CheckLowMemory

The CheckLowMemory method checks for memory corruption in the low 4 GB of memory.

HRESULT
  IDebugDataSpaces::CheckLowMemory(
    );

Parameters

None

Return Value

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.

Interface Version

CheckLowMemory is available in all versions of IDebugDataSpaces.

Comments

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

Headers: Defined in Dbgeng.h. Include Dbgeng.h.