Reply To: I’m newbie in kernel programming, TDI program please help!:(

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#5647
Vijender
Participant

    Hi Rvd,

    The statetement that you are refering to, at which your driver is crashing, indicates that you are running at higher irql than PASSIVE_LEVEL.
    There could be many reasons for that:
    1. Your function is called at high irql by I/O system.
    2. You have raised your irql by say acquireing some lock but forgot to release.

    Your driver will crash at that statement if IRQL > PASSIVE_LEVEL no matter it is called first time or any time.