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Bug Check 0xC1: SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION

The SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION bug check has a value of 0x000000C1. This indicates that the driver wrote to an invalid section of the special pool.

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.

SPECIAL_POOL_DETECTED_MEMORY_CORRUPTION Parameters

The following parameters are displayed on the blue screen. Parameter 4 indicates the type of violation.

Parameter 1Parameter 2Parameter 3Parameter 4Cause of Error

Address that the driver tried to free

Reserved

0

0x20

A driver attempted to free pool which was not allocated.

Address that the driver tried to free

Bytes requested

Bytes calculated (actually given to the caller)

0x21,

0x22

A driver attempted to free a bad address.

Address that the driver tried to free

Address where bits are corrupted

Reserved

0x23

A driver freed an address, but nearby bytes within the same page have been corrupted.

Address that the driver tried to free

Address where bits are corrupted

Reserved

0x24

A driver freed an address, but bytes occurring after the end of the allocation have been overwritten.

Current IRQL

Pool type

Number of bytes

0x30

A driver attempted to allocate pool at an incorrect IRQL.

Current IRQL

Pool type

Address that the driver tried to free

0x31

A driver attempted to free pool at an incorrect IRQL.

Address that the driver tried to free

Address where one bit is corrupted

Reserved

0x32

A driver freed an address, but nearby bytes within the same page have a single bit error.

 

The _POOL_TYPE codes are enumerated in ntddk.h. In particular, zero indicates nonpaged pool and one indicates paged pool.

Cause

A driver has written to an invalid section of the special pool.

Resolution

Obtain a backtrace of the current thread. This backtrace will usually reveal the source of the error.

For information about the special pool, consult the Driver Verifier section of the Windows Driver Kit.

 

 

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