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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.
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Security updates for Friday

p, 2017-09-22 16:24
Security updates have been issued by CentOS (augeas, samba, and samba4), Debian (apache2, bluez, emacs23, and newsbeuter), Fedora (kernel and mingw-LibRaw), openSUSE (apache2 and libzip), Oracle (kernel), SUSE (kernel, spice, and xen), and Ubuntu (emacs24, emacs25, and samba).
Kategóriák: Linux

[$] Notes from the LPC tracing microconference

cs, 2017-09-21 21:49
The "tracing and BPF" microconference was held on the final day of the 2017 Linux Plumbers Conference; it covered a number of topics relevant to heavy users of kernel and user-space tracing. Read on for a summary of a number of those discussions on topics like BPF introspection, stack traces, kprobes, uprobes, and the Common Trace Format.
Kategóriák: Linux

Security updates for Thursday

cs, 2017-09-21 16:35
Security updates have been issued by Arch Linux (tomcat7), Debian (kernel and perl), Fedora (libwmf and mpg123), Mageia (bluez, ffmpeg, gstreamer0.10-plugins-good, gstreamer1.0-plugins-good, libwmf, tomcat, and tor), openSUSE (emacs, fossil, freexl, php5, and xen), Red Hat (augeas, rh-mysql56-mysql, samba, and samba4), Scientific Linux (augeas, samba, and samba4), Slackware (samba), SUSE (emacs and kernel), and Ubuntu (qemu).
Kategóriák: Linux

Red Hat's new patent promise

cs, 2017-09-21 14:41
Red Hat has announced an update to its patent promise, wherein the company says it will not enforce its patents against anybody who might be infringing them with open-source software. The new version expands the promise to all software covered by an OSI-approved license, including permissive licenses. The attached FAQ notes that Red Hat now possesses over 2,000 patents.
Kategóriák: Linux

[$] LWN.net Weekly Edition for September 21, 2017

cs, 2017-09-21 01:25
The LWN.net Weekly Edition for September 21, 2017 is available.
Kategóriák: Linux

[$] Linking commits to reviews

sze, 2017-09-20 17:19

In a talk in the refereed track of the 2017 Linux Plumbers Conference, Alexandre Courouble presented the email2git tool that links kernel commits to their review discussion on the mailing lists. Email2git is a plugin for cregit, which implements token-level history for a Git repository; we covered a talk on cregit just over one year ago. Email2git combines cregit with Patchwork to link the commit to a patch and its discussion threads from any of the mailing lists that are scanned by patchwork.kernel.org. The result is a way to easily find the discussion that led to a piece of code—or even just a token—changing in the kernel source tree.

Kategóriák: Linux

GNOME Foundation partners with Purism to support its efforts to build the Librem 5 smartphone

sze, 2017-09-20 16:40
Last week KDE announced that they were working with Purism on the Librem 5 smartphone. The GNOME Foundation has also provided its endorsement and support of Purism’s efforts to build the Librem 5. "As part of the collaboration, if the campaign is successful the GNOME Foundation plans to enhance GNOME shell and general performance of the system with Purism to enable features on the Librem 5. Various GNOME technologies are used extensively in embedded devices today, and GNOME developers have experienced some of the challenges that face mobile computing specifically with the Nokia 770, N800 and N900, the One Laptop Per Child project’s XO laptop and FIC’s Neo1973 mobile phone."
Kategóriák: Linux

An intro to machine learning (Opensource.com)

sze, 2017-09-20 16:17
Ulrich Drepper, once again an engineer at Red Hat, writes about machine learning on opensource.com. "Machine learning and artificial intelligence (ML/AI) mean different things to different people, but the newest approaches have one thing in common: They are based on the idea that a program's output should be created mostly automatically from a high-dimensional and possibly huge dataset, with minimal or no intervention or guidance from a human. Open source tools are used in a variety of machine learning and artificial intelligence projects. In this article, I'll provide an overview of the state of machine learning today."

Kategóriák: Linux

Security updates for Wednesday

sze, 2017-09-20 16:13
Security updates have been issued by CentOS (emacs), Debian (apache2, gdk-pixbuf, and pyjwt), Fedora (autotrace, converseen, dmtx-utils, drawtiming, emacs, gtatool, imageinfo, ImageMagick, inkscape, jasper, k3d, kxstitch, libwpd, mingw-libzip, perl-Image-SubImageFind, pfstools, php-pecl-imagick, psiconv, q, rawtherapee, ripright, rss-glx, rubygem-rmagick, synfig, synfigstudio, techne, vdr-scraper2vdr, vips, and WindowMaker), Oracle (emacs and kernel), Red Hat (emacs and kernel), Scientific Linux (emacs), SUSE (emacs), and Ubuntu (apache2).
Kategóriák: Linux

Stable kernels 4.13.3, 4.12.14, and 4.9.51

sze, 2017-09-20 15:44
The 4.13.3, 4.12.14, and 4.9.51 stable kernels have been released; each contains another set of important fixes. Note that this is the final update for the 4.12.x series.
Kategóriák: Linux

[$] Building the kernel with clang

k, 2017-09-19 18:18

Over the years, there has been a persistent effort to build the Linux kernel using the Clang C compiler that is part of the LLVM project. We last looked in on the effort in a report from the LLVM microconference at the 2015 Linux Plumbers Conference (LPC), but we have followed it before that as well. At this year's LPC, two Google kernel engineers, Greg Hackmann and Nick Desaulniers, came to the Android microconference to update the status; at this point, it is possible to build two long-term support kernels (4.4 and 4.9) with Clang.

