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Sunday, 19 Aug 18 - Tux Machines is a community-driven public service/news site which has been around for over a decade and primarily focuses on GNU/LinuxSubscribe now Syndicate content

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Linux Scaling Benchmarks With The AMD Threadripper 2990WX In Various Workloads

Filed under
Graphics/Benchmarks

While yesterday were the benchmarks showing how Linux games struggle to scale past a few CPU cores/threads, in this article is a look at the scaling performance of various applications/workloads under Linux up to 64 threads using the AMD Threadripper 2990WX. Here's a look at how the Linux performance changes in a variety of applications from one to sixty-four threads with this new HEDT processor.

The benchmarks today are for mostly curiosity sake about Linux and the Threadripper 2990WX, particularly on the impact of 32 threads (cores) to 64 threads with SMT, etc. In the next few days is a much more interesting comparison and that is looking at the Windows Server 2019 vs. Linux performance on the Threadripper 2990WX at various SMT and CCX configurations. That should reveal a lot about Windows' scaling abilities given the immense interest this week in the Windows vs. Linux Threadripper performance. But for today are just these reference numbers.

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AryaLinux: A Distribution and a Platform

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Linux

I’ll be honest, if you’re just a standard desktop user, AryaLinux is not for you. Although you can certainly get right to work on the desktop, if you need anything outside of the default applications, you might find it a bit too much trouble to bother with. If, on the other hand, you’re a developer, AryaLinux might be a great platform for you. Or, if you just want to see what it’s like to build a Linux distribution from scratch, AryaLinux is a pretty easy route.

Even with its quirks, AryaLinux holds a lot of promise as both a Linux distribution and platform. If the developers can see to it to build a GUI front-end for the alps package manager, AryaLinux could make some serious noise.

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Lennart Jern: How Do You Fedora?

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Red Hat
Interviews

Lennart Jern is a Swedish-speaking Finn, who has been living in Umeå, Sweden, for about three years. He was born and raised in southern Finland where he obtained his master’s degree in applied mathematics. His time at university exposed Lennart’s true passion. “While at the university, I realized that computer science was really what I wanted to work with.” In order to follow his dream of working in computer science he moved to Sweden with his wife to pursue a master’s program in computer science. After a short while he had learned enough to land a job with a local startup. “I’m working with cloud/distributed systems, specifically with tools like kubernetes and OpenShift.”

Lennart’s first contact with Linux was in 2006. Some of the computers in his high school were running OpenSuse. He installed Ubuntu’s Hardy Heron in 2008 and has been using Linux ever since.

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Security: WebAssembly, HTTP Tokens and More

Filed under
Security
  • The Problems and Promise of WebAssembly

    WebAssembly is a format that allows code written in assembly-like instructions to be run from JavaScript. It has recently been implemented in all four major browsers. We reviewed each browser’s WebAssembly implementation and found three vulnerabilities. This blog post gives an overview of the features and attack surface of WebAssembly, as well as the vulnerabilities we found.

    [...]

    Overall, the majority of the bugs we found in WebAssembly were related to the parsing of WebAssembly binaries, and this has been mirrored in vulnerabilities reported by other parties. Also, compared to other recent browser features, surprisingly few vulnerabilities have been reported in it. This is likely due to the simplicity of the current design, especially with regards to memory management.

    There are two emerging features of WebAssembly that are likely to have a security impact. One is threading. Currently, WebAssembly only supports concurrency via JavaScript workers, but this is likely to change. Since JavaScript is designed assuming that this is the only concurrency model, WebAssembly threading has the potential to require a lot of code to be thread safe that did not previously need to be, and this could lead to security problems.

    WebAssembly GC is another potential feature of WebAssembly that could lead to security problems. Currently, some uses of WebAssembly have performance problems due to the lack of higher-level memory management in WebAssembly. For example, it is difficult to implement a performant Java Virtual Machine in WebAssembly. If WebAssembly GC is implemented, it will increase the number of applications that WebAssembly can be used for, but it will also make it more likely that vulnerabilities related to memory management will occur in both WebAssembly engines and applications written in WebAssembly.

