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IDebugDataSpaces2::CheckLowMemory method (dbgeng.h)

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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
S_OK
 No corruption was found.
FACILITY_NT_BIT |Page
 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)