Kategóriák: Linux

Moore: The 2017 Linux Security Summit

k, 2017-09-19 15:46
Paul Moore has posted his notes from the 2017 Linux Security Summit, held September 14 and 15 in Los Angeles. "LinuxKit was designed to make it easy for people to create their own Linux distribution, with a strong focus on minimal OS installs such as one would use in a container hosting environment. LinuxKit has several features that make it interesting from a security perspective, the most notable being the read-only rootfs which is managed using external tooling. Applications are installed via signed container images."
Kategóriák: Linux

Security updates for Tuesday

k, 2017-09-19 15:41
Security updates have been issued by Arch Linux (apache and ettercap), Debian (gdk-pixbuf and newsbeuter), Red Hat (kernel), Slackware (httpd, libgcrypt, and ruby), SUSE (kernel), and Ubuntu (bind9, kernel, libidn2-0, libxml2, linux, linux-aws, linux-gke, linux-kvm, linux-raspi2, linux-snapdragon, linux, linux-raspi2, linux-hwe, linux-lts-trusty, and linux-lts-xenial).
Kategóriák: Linux

Schaller: Launching Pipewire

k, 2017-09-19 14:47
Christian Schaller announces Pipewire, a media system that is meant to eventually replace PulseAudio and handle video as well. "Anyway as work progressed Wim decided to also take a look at Jack, as supporting the pro-audio usecase was an area PulseAudio had never tried to do, yet we felt that if we could ensure Pipewire supported the pro-audio usecase in addition to consumer level audio and video it would improve our multimedia infrastructure significantly and ensure pro-audio became a first class citizen on the Linux desktop." A video-only version will be shipping in Fedora 27.
Kategóriák: Linux

[$] Testing kernels

k, 2017-09-19 02:40

New kernels are released regularly, but it is not entirely clear how much in-depth testing they are actually getting. Even the mainline kernel may not be getting enough of the right kind of testing. That was the topic for a "birds of a feather" (BoF) meeting at this year's Linux Plumbers Conference (LPC) held in mid-September in Los Angeles, CA. Dhaval Giani and Sasha Levin organized the BoF as a prelude to the Testing and Fuzzing microconference they were leading the next day.

Kategóriák: Linux

[$] Notes from the LPC scheduler microconference

k, 2017-09-19 00:11
The scheduler workloads microconference at the 2017 Linux Plumbers Conference covered several aspects of the kernel's CPU scheduler. While workloads were on the agenda, so were a rework of the realtime scheduler's push/pull mechanism, a distinctly different approach to multi-core scheduling, and the use of tracing for workload simulation and analysis. As the following summary shows, CPU scheduling has not yet reached a point where all of the important questions have been answered.
Kategóriák: Linux

EME is now a W3C recommendation

h, 2017-09-18 22:04
The World Wide Web Consortium has put out a press release trumpeting its publication of the "Encrypted Media Extensions" as an official recommendation and enshrining DRM into what was previously a standard for open communication. See the EFF's open letter for a less rosy view of this development. "Today, the W3C bequeaths an legally unauditable attack-surface to browsers used by billions of people. They give media companies the power to sue or intimidate away those who might re-purpose video for people with disabilities. They side against the archivists who are scrambling to preserve the public record of our era. The W3C process has been abused by companies that made their fortunes by upsetting the established order, and now, thanks to EME, they’ll be able to ensure no one ever subjects them to the same innovative pressures."
Kategóriák: Linux

Robinson: The state of open source accelerated graphics on ARM devices

h, 2017-09-18 20:20
Peter Robinson looks at the state of open source accelerated graphics on ARM devices. "Despite the two bad examples above there’s actually been a lot of good change in the last five years. We now have a number of options for fully accelerated 2D/3D graphics on ARM SoCs and I run GNOME Shell on Wayland, yes the full open source shiny, on a number of different devices regularly."
Kategóriák: Linux

Security updates for Monday

h, 2017-09-18 16:36
Security updates have been issued by Arch Linux (ffmpeg, lib32-libgcrypt, libgcrypt, linux-zen, and newsbeuter), Debian (emacs25, freexl, and tomcat8), Fedora (cyrus-imapd, FlightGear, freexl, gdm, kernel, LibRaw, ruby, and xen), Gentoo (binutils, chkrootkit, curl, gdk-pixbuf, gimps, git, kpathsea, mod_gnutls, perl, squirrelmail, subversion, supervisor, and webkit-gtk), Mageia (389-ds-base, kernel, kernel-linus, kernel-tmb, and mpg123), openSUSE (ffmpeg, ffmpeg2, qemu, and xen), Slackware (kernel), SUSE (xen), and Ubuntu (gdk-pixbuf).
Kategóriák: Linux

[$] The rest of the 4.14 merge window

v, 2017-09-17 23:36
As is sometimes his way, Linus Torvalds released 4.14-rc1 and closed the merge window one day earlier than some might have expected. By the time, though, 11,556 non-merge changesets had found their way into the mainline repository, so there is no shortage of material for this release. Around 3,500 of those changes were pulled after the previous 4.14 merge-window summary; read on for an overview of what was in that last set.
Kategóriák: Linux