
Please compare with the DeviceManager screenshot from the following Web site:
http://APS2.toshiba-tro.de/Bluetooth/?page=FAQ/bluetoothnotworking

Tags: Toshiba

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