Category: Software Debug and Trace – Intel

Over the last two and a half years, I've intermittently chronicled my explorations into some fairly esoteric technical topics, using the MinnowBoard Turbot board as a platform. And yes, time flies, and I've covered a lot of ground. All 45 chapters are listed below. Enjoy!
Do you know how it feels when you have an itch, and you just have to scratch it? Well, after an extended hiatus from writing, I felt an overwhelming compulsion to do another MinnowBoard image build with source and symbols, do some more exploring, and then blog about it.
In Episode 41, Hacking the Linux Kernel, Part 2, I successfully hacked the Linux kernel, both on a native Linux partition, and within a Ubuntu VM on VirtualBox, by using the general directions within the Linux Newbies First Kernel Patch tutorial. This week, I worked towards hacking the Linux kernel using a Yocto-based qemux86 on VirtualBox, as a final step towards actually hacking the kernel on my MinnowBoard.
Rejoice, Linux kernel newbies. Last week, I hacked an Ethernet driver in the Linux kernel, but the hack didn’t work; it turns out that the driver I chose isn’t used in my native Linux image on my PC. This week, I tackled the problem again, with success! And if I can do it, you can, too.
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?
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