Blog

The MinnowBoard Chronicles Episode 30: using all 16 threads on my Ryzen?

Alan Sguigna

January 14, 2018
5:34 pm

In my last blog, I observed that running Yocto Linux builds with all 16 threads of my new AMD Ryzen 7 1700X machine would always crash. Running under VirtualBox and only using one thread always worked; but it took seven hours. Could I achieve a compromise?

The MinnowBoard Chronicles Episode 29: My new AMD Ryzen 7 CPU works, kind of

Alan Sguigna

December 25, 2017
11:46 am

Out of the frying pan, and into the fire: I beat the #&@! out of my new CPU from AMD, and the segmentation faults have gone away. But, now the new system is crashing!

JTAG and run-control API in BMCs for at-scale debug

Alan Sguigna

December 21, 2017
7:33 am

Truly at-scale debugging requires both JTAG Master and run-control functions to be embedded within server BMCs. Why is this true, and what extra capabilities become available?

JTAG Master function for embedded debug and test

Alan Sguigna

December 10, 2017
4:49 pm

In my last article, I described how the Open Compute Project (OCP) Project Olympus server designs have been put into the public domain by Microsoft Azure. Inherent in the Olympus servers is the hardware connection between the ASPEED BMC and the CPU JTAG chain. To make the most of this connection for hardware-assisted debug and test purposes, a high-performance, secure JTAG Master function is needed within the BMC.

Microsoft Project Olympus Schematics and Embedded JTAG Run-Control

Alan Sguigna

December 3, 2017
4:26 pm

As part of the Open Compute Project, Microsoft Azure is leading the charge in providing the technical information needed to democratize the server industry. Recently, they put into the public domain the full schematics and board files for an Intel Xeon Scalable Processor (Skylake-EP) server design. Reviewing the schematics provides great insight into the hardware design implementation needed to support at-scale debug via embedded JTAG run-control.

The MinnowBoard Chronicles Episode 28: Returning my AMD Ryzen 7 1700X CPU

Alan Sguigna

November 29, 2017
8:54 pm

Yes, I received an older AMD Ryzen 7 1700X CPU from Amazon. It’s RMA time!

ScanWorks Processor-based Fast Programming for TI Power Management UCD3138

Larry Osborn

November 15, 2017
1:57 pm

The MinnowBoard Chronicles Episode 27: Segfault on my AMD Ryzen 7 1700X

Alan Sguigna

October 29, 2017
5:54 pm

Last week, I suspected that I might be seeing segmentation fault failures on my new AMD Ryzen 7 1700X computer. I dug into this some more this week, and learned a lot!

The MinnowBoard Chronicles Episode 26: Linux image build segmentation faults on AMD?

Alan Sguigna

October 22, 2017
5:21 pm

It has been quite an adventure over the last week. I’m getting intermittent segmentation faults during my Yocto Linux image builds. Could it be a problem with my new AMD Ryzen 7 1700X CPU?

The MinnowBoard Chronicles Episode 25: Yocto builds for the MinnowBoard and the Portwell Neptune Alpha

Alan Sguigna

October 16, 2017
7:05 am

In Episode 24, I finished off my new build machine, successfully did a QEMU image build on it, and loaded an off-the-shelf Ubuntu image into my new MinnowBoard Turbot. This week, I tackled a MinnowBoard Linux image build using Yocto, loaded it into my MinnowBoard, and also set about doing a Yocto image build for the Portwell Neptune Alpha board. But I ran into some problems.

The MinnowBoard Chronicles Episode 30: using all 16 threads on my Ryzen?

The MinnowBoard Chronicles Episode 29: My new AMD Ryzen 7 CPU works, kind of

JTAG and run-control API in BMCs for at-scale debug

JTAG Master function for embedded debug and test

Microsoft Project Olympus Schematics and Embedded JTAG Run-Control

The MinnowBoard Chronicles Episode 28: Returning my AMD Ryzen 7 1700X CPU

ScanWorks Processor-based Fast Programming for TI Power Management UCD3138

The MinnowBoard Chronicles Episode 27: Segfault on my AMD Ryzen 7 1700X

The MinnowBoard Chronicles Episode 26: Linux image build segmentation faults on AMD?

The MinnowBoard Chronicles Episode 25: Yocto builds for the MinnowBoard and the Portwell Neptune Alpha

Archives

Categories