Bug Check 0xAB: SESSION_HAS_VALID_POOL_ON_EXIT
The SESSION_HAS_VALID_POOL_ON_EXIT bug check has a value of 0x000000AB. This bug check indicates that a session unload occurred while a session driver still held memory.
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.
SESSION_HAS_VALID_POOL_ON_EXIT Parameters
The following parameters appear on the blue screen.
| Parameter | Description |
|---|---|
|
1 |
The session ID. |
|
2 |
The number of paged pool bytes that are leaking. |
|
3 |
The number of nonpaged pool bytes that are leaking. |
|
4 |
The total number of paged and nonpaged allocations that are leaking. (The number of nonpaged allocations are in the upper half of this word, and paged allocations are in the lower half of this word.) |
Cause
The SESSION_HAS_VALID_POOL_ON_EXIT bug check occurs because a session driver does not free its pool allocations before a session unload. This bug check indicates a bug in Win32k.sys, Atmfd.dll, Rdpdd.dll, or a video driver.
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Build date: 4/9/2013