  • Detecting Bomb And Guns Using Normal WiFi: Researchers Find A New Way

    The test was able to give out accurate results on 15 different objects ranging in there different categories — Metal, liquid, and non-dangerous items.

    While it’s not clear whether the government will adopt and use the newly developed tracking method in public places, this certainly looks like the best way to stop guns and bombs get into school premises.

  • What OpenShift Online customers should know about L1TF OpenShift SRE Security

    On Aug. 14, 2018, information was released about another set of “speculative execution” issues with Intel microprocessor hardware known as “L1 Terminal Fault”. As with earlier issues like Spectre and Meltdown, this information was coordinated with the release of updated software solutions to help mitigate the issue.

    At the time the embargo was lifted, the OpenShift SRE team worked to begin remediation (detailed below) on all OpenShift Online clusters. All Pro clusters finished remediation shortly before 18h00 EDT August 14, 2018. All Starter clusters were patched as of 23h30 EDT August 14, 2018.

  • L1TF (AKA Foreshadow) Explained in 3 Minutes from Red Hat
  • Google bod wants cookies to crumble and be remade into something more secure

    A key member of the Google Chrome security team has proposed the death of cookies to be replaced with secure HTTP tokens.

    This week Mike West posted his "not-fully-baked" idea on GitHub and asked for comments. "This isn't a proposal that's well thought out, and stamped solidly with the Google Seal of Approval," he warns. "It's a collection of interesting ideas for discussion, nothing more, nothing less."

    So far, people are largely receptive to the idea while pointing to the complexities that exist in trying to replace something that has become an everyday part of online interaction.

  • Mozilla Recommend a Privacy Extension That Is Tracking Your Web History

    Web Security, a Firefox extension with over 200,000 current users, tracks every website users visit and stores that information on a German web server.

    The extension was recommended by Mozilla in a blog post last week about add-ons that improve users’ privacy. Mozilla has since edited the post, removing Web Security.

Programming: Perl, Python, CRAN

Filed under
Development
  • Garbage collection in Perl 6

    In the first article in this series on migrating Perl 5 code to Perl 6, we looked into some of the issues you might encounter when porting your code. In this second article, we’ll get into how garbage collection differs in Perl 6.

    There is no timely destruction of objects in Perl 6. This revelation usually comes as quite a shock to people used to the semantics of object destruction in Perl 5. But worry not, there are other ways in Perl 6 to get the same behavior, albeit requiring a little more thought by the developer. Let’s first examine a little background on the situation in Perl 5.

  • An introduction to the Django Python web app framework

    In the first three articles of this four-part series comparing different Python web frameworks, we covered the Pyramid, Flask, and Tornado web frameworks. We've built the same app three times and have finally made our way to Django. Django is, by and large, the major web framework for Python developers these days and it's not too hard to see why. It excels in hiding a lot of the configuration logic and letting you focus on being able to build big, quickly.

    That said, when it comes to small projects, like our To-Do List app, Django can be a bit like bringing a firehose to a water gun fight. Let's see how it all comes together.

  • Dirk Eddelbuettel: RcppArmadillo 0.9.100.5.0

    A new RcppArmadillo release 0.9.100.5.0, based on the new Armadillo release 9.100.5 from earlier today, is now on CRAN and in Debian.

    It once again follows our (and Conrad's) bi-monthly release schedule. Conrad started with a new 9.100.* series a few days ago. I ran reverse-depends checks and found an issue which he promptly addressed; CRAN found another which he also very promptly addressed. It remains a true pleasure to work with such experienced professionals as Conrad (with whom I finally had a beer around the recent useR! in his home town) and of course the CRAN team whose superb package repository truly is the bedrock of the R community.

