当对dma 的transfer 进行初始化时产生 irql_not_less_or_equal

当对dma 的transfer 进行初始化时m_CurrentTransfer->Initiatein

在softice 产生 irql_not_less_or_equal
请问这是什么原因造成的

如何处理


function list below  ################################################

void Pci2_8Device::SerialRead(KIrp I)
{

  NTSTATUS status = STATUS_SUCCESS;  
 // Create a new DMA transfer object for this IRP m_CurrentTransfer = new(NonPagedPool) KDmaTransfer(this, &m_Dma);

// get memory for transfer  

 t << \"Entering Pci2_8Device::SerialRead, m_CurrentTransfer\" << m_CurrentTransfer;

if ( m_CurrentTransfer == NULL )
{     t << \"Entering Pci2_8Device::SerialRead, m_CurrentTransfer == NULL\" << I << EOL;
    status = STATUS_INSUFFICIENT_RESOURCES;         I.Information() = 0;      
  I.Status() = status;      
  PnpNextIrp(I); }
status = m_CurrentTransfer->Initiate(
I.Mdl(),
(I.MajorFunction() == IRP_MJ_READ) ? FromDeviceToMemory : FromMemoryToDevice,
LinkTo(OnDmaReady) );  
   t << \"Entering Pci2_8Device::SerialRead,m_CurrentTransfer->Initiate \" << I << EOL;    

if ( ! NT_SUCCESS(status) ) { delete m_CurrentTransfer; m_CurrentTransfer = NULL; I.Information() = 0;
I.Status() = status;
PnpNextIrp(I);
}
 ###############################################

老兄你的问题解决没有啊，我也碰到同样的问题。那位高手能解答解答

我想可能是操作的优先级不够吧.要提高优先级.