When ivtHandleInterrupt tried to restore the registers for the Gripper, it was pulling data from the wrong memory addresses. The "Instruction Pointer"—the address of the next line of code to run—was corrupted.
Developing a blog post for IvtHandleInterrupt requires understanding its role as a critical low-level function within the Windows Hardware Abstraction Layer ( ivthandleinterrupt
: You will almost exclusively see this function named in Blue Screen of Death ( BSOD ) logs following a DRIVER_VERIFIER_DMA_VIOLATION (0xE6) error. 🔍 Why You Are Seeing It When ivtHandleInterrupt tried to restore the registers for
void ivthandleinterrupt(void) uint32_t current_mask = __get_BASEPRI(); uint32_t incoming_irq = get_current_irq_number(); if (get_priority(incoming_irq) < current_mask) // Allow nesting – re-enable high-priority interrupts __set_BASEPRI(get_priority(incoming_irq)); uint32_t incoming_irq = get_current_irq_number()
Understanding ivthandleinterrupt : The Core of Hardware-Software Communication