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Updated: 2 hours 27 min ago

Latest $20 Orange Pi runs Android 7.0 on new Allwinner H6

Friday 29th of December 2017 05:37:19 PM
The video-focused “Orange Pi One Plus” updates the Orange Pi One design with a new, 10-bit HDR 4K enabled quad -A53 Allwinner H6 SoC with Mali-T720, and provides GbE and HDMI 2.0 ports. Shenzhen Xunlong has updated its $10, two-year old Orange Pi One SBC with a similarly open source, $20 Orange Pi One Plus […]

Open source, sandwich-style CubieAIO SBCs tap the Actions S700 and S500 SoCs

Thursday 28th of December 2017 10:52:38 PM
CubieTech unveiled “CubieAIO-S700” and “CubieAIO-S500” SBCs, and opened global sales of the CubieBoard6. Like the CubieBoard7, all are based on Actions Sx00 SoCs. CubieTech’s CubieBoard line of open source ARM SBCs was once a major contender in the hacker board market, but there hasn’t been much shaking over the last few years. That changed in […]

Ice station Linux

Wednesday 27th of December 2017 10:29:17 PM
Satish Chetty describes how he designed a Linux-based science station to measure Arctic sea ice melt — and faced obstacles ranging from -40°C temps to polar bears. Developing an embedded system for remote field duty is hard enough, but what if you had to contend with -40ºC temperatures, high winds, ice-encased cables, and attacks from […]

Rugged COM Express module offers 6-core Atom C3000 and 4x 10GbE

Wednesday 27th of December 2017 12:16:52 AM
Adlink’s Linux ready “Express-DN7” is a Type 7 module with an up to 16-core Atom C3000 SoC, 4x 10GBASE-KR ports, PTP, and a new Express-BASE7 carrier. The first COM Express Type 7 modules, including Adlink’s Express-BD7, launched with 5th “Gen Broadwell” Pentium and Xeon processors. More recently, we’ve seen a trend toward using the Intel […]

More in Tux Machines

PlayOnLinux For Easier Use Of Wine

PlayOnLinux is a free program that helps to install, run, and manage Windows software on Linux. It can also manage virtual C: drives (known as Wine prefixes), and download and install certain Windows libraries for getting some software to run on Wine properly. Creating different drives using different Wine versions is also possible. It is very handy because what runs well in one version may not run as well (if at all) on a newer version. There is PlayOnMac for macOS and PlayOnBSD for FreeBSD. Read
more

Linux Kernel: KPTI, SEV, CBS

  • Experimental KPTI Support For x86 32-bit Linux
    For the Kernel Page Table Isolation (KPTI) support currently within the Linux kernel for addressing the Meltdown CPU vulnerability it's currently limited to 64-bit on the x86 side, but for the unfortunate souls still running x86 32-bit operating systems, SUSE is working on such support.
  • AMD Secure Encrypted Virtualization Is Ready To Roll With Linux 4.16
    With the Linux 4.16 kernel cycle that is expected to begin immediately following the Linux 4.15 kernel debut on Sunday, AMD's Secure Encrypted Virtualization (SEV) technology supported by their new EPYC processors will be mainline. Going back to the end of 2016 have been Linux patches for Secure Encrypted Virtualization while with Linux 4.16 it will finally be part of the mainline kernel and supported with KVM (Kernel-based Virtual Machine) virtualization.
  • Deadline scheduler part 2 — details and usage
    Linux’s deadline scheduler is a global early deadline first scheduler for sporadic tasks with constrained deadlines. These terms were defined in the first part of this series. In this installment, the details of the Linux deadline scheduler and how it can be used will be examined. The deadline scheduler prioritizes the tasks according to the task’s job deadline: the earliest absolute deadline first. For a system with M processors, the M earliest deadline jobs will be selected to run on the M processors. The Linux deadline scheduler also implements the constant bandwidth server (CBS) algorithm, which is a resource-reservation protocol. CBS is used to guarantee that each task will receive its full run time during every period. At every activation of a task, the CBS replenishes the task’s run time. As the job runs, it consumes that time; if the task runs out, it will be throttled and descheduled. In this case, the task will be able to run only after the next replenishment at the beginning of the next period. Therefore, CBS is used to both guarantee each task’s CPU time based on its timing requirements and to prevent a misbehaving task from running for more than its run time and causing problems to other jobs.

Graphics: Mesa and AMDGPU

  • Mesa 17.3.3 Released With RADV & ANV Vulkan Driver Fixes
    Mesa 17.3.3 is now available as the latest point release for the Mesa 17.3 stable series. This bi-weekly point release to Mesa presents several RADV Vega/GFX9 fixes, various Intel ANV Vulkan driver fixes, a DRI3 fix, and random fixes to the OpenGL drivers like RadeonSI, Etnaviv, and even Swrast.
  • R600g "Soft" FP64 Shows Signs Of Life, Enabling Older GPUs To Have OpenGL 4 In 2018
    Most pre-GCN AMD graphics cards are still limited to OpenGL 3.3 support at this time due to not supporting FP64. Only the HD 5800/6900 series on R600g currently have real double-precision floating-point support working right now so at present they are on OpenGL 4.3 rather than 3.3, but those other generations may be catching up soon thanks to the "soft" FP64 code.
  • AMDGPU DC Gets More Raven Ridge Improvements, Audio Fixes
    Harry Wentland of AMD has sent out the latest batch of patches for the AMDGPU DC display code stack. Fortunately it lightens up the DRM driver by about six thousand lines thanks to removing some unused code. Besides gutting out a chunk of unused code, the DC code has a few audio fixes (no word yet on supporting newer audio formats with DC), fixes on driver unload, a "bunch" of continued Raven Ridge display updates, and various other code clean-ups.
  • AMDGPU Firmware Blobs Updated For Video Encode/Decode
    There are updated AMDGPU microcode/firmware files now available for recent Radeon GPUs. The updated firmware files now available via the main linux-firmware.git repository are centered around the video blocks: UVD video decoding, VCE video encode, and the new VCN video encode/decode block with Raven Ridge.

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