Red Hat News/Leftovers

Filed under
Red Hat

Cloudgizer: An introduction to a new open source web development tool

Filed under
OSS
HowTos

Cloudgizer is a free open source tool for building web applications. It combines the ease of scripting languages with the performance of C, helping manage the development effort and run-time resources for cloud applications.

Cloudgizer works on Red Hat/CentOS Linux with the Apache web server and MariaDB database. It is licensed under Apache License version 2.

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James Bottomley on Linux, Containers, and the Leading Edge

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Linux

It’s no secret that Linux is basically the operating system of containers, and containers are the future of the cloud, says James Bottomley, Distinguished Engineer at IBM Research and Linux kernel developer. Bottomley, who can often be seen at open source events in his signature bow tie, is focused these days on security systems like the Trusted Platform Module and the fundamentals of container technology.

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TransmogrifAI From Salesforce

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OSS
  • Salesforce plans to open-source the technology behind its Einstein machine-learning services

    Salesforce is open-sourcing the method it has developed for using machine-learning techniques at scale — without mixing valuable customer data — in hopes other companies struggling with data science problems can benefit from its work.

    The company plans to announce Thursday that TransmogrifAI, which is a key part of the Einstein machine-learning services that it believes are the future of its flagship Sales Cloud and related services, will be available for anyone to use in their software-as-a-service applications. Consisting of less than 10 lines of code written on top of the widely used Apache Spark open-source project, it is the result of years of work on training machine-learning models to predict customer behavior without dumping all of that data into a common training ground, said Shubha Nabar, senior director of data science for Salesforce Einstein.

  • Salesforce open-sources TransmogrifAI, the machine learning library that powers Einstein

    Machine learning models — artificial intelligence (AI) that identifies relationships among hundreds, thousands, or even millions of data points — are rarely easy to architect. Data scientists spend weeks and months not only preprocessing the data on which the models are to be trained, but extracting useful features (i.e., the data types) from that data, narrowing down algorithms, and ultimately building (or attempting to build) a system that performs well not just within the confines of a lab, but in the real world.

Windows Games On Linux and Linux Gaming Performance

Filed under
GNU
Graphics/Benchmarks
Linux
  • Windows Games On Linux? Valve May Be Working On New “Steam Play” Tool

    Even though there are quite a few Linux-based distro options for gamers, hardcore gamers often go back to Windows to play the games they love. SteamOS from Valve, the most popular gaming Linux distro, seems to be making headlines from time-to-time, but things have been quiet for some time.

  • A Look At Linux Gaming Performance Scaling On The Threadripper 2950X

    On Monday when the launch embargo expired on the Threadripper 2950X and Threadripper 2990WX I hadn't run any gaming benchmarks since, well, most games even on Windows can't scale out to 32 threads let alone 64 threads... Especially on Linux. It's far more practical getting these Threadripper 2 processors if you want to compile with 32 or 64 make jobs -- among many other common multi-threaded Linux workloads -- versus using this $899 or $1799 processor for a Linux gaming system. But if you are curious how Linux games scale with the Threadripper 2950X, here are some benchmark results when testing both AMD Radeon and NVIDIA GeForce graphics.

Kernel: Linux 4.19 and Security Aspects

Filed under
Linux
  • Some Of The Smaller Features Hitting The Linux 4.19 Kernel This Week

    Here is a look at some of the smaller features landing in the Linux 4.19 kernel this week in a variety of different subsystems.

  • Linux Kernel Diverts Question To Distros: Trust CPU Hardware Random Number Generators?

    In a controversial move, the Linux kernel will be pushing the question off to distribution vendors on whether to put trust in CPU hardware random number generators.

    Google's Ted Ts'o sent out the random subsystem updates this week for the Linux 4.19 kernel merge window. In addition to the recent change of better protecting entropy sent in from user-space, the decision on whether to trust the CPU hardware random number generators like Intel's RdRand will now be left up to the Linux distribution vendors or end-users having the final say in overriding that decision.

