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today's leftovers

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Misc
  • The mysterious case of the Linux Page Table Isolation patches

    tl;dr: there is presently an embargoed security bug impacting apparently all contemporary CPU architectures that implement virtual memory, requiring hardware changes to fully resolve. Urgent development of a software mitigation is being done in the open and recently landed in the Linux kernel, and a similar mitigation began appearing in NT kernels in November. In the worst case the software fix causes huge slowdowns in typical workloads. There are hints the attack impacts common virtualization environments including Amazon EC2 and Google Compute Engine, and additional hints the exact attack may involve a new variant of Rowhammer.

  • systemd Breached One Million Lines Of Code In 2017

    Systemd had a busy 2017 and its code-base is now up to over one million lines.

    Systemd in 2017 saw 3,443 commits, which is actually the lowest point since 2012. But the commits were larger with having 418,903 lines of code added and 119,975 lines removed: a net gain of nearly 300,000 lines of code.

  • NuTyX 10.0-rc1 is release

    The NuTyX team is proud to annonce the first release candidat of the next major version 10 of NuTyX.

  • Arcan 0.5.4, Durden 0.4

    From left to right, we have a little Raspberry  running the ‘prio’ WM using the broadcom binary blob drivers (so lacks some of the features needed to run durden), with arcan and terminals eating up all of 20MB of ram. The left Macbook running OSX with Arcan/Durden in fullscreen, retina resolution, of course. The Macbook on the right is running the same system on OpenBSD 6.2. The three-headed monkey behind them is a voidlinux setup with two instances, one on an intel GPU, the other on an AMD GPU. If only the android devices on the wall could be brought in on the fun as well…

  • Arcan 0.5.4 Display Server Released With Durden 0.4 Desktop

    Remember Arcan? The Linux display server built off a game engine. The project is ending 2017 with the release of the Arcan 0.5.4 display server and its associated Durden v0.4 desktop.

    With the Arcan 0.5.4 release, its X.Org-backend has been ported to OpenBSD, its VRbridge tool now has basic OpenHMD support, improvements to its Wayland protocol handling, and a lot more.

  • LinuxJournal, Which Ceased Publication Last Month Citing Poor Financial Condition, Secures Fresh Fund From Readers To Resume Operation

    LinuxJournal announced in Nov 2017 that they were going to cease publication; With some timely intervention by Private Internet Access they are going to be able to continue operation and are currently soliciting feedback for improving the magazine in the future.

More in Tux Machines

BSD: FreeBSD 12.0 Beta and Upgrading OpenBSD with Ansible

Graphics: XRGEARS and Arcan's Latest

  • XRGEARS: Infamous "Gears" Now On VR Headsets With OpenHMD, Vulkan
    Well, the virtual reality (VR) demo scene is now complete with having glxgears-inspired gears and Utah teapot rendering on VR head mounted displays with the new XRGEARS. Kidding aside about the gears and teapot, XRGEARS is a nifty new open-source project with real value by Collabora developer Lubosz Sarnecki. XRGEARS is a standalone VR demo application built using the OpenHMD initiative for tracking and Vulkan for rendering. XRGEARS supports both Wayland and X11 environments or even running off KMS itself. This code also makes use of VK_EXT_direct_mode_display with DRM leasing.
  • Arcan versus Xorg – Approaching Feature Parity
    This is the first article out of three in a series where I will go through what I consider to be the relevant Xorg feature set, and compare it, point by point, to how the corresponding solution or category works in Arcan. This article will solely focus on the Display Server set of features and how they relate to Xorg features, The second article will cover the features that are currently missing (e.g. network transparency) when they have been accounted for. The third article will cover the features that are already present in Arcan (and there are quite a few of those) but does not exist in Xorg.
  • Arcan Display Server Is Nearing Feature Parity With The X.Org Server
    The Arcan display server, which started off years ago sounding like a novelty with being a display server built off a game engine in part and other interesting features, is nearing feature parity with the X.Org Server. While most hobbyist display server projects have failed, Arcan has continued advancing and with an interesting feature set. Recently they have even been working on a virtual reality desktop and an interesting desktop in general. Arcan is getting close to being able to offering the same functionality as a traditional X.Org Server. If you are interested in a lengthy technical read about the differences between Arcan and X.Org, the Arcan developers themselves did some comparing and contrasting when it comes to the display support, windowing, input, font management, synchronization, and other areas.

CoC/Systemd Supremacy Over Linux Kernel

  • New Linux Code of Conduct Revisions: CoC Committee Added Plus Interpretation & Mediator
    The Linux Code of Conduct introduced last month that ended up being quite contentious will see some revisions just ahead of the Linux 4.19 stable kernel release. Greg Kroah-Hartman has outlined the planned changes as well as a new Code of Conduct Interpretation document. In the weeks since the Linux kernel CoC was merged, various patches were proposed but none merged yet. It turns out Greg KH was working in private with various kernel maintainers/developers on addressing their feedback and trying to come up with solutions to the contentious issues in private.
  • Some kernel code-of-conduct refinements
    Greg Kroah-Hartman has posted a series of patches making some changes around the newly adopted code of conduct. In particular, it adds a new document describing how the code is to be interpreted in the kernel community.
  • Systemd Adds Feature To Fallback Automatically To Older Kernels On Failure
    Systemd's latest feature is the concept of "boot counting" that will track kernel boot attempts and failures as part of an automatic boot assessment. Ultimately this is to provide automatic fallback to older kernels should a newer kernel be consistently failing. The feature was crafted over the past few months by Lennart Poettering himself to provide a way when making use of systemd-boot on UEFI systems it can automatically fallback to an older kernel if a newer kernel is consistently causing problems. This is treated as an add-on to the Boot Loader Specification. The systemd boot assessment is designed that it could also be used by non-UEFI systems and other boot platforms.

ODROID 'Hacker Board'

  • ODROID Rolling Out New Intel-Powered Single Board Computer After Trying With Ryzen
    While ODROID is most known for their various ARM single board computers (SBCs), some of which offer impressive specs, they have dabbled in x86 SBCs and on Friday announced the Intel-powered ODROID-H2. In the announcement they mentioned as well they were exploring an AMD Ryzen 5 2500U powered SBC computer, which offered fast performance but the price ended up being prohibitive. After the falling out with Ryzen over those cost concerns, they decided to go ahead with an Intel Geminilake SoC. Geminilake is slower than their proposed Ryzen board, but the price was reasonable and it ends up still being much faster than ODROID's earlier Apollolake SBC.
  • Odroid-H2 is world’s first Gemini Lake hacker board
    Hardkernel unveiled the Odroid-H2, the first hacker board with an Intel Gemini Lake SoC. The Ubuntu 18.10 driven SBC ships with 2x SATA 3.0, 2x GbE, HDMI and DP, 4x USB, and an M.2 slot for NVMe. When the Odroid-H2 goes on sale in November at a price that will be “higher than $100,” Hardkernel will join a small group of vendors that have launched a community backed x86-based SBC. This first open spec hacker board built around Intel’s new Gemini Lake SoC — and one of the first Gemini Lake SBCs of any kind — follows earlier Arm-based Odroid winners such as the Odroid-C2 Raspberry Pi pseudo clone and the octa-core Odroid-XU4.