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Category: Software Debug and Trace

The MinnowBoard Chronicles Episode 38: Yocto Build Problems with my AMD Ryzen 7 1700X PC

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Alan Sguigna
It’s been a few months since I did any work with my MinnowBoard; time seems to fly by during the summer. In this episode, I pick up where I left off, doing various Yocto builds as I worked towards source-level debug of the Linux kernel. But, I’m having mysterious build failures, with some of the segmentation fault symptoms I had months ago before I RMA’ed my AMD CPU. Could this be raising its ugly head again?

Updated eBook on UEFI Debugging

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Alan Sguigna
You can always count on Larry Traylor to crank out useful new content for engineers. This time, he’s updated our Application Note on UEFI Debugging using SourcePoint on Intel Platforms.

Debug of Intel CATERR

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Alan Sguigna
In my last article, I outlined a short embedded JTAG-based ‘C’ routine to dump machine check errors in the event of a system crash or hang. In today’s blog, I look at this in the larger context of diagnosing the root cause of system wedges, and what embedded ITP techniques can be used to gather as much forensics data as possible.

The MinnowBoard Chronicles Episode 36: Explorations in SMM

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Alan Sguigna
System Management Mode (SMM) is an x86 operating mode in which all normal execution, including the operating system, is suspended. SMM is of interest to cybersecurity specialists (black hat and white hat) because it can also be abused to run high-privileged rootkits. This week, I decided to use SourcePoint to explore some of its mysteries.

Timing Benchmarks for BMC-Assisted Embedded JTAG

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Alan Sguigna
Moving run-control (Intel In-Target Probe, or ITP) down into the service processor on an x86 design results in a screamingly fast, scalable implementation of at-scale debug. This article contains some timing benchmarks of our embedded solution versus alternatives. The results are nothing short of astonishing.
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