  • L1TF / Foreshadow Mitigations Land In Linux 4.18 / 4.17 / 4.14 / 4.9 / 4.4 Kernel Update

    Linux stable maintainer Greg Kroah-Hartman has released new updates across the Linux 4.18, 4.17, 4.14, 4.9, and 4.4 kernel channels to address the recently exposed L1 Terminal Fault "L1TF" / Foreshadow Meltdown-like CPU vulnerability affecting Intel processors.

    Linux 4.4.148, 4.9.120, 4.14.63, 4.17.15, and 4.18.1 are all out this morning with their principal changes in these patch releases being the inclusion of L1TF/Foreshadow mitigation. As covered already, the default behavior is to carry out conditional L1D flushes on VMENTER, but there are kernel knobs available for always forcing L1 cache flushes on VMENTER and the full protection of disabling SMP/HT support.

  • Linux 4.19 Goes Ahead And Makes Lazy TLB Mode Lazier For Small Performance Benefit

    Last month I wrote about lazy TLB mode improvements on the way to the mainline kernel and this week the changes were indeed merged for the in-development Linux 4.19 kernel.

ASUS Begins Offering Linux-Based Endless OS On Select Laptops

Filed under
GNU
Linux
Hardware

It has been a while since ASUS last offered any Linux options for laptops, but they appear to have a new effort underway with Endless OS.

For those that remember Eee PC from a decade ago, ASUS used to offer some Linux laptops/netbook options that back was using Xandros Linux during the netbook fad...

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Games: Fell Seal: Arbiter's Mark, Orwell, Megaquarium, Moonlighter

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Gaming

today's leftovers

Filed under
Misc
  • libinput's "new" trackpoint acceleration method

    This is mostly a request for testing, because I've received zero feedback on the patches that I merged a month ago and libinput 1.12 is due to be out. No comments so far on the RC1 and RC2 either, so... well, maybe this gets a bit broader attention so we can address some things before the release. One can hope.

    [...]

    Because basically every trackpoint has different random data ranges not linked to anything easily measurable, libinput's device quirks now support a magic multiplier to scale the trackpoint range into something resembling a sane range. This is basically what we did before with the systemd POINTINGSTICK_CONST_ACCEL property except that we're handling this in libinput now (which is where acceleration is handled, so it kinda makes sense to move it here). There is no good conversion from the previous trackpoint range property to the new multiplier because the range didn't really have any relation to the physical input users expected.

  • 15 Tips On How to Use ‘Curl’ Command in Linux
  • Disassembling JITed code in GDB
  • PSA: Workaround for a working MTP

    KDE Connect is awesome, we all know that. But sometimes you still want (or need) to acces the files on your Android phone via a good old USB cable. And to do so, you need a working implementation of the MTP protocol.

    Many people on bugzilla complain that the MTP support in Plasma is just broken. And indeed the MTP implementation we have has always been ignoring a fundamental limitation of MTP: the protocol doesn’t allow parallel operations, unlike the old Android USB mass storage did. In practice, if more than one process spawns an mtp ioslave, everything breaks.

  • Museum Day, or, the Benefit of Skiving Off

    Tomorrow, there’s the fund raiser training session. Given that we’ve been raising funds for Krita since time immemorial (our first fund raiser was for two Wacom tablets and art pens so we could implement support for them, the second to let Lukas Tvrdy work on Krita for a couple of months and after that, we’ve had the kickstarters), that might seem superfluous. But I’m still hoping to learn lots. After all, it’s not like we’re exactly awash in money.

Android Leftovers

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Android

Red Hat and Flock

Filed under
Red Hat

OSS Leftovers

Filed under
OSS
  • 8 hurdles IT must overcome if they want open source success

    Open source software has the potential to drive innovation and collaboration across an enterprise, and can transform the way developers work together.

