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Kernel Space: Linux, Graphics

Filed under
Graphics/Benchmarks
Linux
  • Linux kernel bug delivers corrupt TCP/IP data to Mesos, Kubernetes, Docker containers

    The Linux Kernel has a bug that causes containers that use veth devices for network routing (such as Docker on IPv6, Kubernetes, Google Container Engine, and Mesos) to not check TCP checksums. This results in applications incorrectly receiving corrupt data in a number of situations, such as with bad networking hardware. The bug dates back at least three years and is present in kernels as far back as we’ve tested. Our patch has been reviewed and accepted into the kernel, and is currently being backported to -stable releases back to 3.14 in different distributions (such as Suse, and Canonical). If you use containers in your setup, I recommend you apply this patch or deploy a kernel with this patch when it becomes available. Note: Docker’s default NAT networking is not affected and, in practice, Google Container Engine is likely protected from hardware errors by its virtualized network.

  • Performance problems

    Just over a year ago I implemented an optimization to the SPI core code in Linux that avoids some needless context switches to a worker thread in the main data path that most clients use. This was really nice, it was simple to do but saved a bunch of work for most drivers using SPI and made things noticeably faster. The code got merged in v4.0 and that was that, I kept on kicking a few more ideas for optimizations in this area around but that was that until the past month.

  • Compute Shader Code Begins Landing For Gallium3D

    Samuel Pitoiset began pushing his Gallium3D Mesa state tracker changes this morning for supporting compute shaders via the GL_ARB_compute_shader extension.

    Before getting too excited, the hardware drivers haven't yet implemented the support. It was back in December that core Mesa received its treatment for compute shader support and came with Intel's i965 driver implementing CS.

  • Libav Finally Lands VDPAU Support For Accelerated HEVC Decoding

    While FFmpeg has offered hardware-accelerated HEVC decoding using NVIDIA's VDPAU API since last summer, this support for the FFmpeg-forked libav landed just today.

    In June was when FFmpeg added support to its libavcodec for handling HEVC/H.265 video decoding via NVIDIA's Video Decode and Presentation API for Unix interface. Around that same time, developer Philip Langdale who had done the FFmpeg patch, also submitted the patch for Libav for decoding HEVC content through VDPAU where supported.

More in Tux Machines

Android, Android on Desktops (Android-x86), Samsung Galaxy on Desktop/DeX

  • Pixel 2 Has Screen Burn-In Problem, Google Says They’re “Actively Investigating” The Report
    Android Central has reported that their Pixel 2 XL review unit is having screen burn-in issues. That’s a bad thing for the latest made-by-Google flagship which was announced earlier on October 4, ditching the headphone jack.
  • Android-x86 7.1-rc2 Now Supports NVMe SSDs, Better QEMU VirGL
    The Android-x86 project derived from Google's Android Open-Source Project code-base remains officially at Android 6.0, but there is an Android 7.1 "Nougat" build available for testing. Quietly released earlier this month was a second release candidate based on Android 7.1. The Android-x86 7.1-RC2 release is based on upstream AOSP 7.1-RC2 / Nougat-MR2 along with some extra improvements for this x86-targeted build.
  • What To Do When The Power Button Of Your Android Phone Is Broken?
  • Samsung is adding Linux support for DeX with the new ‘Linux on Galaxy’ app
    Since Samsung debuted the DeX feature earlier this year with the Galaxy S8 and Galaxy S8+ smartphones, the company has been making small changes to improve the whole experience of using your smartphone as a PC. In order to further enhance Samsung DeX, the company has announced “Linux on Galaxy”, an app that will let developers run Linux-based distributions on their mobile device, allowing them to code on-the-go. The app is DeX-enabled, which means developers can code on a bigger device, powered by their Galaxy S8, Galaxy S8+ or Galaxy Note8.
  • You can run any Linux distro on Samsung smartphones using Linux with Galaxy App
    The convergence of a smartphone with a PC/laptop is not new and has been in making for several years. In fact, the idea of such a convergence started with Nokia’s Communicator phone launched in 1996 when it was the undisputed king of feature phone and mobile phone arena. Ubuntu devs tried a similar theme with the now-dead Ubuntu for smartphones and tablets. The Ubuntu os was launched with the idea to run full Linux apps on your smartphone. The smartphone even gave users an option to connect a keyboard, mouse, and display. However, that did not sell.

Linux Foundation Announcements: CIP, OpenMessaging, CDLA

  • Civil Infrastructure Platform Announces the Release of CIP Core
    Hosted by The Linux Foundation, CIP addresses the needs of long-term software for the power generation and distribution, water, oil and gas, transportation and building automation industries. CIP members such as Codethink, Hitachi, Plat'Home, Renesas, Siemens and Toshiba are working to create a reliable and secure Linux-based embedded software platform that can be sustained more than 10 years and up to 60 years.
  • Linux Foundation Launches OpenMessaging Project
    ​Through a shared exertion bnb m from endeavors and groups put resources into the cloud, enormous information, and standard APIs, I'm eager to welcome the OpenMessaging project from The Linux Foundation. The OpenMessaging group will likely make a comprehensively embraced, merchant impartial, and open standard for dispersed informing that can be conveyed in the cloud, on-commence, and half and half utilize cases.
  • Linux Foundation Debuts Community Data License Agreement
    he Linux Foundation, the nonprofit advancing professional open source management for mass collaboration, today announced the Community Data License Agreement (CDLA) family of open data agreements. In an era of expansive and often underused data, the CDLA licenses are an effort to define a licensing framework to support collaborative communities built around curating and sharing "open" data.
  • The Linux Foundation Releases Three New Open Source Guides for the Enterprise
    The Linux Foundation, the nonprofit organization enabling mass innovation through open source, has released the next three in a series of Open Source Guides for the Enterprise, created to help executives, open source program managers, developers, attorneys and other decision makers learn how to best leverage open source. These three new guides add to the six released last month at Open Source Summit North America.

openSUSE Tumbleweed Linux OS Patched Against WPA2 KRACK Bug, GCC 6 Now Removed

If you're using the openSUSE Tumbleweed operating system, you should know that one of the latest snapshots removed the GCC (GNU Compiler Collection) 6 packages from the default install and patched it against the WPA2 KRACK security vulnerability. Read more

Librem 5 Linux Phone to Include Nextcloud's End-to-End Encrypted File Storage

Purism and Nextcloud announced partnership to bring Nextcloud's end-to-end encrypted file sync and sharing services to Purism's mobile and desktop computing products Read more Also: Librem 5 Privacy-Focused Linux Phone Crowdfunding Campaign Ends with $2 Million Nextcloud to be available on 'free' smartphone