News Category: Linux Kernel

STIBP, Collaborate, and Listen: Linus Floats Linux Kernel That 'Fixes' Intel CPUs' Spectre Slowdown

Linus Torvalds has stuck to his “no swearing” resolution with his regular Sunday night Linux kernel release candidate announcement. Probably the most important aspect of the weekend's release candidate is that it, in a way, improves the performance of STIBP, which is a mitigation that stops malware...
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Linus Torvalds: After Big Linux Performance Hit, Spectre v2 Patch Needs Curbs

Major slowdowns caused by the new Linux 4.20 kernel have been traced to a mitigation for Spectre variant 2 that Linux founder Linus Torvalds now wants restricted. As noted by Linux news site Phoronix, the sudden slowdowns have been caused by a newly implemented mitigation called Single Thread...
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Virtualizing the Clock

Dmitry Safonov wanted to implement a namespace for time information. The twisted and bizarre thing about virtual machines is that they get more virtual all the time. There's always some new element of the host system that can be given its own namespace and enter the realm of the virtual machine....
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Facebook Open-Sources New Suite of Linux Kernel Components and Tools

Today, we are announcing a suite of open source Linux kernel components and related tools that address critical fleet management issues. These include resource control, resource utilization, workload isolation, load balancing, measuring, monitoring, and much more. Kernel and kernel application...
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Internationalizing the Kernel

At a time when many companies are rushing to internationalize their products and services to appeal to the broadest possible market, the Linux kernel is actively resisting that trend, although it already has taken over the broadest possible marketthe infrastructure of the entire world. David...
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​Linus Torvalds Talks About Coming Back to Work on Linux

While in Edinburgh, I caught up with Linus Torvalds. He confided his thoughts about returning to Linux, the Code of Conduct, and some software, BPF, which is fundamentally changing how the Linux kernel and user space work together. Linus Torvalds quietly met with Linux's top 40 or so developers at...
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​Revised Linux Code of Conduct is Now Officially Part of Linux

Some organizations might not include their Code of Conductin the software source code tree, but the Linux developers aren't your ordinary group. In the Linux 4.19 announcement, Greg Kroah-Hartman, Linux's leader for this release and maintainer of the stable branch, added in the Code of Conduct and...
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LinuxBoot for Servers: Enter Open Source, Goodbye Proprietary UEFI

LinuxBoot is an Open Source alternative to Proprietary UEFI firmware. It was released last year and is now being increasingly preferred by leading hardware manufacturers as default firmware. Last year, LinuxBoot was warmly welcomedinto the Open Source family by The Linux Foundation. This project...
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Dealing with printk()

It's odd that printk() would pose so many problems for kernel development, given that it's essentially just a replacement for printf() that doesn't require linking the standard C library into the kernel. And yet, it's famously a mess, full of edge cases, corner cases, deadlocks, race conditions and...
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Support for a LoRaWAN Subsystem

Sometimes kernel developers find themselves competing with each other to get their version of a particular feature into the kernel. But sometimes developers discover they've been working along very similar lines, and the only reason they hadn't been working together was that they just didn't know...
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