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Introduction
Even worse, post-mortem analyses are yet harder when these events occur randomly and it is apparently impossible to trigger them in a controlled fashion. Sometimes, these situations occur when the system has already been deployed on the field and is used by end customers making the analysis amazingly troublesome.
Several techniques are available for post-mortem analysis. Software tools, hardware tools, or a combination of both can be leveraged. This article is the first of a series of Technical Notes (TN) describing in more details some of these techniques. Some TN's refer to real-world cases in which DAVE Embedded Systems put in filed field its expertise and leveraged some of these techniques to support several customers reporting on-field failures they were able to analyze with traditional debugging tools.
It is worth remembering that the analysis described in the TN's this series generally made no assumption about the root cause domain. In other words, information reported by customers were so limited and fragmented that was impossible to determine a priori if the root cause was software or hardware a priori.
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