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LWN.net is a comprehensive source of news and opinions from and about the Linux community. This is the main LWN.net feed, listing all articles which are posted to the site front page.
Updated: 2 hours 13 min ago

Security updates for Wednesday

Wednesday 25th of March 2020 02:47:35 PM
Security updates have been issued by Debian (e2fsprogs, ruby2.1, and weechat), Fedora (java-1.8.0-openjdk and webkit2gtk3), openSUSE (apache2-mod_auth_openidc, glibc, mcpp, nghttp2, and skopeo), Oracle (libvncserver and thunderbird), and SUSE (keepalived).

Speeding up Linux disk encryption (Cloudflare)

Wednesday 25th of March 2020 02:29:55 PM
The Cloudflare blog has an article on the company's work to improve the performance of Linux disk encryption. "As we can see the default Linux disk encryption implementation has a significant impact on our cache latency in worst case scenarios, whereas the patched implementation is indistinguishable from not using encryption at all. In other words the improved encryption implementation does not have any impact at all on our cache response speed, so we basically get it for free!" Patches are available, but they are apparently not in any form to go upstream.

LLVM 10.0.0 released

Tuesday 24th of March 2020 08:43:26 PM
Version 10.0.0 of the LLVM compiler suite is out. New features include support for C++ concepts, Windows control flow guard support, and much more; click below for pointers to a set of language-specific release notes.

PSF: New pip resolver to roll out this year

Tuesday 24th of March 2020 05:23:18 PM
The Python Software Foundation blog looks at some changes to pip, the Python Package installer, in the process of developing a new resolver. The new resolver will reduce inconsistency and be stricter, refusing to install two packages with incompatible requirements.

Also, this is a major change to a key part of pip - it's quite possible there will initially be bugs. We would like to make sure that those get caught before people start using the new version in production. [...]

We recognize that everyone's work is being disrupted by the COVID-19 pandemic, and that many data scientists and medical researchers use Python and pip in their work. We want to make the upgrade process as smooth and bug-free as possible for our users; if you can help us, you'll be helping each other.

Security updates for Tuesday

Tuesday 24th of March 2020 02:51:05 PM
Security updates have been issued by Debian (tomcat8), Fedora (chromium and okular), openSUSE (texlive-filesystem), Oracle (tomcat6), Scientific Linux (libvncserver, thunderbird, and tomcat6), Slackware (gd), SUSE (cloud-init, postgresql10, python36, and strongswan), and Ubuntu (ibus and vim).

[$] Video conferencing with Jitsi

Tuesday 24th of March 2020 01:12:03 AM
Spring is coming to the northern hemisphere, and one's thoughts naturally turn to ... being locked up inside the house and not allowed to go anywhere. That has, in turn, led to an increasing interest in alternative mechanisms for keeping up with family and coworkers, especially video conferencing. There are a number of proprietary video-conferencing services out there; your editor decided to look into what solutions exist in the free-software realm. It turns out that there are a few; the first to be looked at is Jitsi.

Announcing Season of Docs 2020

Monday 23rd of March 2020 07:20:13 PM
Google Open Source has announced the 2020 edition of Season of Docs, a program to connect open source projects with technical writers to improve documentation. Open source organizations may apply from April 14-May 4. Once mentoring organizations and technical writers are connected, there will be a month long community bonding period, beginning August 11. Writers will then work with mentors to complete documentation projects by the December 6 deadline.

MythTV 31

Monday 23rd of March 2020 06:46:23 PM
For those stuck at home looking for something to do, version 31 of the MythTV DVR and home media center hub, has been released. Features include, significant changes to video decoding and playback, improved channel scanning, and Python 3 support. See the release notes for more information.

Parrot OS 4.8 released

Monday 23rd of March 2020 03:38:20 PM
Parrot OS is a security and privacy focused distribution, with tools for cyber security operations. Parrot 4.8 follows Debian testing and has many updates from the Debian repositories. Parrot Docker containers allow you to use Parrot tools on docker-supported operating systems. Since the previous release last September the Parrot team has put some effort into reorganizing its internal structure, from the operations and workflow of developers, up to the infrastructure. "After such a huge work, we have finally moved to the new workflow, and Parrot 4.8 is the proof of how hard we wanted such changes to take place in the project and how smooth development and cooperation became after achieving this goal."

