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NT restart without regular shutdown



Dear driver experts,

WindowsNT can output crash dump and then restarts without regular shutdown.
Device drivers must quieten their devices at first because devices can
assert INTx#.
WindowsNT launches drivers in a certain sequence.
In a case that device A and device B share INTx#/IRQn and driver A starts
before driver B, what will happen if driver A receives the interrupt
requested by device B?
To tell the truth, although device A and B don't share a same INTx#/IRQn
in my application, driver A dies. Why?
How can I solve this problem?
Both device A and B are network.

Thanks in advance,
Takashi Nakamura
Yokogawa Electric Corporation