Hemsö Fästning – Coastal Defense from the 1950s

Continuing on my blog posts about our Hemester (part 1 covered Bodens Fästning), this blog post will cover Hemsö Fästning. Both are fascinating places, but also rather different, and clearly demonstrate the changes from the early 1900s to the Cold War of the 1950s.

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Bodens Fästning – A Fortress in the North of Sweden

Due to Covid-19, this year’s summer vacation involved a “staycation”, or “hemester” as we say in Swedish. We went up north in Sweden, and took the chance to visit some military museums. In particular, the fortresses at Hemsön and Boden (fästning means fortress). Both are fascinating places, but also rather different, and clearly demonstrate the developments from the early 1900s to the Cold War of the 1950s. This post covers Boden, with a separate post for Hemsö released a few days after this post.

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Intel Blog Post: Fault Injection in the Early Days of Simics

Injecting faults into systems and subjecting them to extreme situations at or beyond their nominal operating conditions is an important part of making sure they keep working even when things go bad.  It was realized very early in the history of Simics (and the same observation had been made by other virtual platform and simulator providers) that using a virtual platform makes it much easier to provide cheap, reliable, and repeatable fault injection for software testing. In an Intel Developer Zone (IDZ) blog post, I describe some early cases of fault injection with Simics.

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Virtual Platforms for Late Hardware and the Winds of History

As might be evident from this blog, I do have a certain interest in history and the history of computing in particular. One aspect where computing and history collide in a not-so-nice way today is in the archiving of digital data for the long term. I just read an article at Forskning och Framsteg where they discuss some of the issues that use of digital computer systems and digital non-physical documents have on the long-term archival of our intellectual world of today. Basically, digital archives tend to rot in a variety of ways. I think virtual platform technology could play a role in preserving our digital heritage for the future.

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Linux KVM for IBM Mainframes

There was an interesting little note at the CodeMonkey blog… basically, the Linux kvm kernel hardware virtualization support system now works on IBM z series mainframes. Using the z architecture virtualization support in hardware.  Nice to see some attention being put on non-x86 architectures. And a nice historical note that current x86 virtualization extensions were indeed inspired by the s/370 architecture from the mid-1970s. Cool.

Book review: “Fruits of War”

A review of the book “Fruits of War” by Michael White. The book discusses how war has accelerated technological progress and provided unexpected benefits to society. The author is a bit defensive about not professing that war is good in any way, which is pretty obvious and does not really need to be an issue in reading the book. It is a fairly straight reporting of facts, rather than any attempt to editorialize or present radical opinions.
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