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The CheckLowMemory method checks for memory corruption in the low 4 GB of memory.
Syntax
HRESULT CheckLowMemory();
Return value
| Return code | Description |
|---|---|
|
No corruption was found. |
|
Corruption was found on the memory page Page. |
This method can also return error values. See Return Values for more details.
Remarks
This method is only available in kernel-mode debugging, and is only useful when the kernel was booted using the /nolowmem option.
When the kernel is booted with the /nolowmem option, the kernel, drivers, operating system and applications are loaded in memory above 4 GB, while the low 4 GB of memory is filled with a unique pattern. The CheckLowMemory method checks this pattern for corruption.
This may be used to verify that a driver behaves well when using physical addresses greater than 32 bits in length. See Physical Address Extension (PAE), /pae, and /nolowmem in the Windows Driver Kit.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | dbgeng.h (include Dbgeng.h) |