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Plans for Linux 5.3, Linux 5.2 and Linux Foundation's LF Energy

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Linux
  • Allwinner ARM Boards With SATA See Big Speed Boost From Single Line Patch

    Right now the low-end Allwinner ARM SBC boards featuring a SATA port have been running at a measly 36~45MB/s but with changing around a single line of kernel code, that can jump to 120MB/s.

    ARM SBCs are notorious with slow I/O particularly when piggybacking off USB or just relying upon a microSD card, but for those using SATA HDD/SSD storage with Allwinner boards, that performance is about to get a whole lot better. Uenal Mutlu discovered that by changing around some bits for increasing the SATA/AHCI DMA TX/RX FIFOs, the performance can improve by multiple times for hardware relying upon the Linux kernel's AHCI_SUNXI driver.

    [...]

    For now the patch is on the kernel mailing list but hopefully will be deemed reliable enough for making it into Linux 5.3.

  • F2FS For Linux 5.2 Sees Better SMR Drive Support, Various Fixes

    While no flashy features like EXT4's case-insensitive option with Linux 5.2, the Flash-Friendly File-System (F2FS) did see a good amount of fixes and other improvements for this new kernel round.

    F2FS continues seeing more adoption particularly on Google Android devices and that has led into an uptick in fixes now that more vendors are evaluating this file-system optimized for non-rotating drives. Jaegeuk Kim sent in the F2FS changes for Linux 5.2 on Monday and it's again heavy on the fixes.

  • LF Energy Ecosystem Gains Momentum for Open Source Innovation With New Members and Projects

    LF Energy, a Linux Foundation initiative developing and sustaining open source technology innovation in the energy and electricity sectors, is rapidly growing its community with additional founding Premier member, Faraday Grid, joining RTE. New General members include IBM, OSISoft, and Recurve; while Elering AS, Energinet, Energy Foundation, École Polytechnique Fédérale de Lausanne, Fraunhofer IEE, FIWARE Foundation, Iowa State University, Monash University, National Renewable Energy Laboratory (NREL), North Carolina State University FREEDM Center, Project Haystack, Stanford University, TenneT, The Energy Coalition, University of Kassel, and Washington State University join European Network of Transmission System Operators (ENTSO-E) and Vanderbilt University as new Associate members.

More in Tux Machines

Security Leftovers

  • Why Are Cryptographers Being Denied Entry into the US?

    Is there some cryptographer blacklist? Is something else going on? A lot of us would like to know.

  • Security Engineering: Third Edition

    Today I put online a chapter on Who is the Opponent, which draws together what we learned from Snowden and others about the capabilities of state actors, together with what we’ve learned about cybercrime actors as a result of running the Cambridge Cybercrime Centre. Isn’t it odd that almost six years after Snowden, nobody’s tried to pull together what we learned into a coherent summary?

    There’s also a chapter on Surveillance or Privacy which looks at policy. What’s the privacy landscape now, and what might we expect from the tussles over data retention, government backdoors and censorship more generally?

  • Google halts some business with China's Huawei: report

    Huawei will reportedly no longer be able to access Android updates, the Gmail app, the Google Play store and new versions of Google phones outside of China.

  • Google restricts Huawei's use of Android

    Existing Huawei smartphone users will be able to update apps and push through security fixes, as well as update Google Play services.

    But when Google launches the next version of Android later this year, it may not be available on Huawei devices.

    Future Huawei devices may no longer have apps such as YouTube and Maps.

  • Forget Huawei, The Internet Of Things Is The Real Security Threat
    We've noted for a while how a lot of the US protectionist security hysteria surrounding Huawei isn't supported by much in the way of hard data. And while it's certainly possible that Huawei helps the Chinese government spy, the reality is that Chinese (or any other) intelligence services don't really need to rely on Huawei to spy on the American public. Why? Because people around the world keep connecting millions of internet of broken things devices to their home and business networks that lack even the most rudimentary of security and privacy protections. Week after week we've documented how these devices are being built with both privacy and security as a distant afterthought, resulting in everything from your television to your refrigerator creating both new attack vectors and wonderful new surveillance opportunities for hackers and state actors.

today's howtos

Android Leftovers

A Look At The MDS Cost On Xeon, EPYC & Xeon Total Impact Of Affected CPU Vulnerabilities

This weekend I posted a number of benchmarks looking at the performance impact of the new MDS/Zombieload vulnerabilities that also included a look at the overall cost of Spectre/Meltdown/L1TF/MDS on Intel desktop CPUs and AMD CPUs (Spectre). In this article are similar benchmarks but turning the attention now to Intel Xeon hardware and also comparing those total mitigation costs against AMD EPYC with its Spectre mitigations. This article offers a look at the MDS/Zombieload mitigations on a 1st Gen Skylake Xeon Scalable server as well as a Kabylake Xeon E3 server for reference. Following that is a look at the total CPU vulnerability mitigation costs for 1st Gen Xeon Scalable, 2nd Gen Xeon Scalable (Cascade Lake), and an AMD EPYC 2P server as well for its Spectre mitigations. As expected given Intel's guidance last week of their latest Xeon processors being mitigated for MDS, indeed, the dual Xeon Platinum 8280 Cascade Lake server reported it was not affected by the MDS mitigations and thus not enabled. So for the MDS tests up first it's just some reference results using a dual Xeon Gold 6138 Skylake server running Ubuntu 19.04 with the Linux 5.0 patched kernel and reference results side-by-side for a separate Xeon E3-1275 v6 server. Read more