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Bug Check 0x4E: PFN_LIST_CORRUPT

The PFN_LIST_CORRUPT bug check has a value of 0x0000004E. This indicates that the page frame number (PFN) list is corrupted.

Important Info If You Have Received a STOP Code

bsod

If you received a blue screen error, or stop code, the computer has shut down abruptly to protect itself from data loss.

For information about how to recover from this error, see Resolving Blue Screen errors in Windows.

PFN_LIST_CORRUPT Parameters

The following parameters are displayed on the blue screen. Parameter 1 indicates the type of violation. The meaning of the other parameters depends on the value of Parameter 1.

Parameter 1Parameter 2Parameter 3Parameter 4Cause of Error

0x01

The ListHead value that was corrupted

The number of pages available

0

The list head was corrupted.

0x02

The entry in the list that is being removed

The highest physical page number

The reference count of the entry being removed

A list entry was corrupted.

0x07

The page frame number

The current share count

0

A driver has unlocked a certain page more times than it locked it.

0x8D

The page frame number whose state is inconsistent

0

0

The page-free list is corrupted. This error code most likely indicates a hardware issue.

0x8F

New page number

Old page number

0

The free or zeroed page listhead is corrupted.

0x99

Page frame number

Current page state

0

A page table entry (PTE) or PFN is corrupted.

0x9A

Page frame number

Current page state

The reference count of the entry that is being removed

A driver attempted to free a page that is still locked for IO.

 

Cause

This error is typically caused by a driver passing a bad memory descriptor list. For example, the driver might have called MmUnlockPages twice with the same list.

If a kernel debugger is available, examine the stack trace.

 

 

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