    "Open source is now part of the evaluation criteria when deciding on a software platform, so much so that it is expected," said Matt Ingenthron, senior director of engineering at Couchbase. "In this way, open source has somewhat faded into the background in a positive way. Just like no consumer would inquire if a mobile phone had internet access or text messaging, choosing an open source solution is almost always an option."

  • Sprint calls on open source analytics to prevent cyberfraud

    Mobile phone-related fraud is big business. Fraudsters, hackers, and other bad actors employ creative techniques to compromise networks, hijack user information, and piece together customer identities that are then sold for big bucks on the dark web. To protect its customers, Sprint needed to transform the way it detected and blocked fraudulent activity.

    “In the mobile phone business, there’s no markup on selling devices — our bread and butter is the network and the services that are delivered on that network, through the devices,” says Scott Rice, CIO of Sprint. “Identity theft is a huge problem and the ability for nefarious actors to use that theft of information to impersonate our customers means we were eating the costs of the devices and the costs of services delivery.”

  • Open Source Platform Delivers LDAP Integration

    The latest release of InfluxData, an open source platform for metrics, events, and other time series data, adds LDAP integration, new advanced analytics, and self-healing capabilities in the time series database platform. According to the company, time series data, collected and stored with InfluxData’s Time Series database platform is integral to observability and is becoming mission critical for organizations. Enhancements to InfluxEnterprise make it easier for administrators to keep this mission critical data available and secure by checking and verifying every requested action. This includes creating databases, storing data and running queries – against a user’s stored authorizations and role.

  • YOYOW-WeCenter Special Edition Release: Free and Open Source

    The YOYOW-WeCenter Special Edition, customized and developed by YOYOW and based on WeCenter Q&A community framework, has been released on GitHub. Compared to regular WeCenter frameworks, YOYOW is providing free open source services and will be continually iterating products and will be introducing an incentive mechanism. Each Q&A community can directly integrate into YOYOW's bottom layer network and enjoy the network services provided by YOYOW.

  • Add-on Recommended By Mozilla Caught Logging Users’ Browsing History

    According to the reports by Mike Kuketz, an independent security blogger from Germany and uBlock Origin, an add-on named “Web Security” has been caught collecting users’ browsing history.

    [...]

    Soon after this discovery by Hill, Kuketz added a post on his blog about the same extension pointing to the same strange behavior of the add-on. A user on Kuketz’s blog decoded the garbled data and found that the add-on was collecting users’ browsing history and sending it to a German server.

  • Zombies: Top 5 Open Source Vulnerabilities That Refuse To Die [Ed: Microsoft partner WhiteSource continues to stigmatise FOSS as a security nightmare, using bugs branded by other Microsoft partner for extra panic]
  • How a civic hacker used open data to halve tickets at Chicago's most confusing parking spot

    Matt Chapman used the Freedom of Information Act to get the City of Chicago's very mess parking ticket data; after enormous and heroic data normalization, Chapman was able to pinpoint one of the city's most confusing parking spots, between 1100-1166 N State St, which cycled between duty as a taxi-stand and a parking spot with a confusingly placed and semi-busted parking meter.

    After surveying the site and deducing the problem, Chapman contacted the alderman responsible for that stretch of North State Street, and, eight months later, the signage was cleaned up and made more intuitive.

    Followup data analysis showed that Chapman's work had halved the number of parking tickets issued on the spot, with 600-odd fewer tickets in the past 20 months, for a savings of $60,000 to Chicago motorists.

  • Bluespec, Inc. Releases a New Family of Open-Source RISC-V Processors

    Bluespec Inc. has released Piccolo, its first in a family of RISC-V open-source processors provided as a vehicle for open innovation in embedded systems.

