NewsNews
Linux 7.2 Is Out: What Embedded Teams Should Test First
Linux 7.2 is out. What actually changes for embedded: cache-aware scheduling, SPI NAND randomizer, dma-buf heaps as modules, dm-inlinecrypt, removals.
RB Aug 17 · 9 min
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Field notes from the Linux trenches
Deep dives, debugging war-stories and career guidance for engineers who work where the kernel meets real hardware.
News
Deep DivesDeep Dives
Writing a Minimal sched_ext Scheduler
How to write a minimal sched_ext scheduler: the four callbacks, the dispatch queue model, and how to build, load and verify it…
RB Aug 17 · 11 min
TutorialsTutorials
The regmap Subsystem: One Register API Across I2C, SPI and MMIO
Build a Linux I2C driver with the regmap subsystem: regmap_config, probe, the register cache, suspend and resume, and debugfs. Complete buildable code.
RB Aug 16 · 11 min
Kernel SecurityKernel Security
Linux Kernel CVEs: What to Patch by Device (9 – 15 Aug 2026)
1,086 Linux kernel CVEs (9-15 Aug 2026) with the minimum safe version per branch - including CVE-2026-74336, CVE-2026-74287 and what to patch…
RB Aug 15 · 20 min
CareerCareer
Freedom Gave Us a Chance. Building Is Our Responsibility.
On India's 80th Independence Day, a message to young engineers and learners: access is not capability, and building is the tribute that…
RB Aug 15 · 17 min
CareerCareer
How to Write a Kernel Bug Report Maintainers Act On
A kernel bug report that maintainers act on has a specific shape. How to pick the right kernel, check taint, find the…
RB Aug 14 · 15 min
InsightsInsights
Your 32-bit Product Will Fail in 2038. Your Build Will Not Stop It.
A 32-bit time_t stops working in 2038. OE-core fixes it by default only since Yocto 4.3, and the QA check that would…
RB Aug 13 · 13 min
Deep DivesDeep Dives
Embedded Linux Boot Time — Part 2: Measuring the Kernel and User Space
A long initcall is often a waiting initcall, and the log gives you no way to tell. How to read initcall_debug without…
RB Aug 13 · 20 min
CareerCareer
Why Engineers Need a Failure Portfolio, Not Just a Project Portfolio
A project portfolio shows what was built. A failure portfolio shows how an engineer thinks when the system does not match the…
RB Aug 12 · 14 min
System DesignSystem Design
Choosing a Root Filesystem Format for Embedded Linux
How to choose a root filesystem format for embedded Linux: ext4, f2fs, squashfs with overlayfs, or UBIFS on raw NAND — and…
RB Aug 12 · 8 min
NewsNews
Kernel & Embedded News: Linux 7.2 Final RC; FFmpeg 9.0 Released
Linux 7.2 rc7 closes the cycle; AI review lifts fix volume. FFmpeg 9.0 lands with an ABI break, a PCI lockdown gap…
RB Aug 11 · 12 min
TutorialsTutorials
Capturing a Kernel Crash Dump with kdump on ARM64
Set up kdump on an ARM64 board: reserve crashkernel memory, load a capture kernel with kexec -p, then trigger a panic and…
RB Aug 11 · 14 min
InsightsInsights
SoC Kernel Support: How to Tell If Yours Has Already Lapsed
SoC kernel support runs on three clocks: upstream LTS EOL, vendor branch head, silicon longevity. Check all three before choosing an SoC…
RB Aug 10 · 21 min
NewsNews
What fork() Actually Costs, and Why the Process-Builder RFC Does Not Fix It Yet
A process-builder API is proposed for Linux to replace fork()+exec(). We check the performance claim against kernel source and ask if it…
RB Aug 10 · 19 min
TutorialsTutorials
Kernel Dynamic Debug: Turning On pr_debug at Runtime
Kernel dynamic debug turns pr_debug and dev_dbg messages on at runtime, per file, function or module, with no kernel rebuild. A hands-on…
RB Aug 9 · 11 min
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