Microsoft Knowledge Base Archive

Support for Windows Vista Service Pack 1 (SP1) ends on July 12, 2011. To continue receiving security updates for Windows, make sure you're running Windows Vista with Service Pack 2 (SP2). For more information, refer to this Microsoft web page: Support is ending for some versions of Windows.

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Symptoms

Consider the following scenario:

You have a Peripheral Component Interconnect (PCI) Express interface that supports the "hot plugging" feature on a Windows Server 2008-based computer or on a Windows Vista-based computer.
You connect a device to the root port of the PCI Express interface.
You use the "hot plugging" feature to add or to remove a PCI Express device on the computer.

In this scenario, the Windows Server 2008-based computer or the Windows Vista-based computer may be restarted unexpectedly. Additionally, you receive the following error message:

0x00000124

Note When you restart a Windows Server 2008-based computer or a Windows Vista-based computer, the issue may also occur if a PCI device is connected to the root port of the PCI-Express bus on the computer.

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Cause

This issue occurs because resource rebalancing is triggered after you hot plug a PCI device. During the rebalancing process, the system does not configure the Max Payload Size value correctly on the root port of the PCI Express bus. The incorrect value causes a mismatch between the root port of the PCI Express bus and the device on the PCI Express bus. Therefore, the operating system triggers a Machine Check Architecture (MCA) exception, and the operating system returns a “0x00000124” exception.

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Resolution

Windows Vista hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

There are no prerequisites.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Vista, 32-bit editions

File name	File version	File size	Date	Time	Platform
Agp440.sys	6.0.6000.20832	56,376	10-May-2008	03:14	x86
Amdagp.sys	6.0.6000.20832	57,400	10-May-2008	03:14	x86
Isapnp.sys	6.0.6000.20832	49,720	10-May-2008	03:14	x86
Machine.inf	Not Applicable	288,088	09-May-2008	22:29	Not Applicable
Msisadrv.sys	6.0.6000.20832	16,440	10-May-2008	03:14	x86
Mssmbios.sys	6.0.6000.20832	31,288	10-May-2008	03:14	x86
Nv_agp.sys	6.0.6000.20832	109,112	10-May-2008	03:14	x86
Pci.sys	6.0.6000.20832	143,928	10-May-2008	03:14	x86
Rdpdr.sys	6.0.6000.20832	242,688	10-May-2008	01:22	x86
Sisagp.sys	6.0.6000.20832	55,864	10-May-2008	03:14	x86
Streamci.dll	6.0.6000.20832	25,144	10-May-2008	03:14	x86
Swenum.sys	6.0.6000.20832	15,288	10-May-2008	03:14	Not Applicable
Termdd.sys	6.0.6000.20832	53,304	10-May-2008	03:14	x86
Uliagpkx.sys	6.0.6000.20832	60,984	10-May-2008	03:14	x86
Viaagp.sys	6.0.6000.20832	56,888	10-May-2008	03:14	x86
Volmgr.sys	6.0.6000.20832	52,792	10-May-2008	03:14	x86

Windows Vista with Service Pack 1, 32-bit editions

File name	File version	File size	Date	Time	Platform
Agp440.sys	6.0.6001.22176	56,376	10-May-2008	03:22	x86
Amdagp.sys	6.0.6001.22176	57,400	10-May-2008	03:22	x86
Isapnp.sys	6.0.6001.22176	49,720	10-May-2008	03:22	x86
Machine.inf	Not Applicable	288,444	09-May-2008	22:31	Not Applicable
Msisadrv.sys	6.0.6001.22176	16,440	10-May-2008	03:22	x86
Mssmbios.sys	6.0.6001.22176	31,288	10-May-2008	03:22	x86
Nv_agp.sys	6.0.6001.22176	109,112	10-May-2008	03:23	x86
Pci.sys	6.0.6001.22176	151,096	10-May-2008	03:23	x86
Rdpdr.sys	6.0.6001.22176	248,832	10-May-2008	01:27	x86
Sisagp.sys	6.0.6001.22176	55,864	10-May-2008	03:24	x86
Streamci.dll	6.0.6001.22176	25,144	10-May-2008	03:24	x86
Swenum.sys	6.0.6001.22176	15,288	10-May-2008	03:24	Not Applicable
Termdd.sys	6.0.6001.22176	54,328	10-May-2008	03:24	x86
Uliagpkx.sys	6.0.6001.22176	60,984	10-May-2008	03:24	x86
Viaagp.sys	6.0.6001.22176	56,888	10-May-2008	03:24	x86
Volmgr.sys	6.0.6001.22176	52,792	10-May-2008	03:24	x86

