w2k kernel function driver: NULL AllocatedResources and NULL AllocatedResourcesTranslated

NTDEV
1

Hello,

Infrequently my w2k Server WDM driver will, in response to
IRP_MN_START_DEVICE, receive NULL
values from the IRP stack for both the following fields:

  • IrpSp->Parameters.StartDevice.AllocatedResources
  • IrpSp->Parameters.StartDevice.AllocatedResourcesTranslated

When this occurs I fail the IRP_MN_START_DEVICE IRP which yields an
inoperable device.

Again this rarely happens, yet it happens enough to cause considerable
heartburn. Anyone know
why w2k would provide NULL resources to my driver?

Thanks in advance.