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Windows nt 0 Summary Based on articles written by Mark Russinovich
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bet | 13/13 | Sana | 21.03.2017 | Hajmi | 455.24 Kb. | | #1031 |
Symbolic Name
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Purpose
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Intel Level
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Alpha Level
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High Level
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Highest interrupt level
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31
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7
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Passive Level
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No interrupts
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0
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0
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One of the biggest problems with NT’s interrupt handling mechanism is that whenever interrupts are serviced (ISRs and all associated DPCs) the Windows NT Scheduler is inoperative. Note that Scheduler operations are at Dispatch Level, and the DPCs and ISRs run at Dispatch Level and Device Level respectively, meaning all interrupts at the Dispatch Level and lower are not accepted.
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