Debugging Tools for Windows

Bug Check 0x25: NPFS_FILE_SYSTEM

The NPFS_FILE_SYSTEM bug check has a value of 0x00000025. This indicates that a problem occurred in the NPFS file system.

Parameters

The following parameters are displayed on the blue screen.

Parameter Description
1 Specifies source file and line number information. The high 16 bits (the first four hexadecimal digits after the "0x") identify the source file by its identifier number. The low 16 bits identify the source line in the file where the bug check occurred.
2 Reserved
3 Reserved
4 Reserved

Cause

One possible cause of this bug check is depletion of nonpaged pool memory. If the nonpaged pool memory is completely depleted, this error can stop the system. However, during the indexing process, if the amount of available nonpaged pool memory is very low, another kernel-mode driver requiring nonpaged pool memory can also trigger this error.

Resolving the Problem

To resolve a nonpaged pool memory depletion problem: Add new physical memory to the computer. This will increase the quantity of nonpaged pool memory available to the kernel.

Build machine: CAPEBUILD