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
If you received a blue screen error, or stop code, the computer has shut down abruptly to protect itself from data loss. A hardware device, its driver, or related software might have caused this error. If your copy of Windows came with your computer, call the manufacturer of your computer. If you purchased Windows separately from your computer, Microsoft provides support. To find contact info for Microsoft or your computer manufacturer, Contact Support.
If you have experience with computers and want to try to recover from this error, follow the steps provided in the Microsoft article Resolving STOP (Blue Screen) Errors in Windows.
These actions might prevent an error like this from happening again:
- Download and install updates and device drivers for your computer from Windows Update.
- Scan your computer for computer viruses.
- Check your hard disk for errors.
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 1 | Parameter 2 | Parameter 3 | Parameter 4 | Cause 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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Build date: 4/9/2013