    Piccolo is a 3-stage RV32IM processor whose small “footprint” is ideal for many IoT applications. The repository (https://github.com/bluespec/Piccolo) contains a royalty-free synthesizable Verilog core that can be easily integrated and deployed into an ASIC or FPGA. Bluespec, Inc. will actively maintain Piccolo. It also offers commercial-grade tools for the customization and verification of RISC-V cores. Configurations will be continually added to provide the full spectrum of embedded controller features. Companies or universities interested in contributing to the Piccolo project should contact Bluespec, Inc. (add contact – RISC-V open source support).

KDE Applications 18.08 Open-Source Software Suite Released, Here's What's New

Filed under
KDE
OSS

Being in development for the past several months, KDE Applications 18.08 goes stable today and will hit the software repositories of various popular GNU/Linux distributions during the next few days. This is a major release and brings numerous new features and improvements across multiple apps, including Dolphin, Konsole, Gwenview, KMail, Akonadi, Cantor, Spectacle, and others.

"We continuously work on improving the software included in our KDE Application series, and we hope you will find all the new enhancements and bug fixes useful," reads today's announcement. "More than 120 bugs have been resolved in applications including the Kontact Suite, Ark, Cantor, Dolphin, Gwenview, Kate, Konsole, Okular, Spectacle, Umbrello and more!"

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More in Tux Machines

today's howtos

Canonical/Ubuntu: Quirky Xerus 8.6, Snapcraft and More

  • Quirky Xerus 8.6 features latest DEBs from Ubuntu 16.04.x
    The independent Linux-based operating system, Quirky 8.6, a side project of Puppy Linux made with Woof, has just hit the market. According to an announcement by its creator, Barry Kauler, who retired from the Puppy Linux project to work on the Quirky Distro, the woofQ operating system is live for users to download and enjoy. The latest release mainly features bug fixes and minor improvements from previous Quirky OS 8.x versions. The release notes of Quirky’s Xerus version 8.6 explain that the update comes with a package upgrade to version 2.49.4 SeaMonkey and Kernel 4.14.63 with aufs patch. The new release is built with the latest DEBs from the Ubuntu 16.04.x range and features improvements for its EasyShare with specific improvements for Android connections. A Gxlat language translator has been introduced in this update and there are 10 architectural improvements and fixes as well. Several minor security bugs have also been patched since its predecessor.
  • Snapcraft at Europython 2018
    In July, several members of our advocacy and design teams went to Europython 2018 in Edinburgh. It was a really well-organised event, mixing great speakers from a vibrant community at a great location. The main reason for us to get closer to the Python developer community was to promote Snapcraft as the best way to publish on Linux, for app developers in general, and for Python developers in particular. As well as increasing awareness of Snapcraft, we gained a deeper understanding of the needs of Python developers and made contact with interesting products and engineers.
  • Cloud Native, Docker, K8s Summit
  • Ubuntu 18.04.1 Bionic Beaver Has Been Released (Download Links)

