🙀 Something breaks If you use linux running some applications you could have seen sometimes a similar error message: [1] 24975 segmentation fault (core dumped) what’s meaning and how it can be useful ? Let’s dig it out. 🧪 Lab Setup To make a proper case study, we need a crashing program. Of course they are very rare nowadays 😁 so we just create a new one ourself, showing off our worst C coding bad skills and practices. ...

Intro: [SYN] Last 7-8 March 2024 I was at Open Source Day 2024: a free conference organized by Schrodinger-Hat Open Source Community. Two days of talks, meeting old and new friends, networking and fun in a beautiful city. Since the event was split into two tracks, I had to carefully choose which one to attend ; if you are interested all the sessions was recorded and live streamed. Day Stream Recording links 1 Alpha Track Beta Track 2 Alpha Track Beta Track Speaking of open source events, each talk proposal is simply an issue on a GitHub repository, and the selection was done by picking the ones with most “thumbs up” vote from the community. ...

An old find I found an old cubieboard3 (cubietruck) collecting dust in a drawer, so I took the chance to try out Rust cross compilation and collect here some notes about the process. Here’s the baby: Give it a penguin First of all, I installed an ARM linux distro on a MicroSD card and started the device: [user@arm ~]$ cat /proc/cpuinfo processor : 0 model name : ARMv7 Processor rev 4 (v7l) BogoMIPS : 50.52 Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xc07 CPU revision : 4 processor : 1 model name : ARMv7 Processor rev 4 (v7l) BogoMIPS : 50.52 Features : half thumb fastmult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xc07 CPU revision : 4 Hardware : Allwinner sun7i (A20) Family Revision : 0000 So our device is ARM model v7l ; this means is a 32bit CPU, if you are curious there’s also a reference manual around. Now we will work from a development machine. ...

🕵️ Intro The Linux Test Project is a joint project started years ago by SGI, OSDL and Bull developed and now maintained by IBM, Cisco, Fujitsu, SUSE, Red Hat, Oracle and many others. The project goal is to deliver tests to the open source community that validate the reliability, robustness, and stability of Linux. In these days I’m having a journey on the project so with this article I want to show step by step how to setup the project, how tests are actually written and give you a quick and dirty guide to write your first one. ...