Windows Vista, 64-bit editions

File name	File version	File size	Date	Time	Platform
Agp440.sys	6.0.6000.20832	64,568	10-May-2008	03:35	x64
Isapnp.sys	6.0.6000.20832	23,608	10-May-2008	03:35	x64
Machine.inf	Not Applicable	276,208	09-May-2008	22:28	Not Applicable
Msisadrv.sys	6.0.6000.20832	17,976	10-May-2008	03:35	x64
Mssmbios.sys	6.0.6000.20832	34,872	10-May-2008	03:35	x64
Nv_agp.sys	6.0.6000.20832	126,520	10-May-2008	03:35	x64
Pci.sys	6.0.6000.20832	170,552	10-May-2008	03:36	x64
Rdpdr.sys	6.0.6000.20832	305,664	10-May-2008	01:46	x64
Streamci.dll	6.0.6000.20832	26,680	10-May-2008	03:37	x64
Swenum.sys	6.0.6000.20832	15,544	10-May-2008	03:39	x64
Termdd.sys	6.0.6000.20832	62,520	10-May-2008	03:39	x64
Uliagpkx.sys	6.0.6000.20832	68,152	10-May-2008	03:39	x64
Volmgr.sys	6.0.6000.20832	62,520	10-May-2008	03:37	x64

Windows Vista with Service Pack 1, 64-bit editions

File name	File version	File size	Date	Time	Platform
Agp440.sys	6.0.6001.22176	64,568	10-May-2008	04:03	x64
Isapnp.sys	6.0.6001.22176	23,608	10-May-2008	03:58	x64
Machine.inf	Not Applicable	276,564	09-May-2008	22:30	Not Applicable
Msisadrv.sys	6.0.6001.22176	17,976	10-May-2008	03:58	x64
Mssmbios.sys	6.0.6001.22176	34,872	10-May-2008	03:58	x64
Nv_agp.sys	6.0.6001.22176	126,520	10-May-2008	03:58	x64
Pci.sys	6.0.6001.22176	179,768	10-May-2008	03:58	x64
Rdpdr.sys	6.0.6001.22176	314,368	10-May-2008	01:58	x64
Streamci.dll	6.0.6001.22176	26,680	10-May-2008	04:01	x64
Swenum.sys	6.0.6001.22176	15,544	10-May-2008	04:08	x64
Termdd.sys	6.0.6001.22176	63,544	10-May-2008	04:01	x64
Uliagpkx.sys	6.0.6001.22176	68,152	10-May-2008	04:08	x64
Volmgr.sys	6.0.6001.22176	68,664	10-May-2008	04:01	x64

Windows Vista with Service Pack 1, Itanium-based editions

File name	File version	File size	Date	Time	Platform
Agp460.sys	6.0.6001.22176	136,704	10-May-2008	01:00	IA-64
Isapnp.sys	6.0.6001.22176	37,432	10-May-2008	03:50	IA-64
Machine.inf	Not Applicable	270,758	09-May-2008	22:29	Not Applicable
Msisadrv.sys	6.0.6001.22176	25,144	10-May-2008	03:47	IA-64
Mssmbios.sys	6.0.6001.22176	57,400	10-May-2008	03:47	IA-64
Pci.sys	6.0.6001.22176	439,864	10-May-2008	03:45	IA-64
Rdpdr.sys	6.0.6001.22176	709,632	10-May-2008	01:54	IA-64
Streamci.dll	6.0.6001.22176	46,136	10-May-2008	03:46	IA-64
Swenum.sys	6.0.6001.22176	19,256	10-May-2008	03:46	Not Applicable
Termdd.sys	6.0.6001.22176	156,216	10-May-2008	03:46	IA-64
Volmgr.sys	6.0.6001.22176	148,536	10-May-2008	03:46	IA-64

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Windows Server 2008 hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

There are no prerequisites.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2008, 32-bit editions

File name	File version	File size	Date	Time	Platform
Agp440.sys	6.0.6001.22176	56,376	10-May-2008	03:22	x86
Amdagp.sys	6.0.6001.22176	57,400	10-May-2008	03:22	x86
Isapnp.sys	6.0.6001.22176	49,720	10-May-2008	03:22	x86
Machine.inf	Not Applicable	288,444	09-May-2008	22:31	Not Applicable
Msisadrv.sys	6.0.6001.22176	16,440	10-May-2008	03:22	x86
Mssmbios.sys	6.0.6001.22176	31,288	10-May-2008	03:22	x86
Nv_agp.sys	6.0.6001.22176	109,112	10-May-2008	03:23	x86
Pci.sys	6.0.6001.22176	151,096	10-May-2008	03:23	x86
Rdpdr.sys	6.0.6001.22176	248,832	10-May-2008	01:27	x86
Sisagp.sys	6.0.6001.22176	55,864	10-May-2008	03:24	x86
Streamci.dll	6.0.6001.22176	25,144	10-May-2008	03:24	x86
Swenum.sys	6.0.6001.22176	15,288	10-May-2008	03:24	Not Applicable
Termdd.sys	6.0.6001.22176	54,328	10-May-2008	03:24	x86
Uliagpkx.sys	6.0.6001.22176	60,984	10-May-2008	03:24	x86
Viaagp.sys	6.0.6001.22176	56,888	10-May-2008	03:24	x86
Volmgr.sys	6.0.6001.22176	52,792	10-May-2008	03:24	x86

