Detecting deadlocks involving inter-processor interrupts
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United States of America Patent
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Jan 23, 2018
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app pub date -
Jun 27, 2014
filing date -
Jun 27, 2014
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Abstract
Creating, maintaining and using a lock dependency graph in a way that includes the following steps: (i) acquiring a first restriction on processor access in a multi-processor computer system; (ii) modeling the first restriction as first locking primitive information; and (iii) storing data corresponding to the first locking primitive information in a lock dependency graph. The first restriction on processor access is one of the following two types: (i) disabling the interrupts on a given processor; and/or (ii) sending inter-processor interrupts with synchronous waiting from one processor to another (including itself).
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