Graphics: Wayland/Weston, Mesa and AMD

  • Wayland 1.16 / Weston 5.0 RC2 Released To Fix Vulnerabilities
    Two release candidates of Wayland 1.16 / Weston 5.0 were not originally scheduled, but it's been necessitated due to some pressing issues both with Wayland and its reference compositor. Samsung's Derek Foreman issued these "RC2" releases on Friday rather than going straight to the official Wayland 1.16 and Weston 5.0 releases. On the Wayland front, Michael Srb found and fixed issues that could cause pointer overflows within Wayland's connection code. These overflow fixes are the only changes in this Wayland 1.15.94 (RC2) version.
  • RAGE & Doom Get Radeon Workarounds In Mesa 18.3-dev
    If you are looking to enjoy id Software's RAGE or Doom VFR games this weekend on Linux via Wine, they should be playing nicer with the latest open-source Mesa graphics driver code. Timothy Arceri at Valve has added a workaround to get RAGE working under Wine with RadeonSI. The workaround is a DRIRC configuration addition for allowing GLSL built-in variable redeclarations. This is enough to get RAGE working with RadeonSI on Mesa Git. Though only RadeonSI is working out currently since the game relies upon the OpenGL compatibility profile mode that is only supported currently by RadeonSI when it comes to the Mesa drivers. Thanks to Valve's developers and others, the OpenGL compatibility profile mode for RadeonSI has matured into great shape these past few months.
  • Adreno 600 Series Support Lands In Mesa 18.3 Gallium3D
    With the Adreno 600 series support going into Linux 4.19 for the kernel bits, the user-space OpenGL driver support for the latest-generation Qualcomm graphics has now been merged into Mesa. Kristian Høgsberg Kristensen of Google's Chrome OS graphics team (yes, Kristian of Wayland and DRI2 fame) has been working on the Gallium3D support for the Adreno 600 series hardware along with Freedreno founder Rob Clark. This A6xx support is being tacked onto the existing Freedreno Gallium3D driver and amounts to just over six thousand lines of new code. Keep in mind this A6xx Freedreno back-end must also be used with the supported MSM DRM driver in the Linux 4.19+ kernel.
  • AMDGPU-PRO 18.30 Radeon Linux Driver Released with Support for Ubuntu 18.04 LTS
    Featuring official support for the AMD Radeon PRO WX 8200 graphics cards and initial Wattman-like functionality, the Radeon Software for Linux 18.30 finally adds support for some of the most recent Ubuntu, Red Hat Enterprise Linux, and CentOS Linux distributions. These include Ubuntu 18.04.1 LTS (Bionic Beaver), Ubuntu 16.04.5 LTS (Xenial Xerus), Red Hat Enterprise Linux 7.5, Red Hat Enterprise Linux 6.10, CentOS 7.5, and CentOS 6.10. SUSE Linux Enterprise Desktop and Server (SLED/SLES) 12 Service Pack (SP) 3 is supported as well, but not the latest SUSE Linux Enterprise 15.
  • AMDVLK Vulkan Driver Update Fixes Witcher 3 Issue, Bug Fixes
    In addition to AMD releasing AMDGPU-PRO 18.30 on Friday, they also did their usual weekly source push of their newest "AMDVLK" open-source Radeon Vulkan driver code.

Kernel: Linux 4.19 Staging and Greg Kroah-Hartman's Very Many Stable Releases

  • Linux 4.19 Staging Brings EROFS File-System & Gasket Driver Framework
    Following the USB subsystem updates, Greg Kroah-Hartman sent in the kernel's staging area work for the Linux 4.19 merge window. This experimental/testing area of the Linux kernel is adding a new file-system with 4.19: EROFS. EROFS is developed by Huawei for possible Android device use-cases. EROFS stands for the Extendable Read-Only File-System and is developed to address shortcomings in other Linux read-only file-systems. EROFS features compression support and other features, but the on-disk layout format isn't 100% firm yet -- hence going into the staging area.
  • USB Patches Posted For Linux 4.19 Kernel, Including The New USB-C DisplayPort Driver
    Having wrapped up his latest stable kernel wrangling and the fallout from L1TF/Foreshadow, Greg Kroah-Hartman got around today to sending out the feature pull requests for the kernel subsystems he oversees. His first new batch of changes for Linux 4.19 today is the USB subsystem work.
  • One Week Past Linux 4.18.0, The Linux 4.18.3 Kernel Is Already Out
    Greg Kroah-Hartman had a fun Friday night issuing new point releases to the Linux 3.18 / 4.4 / 4.9 / 4.14 / 4.17 / 4.18 kernels only to have to issue new point releases minutes later. It was just on Thursday that Linux 4.18.1 was released along with updates to older stable branches for bringing L1TF / Foreshadow mitigation. Friday night then brought Linux 4.18.2, Linux 4.17.16, Linux 4.14.64, Linux 4.9.121, Linux 4.4.149, and Linux 3.18.119 with more patches. Those kernels brought various fixes, including in the x86 PTI code for clearing the global bit more aggressively, crypto fixes, and other maintenance work.