isolcpus= takes CPUs off the scheduler. Hardware IRQs still land there.
The blunt tool is still in a lot of GRUB files: GRUB_CMDLINE_LINUX_DEFAULT = "isolcpus=0,1" Then update-grub (or grub2-mkconfig ) and reboot. Usersp…
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The blunt tool is still in a lot of GRUB files: GRUB_CMDLINE_LINUX_DEFAULT = "isolcpus=0,1" Then update-grub (or grub2-mkconfig ) and reboot. Usersp…
For hardware your company owns and intends to ship for years, default to putting the driver in mainline and carrying only the part you have not land…
The Linux DMA API exists because the address a device uses is not the address the CPU uses, and because on most embedded SoCs the CPU cache is not k…
Технология eBPF (extended Berkeley Packet Filter) берет свое начало от классического BPF, разработанного в начале 1990-х годов как механизма фильтра…
I didn't start RVBBIT with the idea of building a security framework. It was much simpler than that. I wanted to understand Linux rootkits beyond re…
Linux 7.2 is expected as a stable release around 16 August 2026, so teams carrying an embedded BSP should test against the release candidates now, e…
Mainline-friendly products are designed so their board support lives in upstream Linux, U-Boot, and standard build systems instead of a vendor fork.…
Devres is the kernel's mechanism for managed device resources: every devm_* allocation is recorded on a per-device list, and the driver core release…
Most Linux kernel modules are written in C. The reasons are obvious: The kernel APIs are designed around C. Documentation assumes C. The build syste…
Improved efficiency in EPP mode leads to ~32% jump in "1% low" frame rates.
Originally published on tamiz.pro . GhostLock, designated CVE-2023-32233, is a use-after-free (UAF) vulnerability discovered in the Linux kernel's N…
В прошлой статье мы собрали готовый образ Linux и запустили I2C Master Controller который живет в ПЛИС и управляется драйвером предоставляющим в ОС…
Загрузка операционной системы — процесс многоступенчатый и разнообразный. Несколько лет назад я писал о процессе загрузки сервера x86 в режимах Lega…
Use-after-free bug can be exploited to evade sandbox defenses.
For the past couple months I have been working on a custom open-source Unix like kernel built from the ground up in C and ASM, im looking for some f…
When you want to work on the Linux kernel, for example to see how an exploit acts (like Dirty COW on kernel 4.7), you need to build a comfortable wo…
Каждую неделю появляется новая песочница для агентов. Большинство таких решений опирается на встроенные механизмы Linux: namespaces, seccomp, cgroup…
Sudden Increase in Swap Usage: Symptoms and Initial Findings This morning, when I connected to my server, I wanted to check the system health before…
Last week, precisely on a Monday morning, the "Critical Alert" notifications on my monitor struck fear into my eyes. The systems running on my own V…
Want to keep Ubuntu updated? Run these commands on your PC via terminal, or create a .sh file and add the following commands: Bash sudo apt update &…