Article ID: 106167
Article Last Modified on 1/16/2007
APPLIES TO
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Workstation 3.51
- Microsoft Windows NT Server 3.5
- Microsoft Windows NT Server 3.51
This article was previously published under Q106167
Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry
SYMPTOMS
When you access shared items on a Windows NT server from a Windows NT client, you may receive the following error message:
The following events may also be logged:
Event ID: 2011
Event ID: 2011
Source: Srv
The server's configuration parameter "irpstacksize" is too small for the server to use a local device. Please increase the value of this parameter.
Event ID: 0
Event ID: 0
Source: SRV
Description: Description for Event ID 0 could not be found. It contains the insertion string \device\LanManServer
CAUSE
This issue may occur if the IRPStackSize registry entry on the server is set too low.
RESOLUTION
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
To resolve this issue, increase the value of the IRPStackSize registry entry. To do this, follow these steps:
- Click Start, click Run, type regedit, and then click OK.
- Locate and then click the following registry subkey:'
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\ParametersIf the IRPStackSize entry is not present in this subkey, follow these steps:
- Click Edit, point to New, and then click DWORD Value.
- Type IRPStackSize, and then press ENTER.
Note Type IRPStackSize exactly as it appears. The value name is case sensitive.
- Click IRPStackSize, click Edit, and then click Modify.
- In the Data Value box, type a larger value, and then click OK.
Note Values may range from 0x1 to 0xC. These values are equivalent to 1 to 12 in decimal notation.
If the problem persists after you complete the previous procedure, increase the value of IRPStackSize more.
MORE INFORMATION
If the IRPStackSize registry entry is not present, the computer uses a default value of 0x4. Depending on the configuration of the computer's hardware, this default value may not be large enough for the Srv service to administer shared folders on some of the physical drives. When a Windows for Workgroups client tries to access these shared directories, you receive the following message:
If you encounter this error message, gradually increase the value of IRPStackSize in order to find the minimum value which resolves the problem. Using a value that is larger than necessary might waste system resources. Other factors can also lead to this error message. If problems persist after you have used all the valid values for IRPStackSize, restore IRPStackSize to its original value, and seek another explanation for the error.
If you receive this error message and you are running Microsoft Windows NT 4.0, see the following article in the Microsoft Knowledge Base:
198386 Changes in IRP stack size in Lanman server
Additional query words: wfw wfwg IRP stack size
Keywords: kbnetwork kbprb KB106167
