TCP/IP Experiences STOP 0x7F Under Heavy Load

ID: Q216765

The information in this article applies to:

Microsoft Windows NT Server version 3.51
Microsoft Windows NT Workstation version 3.51

SYMPTOMS

Under high load, a server may experience the following STOP error message:

0x7F (UNEXPECTED_KERNEL_MODE_TRAP): 0x0000007f (0x00000008, 0x00000000, 0x00000000, 0x00000000)

The first parameter, 0x08, indicates that this is a double-fault.

CAUSE

For deferred processing, TCP/IP is calling a function recursively. Under high load, this recursion can cause a stack overflow.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but has not been fully regression tested and should be applied only to systems experiencing this specific problem.

To resolve this problem immediately, download the fix as described below. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/support/supportnet/default.asp

The English version of this fix should have the following file attributes or later:


   Date      Time                 Size    File Name     Platform
   -------------------------------------------------------------
   02/04/99  09:52p               124,080 Tcpip.sys     (x86)
   02/04/99  09:54p               217,328 Tcpip.sys     (Alpha)

NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, a fee may be charged. This fee is refundable if it is determined that you only require the fix you requested. However, this fee is non-refundable if you request additional technical support, if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:

Q154871 Determining If You Are Eligible for No-Charge Technical Support

STATUS

Microsoft has confirmed this to be a problem in Windows NT 3.51.

Additional query words: 3.51

Keywords :
Version : winnt:3.51
Platform : winnt
Issue type : kbbug