SYSTEMS AND METHODS FOR IMPROVED DETECTION OF PROCESSOR HANG AND IMPROVED RECOVERY FROM PROCESSOR HANG IN A COMPUTING DEVICE
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United States of America
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Sep 21, 2017
app pub date -
Mar 18, 2016
filing date -
Mar 18, 2016
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Abstract
Systems and methods are disclosed for improved processor hang detection. An exemplary method comprises setting a timer with a hang threshold value for each of a plurality of processors of a system on a chip (SoC). The hang threshold value represents a time in microseconds. The method further comprising receiving a first heartbeat signal from each of the plurality of processors with detection logic hardware of a hang controller coupled to the plurality of processors and to the timer. The timer is reset for each of the plurality of processors if a second heartbeat signal is received from the corresponding one of the plurality of processors before the timer expires. Alternatively, a hang event notification is generated if the second heartbeat signal is not received from the corresponding one of the plurality of processors before the timer expires.
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