RE: [NTDev] Proper order of tearing down an MDL ...

> Are you saying that IoCompleteRequest() will always issue MmUnlockPages()

for any MDL ?

In NT4 - yes.
IoCompleteRequest will call MmUnlockPages for ALL MDL chain associated with
the IRP, not only for the first MDL (Irp->MdlAddress).

Max


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