Windows Server 2008, 64-bit editions

File name	File version	File size	Date	Time	Platform
Agp440.sys	6.0.6001.22176	64,568	10-May-2008	04:03	x64
Isapnp.sys	6.0.6001.22176	23,608	10-May-2008	03:58	x64
Machine.inf	Not Applicable	276,564	09-May-2008	22:30	Not Applicable
Msisadrv.sys	6.0.6001.22176	17,976	10-May-2008	03:58	x64
Mssmbios.sys	6.0.6001.22176	34,872	10-May-2008	03:58	x64
Nv_agp.sys	6.0.6001.22176	126,520	10-May-2008	03:58	x64
Pci.sys	6.0.6001.22176	179,768	10-May-2008	03:58	x64
Rdpdr.sys	6.0.6001.22176	314,368	10-May-2008	01:58	x64
Streamci.dll	6.0.6001.22176	26,680	10-May-2008	04:01	x64
Swenum.sys	6.0.6001.22176	15,544	10-May-2008	04:08	x64
Termdd.sys	6.0.6001.22176	63,544	10-May-2008	04:01	x64
Uliagpkx.sys	6.0.6001.22176	68,152	10-May-2008	04:08	x64
Volmgr.sys	6.0.6001.22176	68,664	10-May-2008	04:01	x64

Windows Server 2008, Itanium-based edition

File name	File version	File size	Date	Time	Platform
Agp460.sys	6.0.6001.22176	136,704	10-May-2008	01:00	IA-64
Isapnp.sys	6.0.6001.22176	37,432	10-May-2008	03:50	IA-64
Machine.inf	Not Applicable	270,758	09-May-2008	22:29	Not Applicable
Msisadrv.sys	6.0.6001.22176	25,144	10-May-2008	03:47	IA-64
Mssmbios.sys	6.0.6001.22176	57,400	10-May-2008	03:47	IA-64
Pci.sys	6.0.6001.22176	439,864	10-May-2008	03:45	IA-64
Rdpdr.sys	6.0.6001.22176	709,632	10-May-2008	01:54	IA-64
Streamci.dll	6.0.6001.22176	46,136	10-May-2008	03:46	IA-64
Swenum.sys	6.0.6001.22176	19,256	10-May-2008	03:46	Not Applicable
Termdd.sys	6.0.6001.22176	156,216	10-May-2008	03:46	IA-64
Volmgr.sys	6.0.6001.22176	148,536	10-May-2008	03:46	IA-64

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More Information

The PCI Express bus is a big technological improvement over the PCI bus. PCI Express provides better bandwidth. It also has an architecture that can be scaled to meet the requirements of the next generation of hardware and software.

PCI Express simplifies hardware requirements for hot plugging functionality. Users can now replace damaged system devices, such as network adapters and storage controllers, when a computer is running.

The resource rebalancing feature lets the operating system redistribute the resources that are allocated to I/O, to memory, and to interrupts when a device is hot plugged on the system. This feature is a more efficient and flexible resource allocation mechanism than the static resource allocation mechanism that is implemented in other Windows operating systems.

To see the devices that are listed under the PCI Express root port in Device Manager, follow these steps:

Start Device Manager.
Click View, and then click Devices by connection.
Expand the PCI bus.

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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Article ID	:	952681
Revision	:	4
Created on	:	9/26/2018
Published on	:	12/13/2018
Exists online	:	False
Views	:	194

Microsoft KB Archive Search

A "0x00000124" Stop error message occurs when you use the "hot plugging" feature to add or to remove a PCI Express device on a Windows Server 2008-based computer or on a Windows Vista-based computer

Symptoms

Cause

Resolution

Windows Vista hotfix information

Prerequisites

Restart requirement

Hotfix replacement information

File information

Windows Vista, 32-bit editions

Windows Vista with Service Pack 1, 32-bit editions

Windows Vista, 64-bit editions

Windows Vista with Service Pack 1, 64-bit editions

Windows Vista with Service Pack 1, Itanium-based editions

Windows Server 2008 hotfix information

Prerequisites

Restart requirement

Hotfix replacement information

File information

Windows Server 2008, 32-bit editions

Windows Server 2008, 64-bit editions

Windows Server 2008, Itanium-based edition

More Information

Status

Applies to: