Understanding the linux kernel-ch4-Nested Execution
2008-07-02 19:18
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| An interrupt handler may preempt both other interrupt handlers and exception handlers. | |||||||
| Conversely, an exception handler never preempts an interrupt handler. | |||||||
| Linux interleaves kernel control paths for two major reasons | |||||||
| · To improve the throughput of programmable interrupt controllers and device controllers | |||||||
| · To implement an interrupt model without priority levels. | |||||||
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