Security updates for Monday

Monday 23rd of March 2020 02:43:49 PM
Security updates have been issued by Debian (amd64-microcode, chromium, graphicsmagick, jackson-databind, phpmyadmin, python-bleach, and tor), Gentoo (exim and nodejs), openSUSE (chromium and thunderbird), Oracle (tomcat), Red Hat (devtoolset-8-gcc, libvncserver, runc, samba, thunderbird, and tomcat6), and SUSE (ruby2.5).

Git v2.26.0 released

Monday 23rd of March 2020 01:04:39 PM
Version 2.26.0 of the Git source-code management system is out. Significant changes include a reimplementation of the "rebase" mechanism, improvements to sparse checkouts, performance improvements, and more. See this GitHub blog entry for more information.

More in Tux Machines

today's howtos

Olimex Tukhla High-End Open Source Hardware NXP i.MX 8QuadMax SBC in the Works

Most open-source hardware Arm Linux SBCs are optimized for cost, and there are few higher-end boards with extensive connectivity designed for professionals. Beagleboard X15 would be one of the rare examples currently available on the market, but it was launched five years ago. One European company noticed the void in this market and asked Olimex to develop a high-end open-source Linux board with a well-documented processor. They ruled out RK3399, and instead went Olimex Tukhla SBC will be powered by NXP i.MX 8QuadMax, the top processor of i.MX 8 family with two Cortex-A72 cores, four Cortex-A53 cores, and two real-time Cortex-M4F cores. Read more

Robotics Recap: Learning, Programming & Snapping ROS 2

Robotics@Canonical puts a strong focus on the migration from ROS to ROS 2. ROS 2 benefits from many improvements, especially robot security. Our goal is to make it easy for you to transition to ROS 2, whether you’re completely new to ROS or a seasoned engineer retooling for a new environment. Your new platform should be secure-by-default, and we expect you’ll need to pivot between different environments as you migrate from ROS to ROS 2. Along the way we’ve encountered some friction points, some mild surprises, and some opportunities to better leverage existing tools. Whenever that happened we tried to fix them and share our experiences so you didn’t run into the same problems! This has resulted in blog posts and videos in three key focus areas: getting started with ROS 2, software development in ROS 2, and building snaps for ROS. Let’s recap some of our recent output. Read more

Linux 5.8-rc5

Ok, so rc4 was small, and now a week later, rc5 is large.

It's not _enormous_, but of all the 5.x kernels so far, this is the
rc5 with the most commits. So it's certainly not optimal. It was
actually very quiet the beginning of the week, but things picked up on
Friday. Like they do..

That said, a lot of it is because of the networking fixes that weren't
in rc4, and I'm still not hearing any real panicky sounds from people,
and things on the whole seem to be progressing just fine.

So a large rc5 to go with a large release doesn't sound all that
worrisome, when we had an unusually small rc4 that precedes it and
explains it.

Maybe I'm in denial, but I still think we might hit the usual release
schedule. A few more weeks to go before I need to make that decision,
so it won't be keeping me up at night.

The diffstat for rc5 doesn't look particularly worrisome either. Yes,
there's a (relatively) high number of commits, but they tend to be
small. Nothing makes me go "umm".

In addition to the outright fixes, there's a few cleanups that are
just prep for 5.9. They all look good and simple too.

Anyway, networking (counting both core and drivers) amounts to about a
third of the patch, with the rest being spread all over: arch updates
(arm64, s390, arc), drivers (gpu, sound, md, pin control, gpio),
tooling (perf and selftests). And misc noise all over.

The appended shortlog gives the details, nothing really looks all that
exciting. Which is just as it should be at this time.

Go forth and test.

Thanks,

                 Linus
Read more Also: Linux 5.8-rc5 Released As A Big Kernel For This Late In The Cycle