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lwn-net
feeds.twtxt.net
 (1y ago)

An Asahi Linux 6.15 progress report
The Asahi Linux
project, which supports Linux on Apple Silicon Macs, has published a
progress report ahead of the 6.15 kernel’s release.

We are pleased to announce that our graphics driver userspace API
(uAPI) has been merged into the Linux kernel. This major milestone
allows us to finally enable OpenGL, OpenCL and Vulkan support for
Apple Silicon in upstream Mesa. This is the only time a graphics
driver’s uAPI has been merged into the kernel independent … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] A new DMA-mapping API
Leon Romanovsky began his session at the 2025 Linux Storage, Filesystem,
Memory Management, and BPF Summit (LSFMM+BPF) by explaining that the improved DMA-mapping API that he has been
working on is a group effort. He, Chaitanya Kulkarni, Christoph Hellwig,
Jason Gunthorpe, and others are proposing to modernize the API and to
“make it more suitable for current kernels”. He told the assembled
storage and filesystem developers that the progress on the proposal has
stalled, but that it was the basis for further … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Oniux: kernel-level Tor isolation for Linux applications
The Tor project has announced
the oniux utility which provides Tor network isolation, using Linux
namespaces, for third-party applications.

Namespaces are a powerful feature that gives us the ability to
isolate Tor network access of an arbitrary application. We put each
application in a network namespace that doesn’t provide access … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] The future of Flatpak
At the Linux Application\
Summit (LAS) in April, Sebastian Wick said that, by many metrics, Flatpak is doing great. The Flatpak
application-packaging format is popular with upstream developers, and
with many users. More and more applications are being published in the
Flathub application store, and the
format is even being adopted by Linux distributions like
Fedora. However, he worried that work on the Flatpak project itself
had s … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Wednesday
Security updates have been issued by AlmaLinux (emacs, firefox, gnutls, java-17-openjdk, java-21-openjdk, osbuild-composer, python39:3.9, and thunderbird), Arch Linux (screen), Debian (varnish), Fedora (chromium), Gentoo (Atop, FreeType, and Spidermonkey), Mageia (java-1.8.0-openjdk, java-11-openjdk, java-17-openjdk, java-latest-openjdk and postgresql15, postgresql13), Oracle (389-ds-base, emacs, firefox, kernel, libsoup, libtiff, mod_auth_openidc:2.3, nodejs:20, nodejs:22, … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] A look at what’s possible with BPF arenas
BPF arenas are areas of memory where the verifier can safely relax its checking of
pointers, allowing programmers to write arbitrary data structures in BPF. Emil
Tsalapatis reported on how his team has used arenas in writing
sched_ext schedulers at the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit. His biggest complaint was about the fact that
kernel pointers can’t be stored in BPF arenas — someth … ⌘ Read more

⤋ Read More
cncf
feeds.twtxt.net
 (1y ago)

How to install and run Minikube with Rootless Podman on ARM-based MacBooks
minikube provides a local Kubernetes cluster on macOS, Linux, and Windows. minikube’s primary goals are to be the best tool for local Kubernetes application development and to support all Kubernetes features that fit into that environment…. ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Tuesday
Security updates have been issued by Debian (libeconf and rubygems), Fedora (libxmp), Gentoo (glibc), Oracle (java-1.8.0-openjdk, kernel, libxslt, and virtuoso-opensource), SUSE (augeas, git-lfs, kanidm, and tomcat10), and Ubuntu (linux-lts-xenial). ⌘ Read more

⤋ Read More
mc
feeds.twtxt.net
 (1y ago)

VPS troubles and the weekend
This weekend I went to the cottage with P on Friday. I hoped I would
have a nice weekend reading in front of the wood stove, but I had also
planned to spend at least a few hours trying to configure Maddy as the
new mail server for hack.org et al.

Then the web server I moved to the new VPS died. Again. I connected to
the VNC console and, like before, the Linux kernel couldn’t find its
root disk. A simple:

# mount /dev/vda2 /sysroot; exit

in the emergency shell solved thi … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] A FUSE implementation for famfs
The famfs
filesystem is meant to provide a shared-memory filesystem for large data
sets that are accessed for computations by multiple systems. It was
developed by John Groves, who led a combined filesystem and
memory-management session at
the 2025 Linux Storage, Filesystem, Memory
Management, and BPF Summit (LSFMM+BPF) to discuss it. The session was a
follow-up to [the famfs session at last year’s\
summit](https://lwn.net/Articles … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] Hash table memory usage and a BPF interpreter bug
Anton Protopopov led a short discussion at the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit about amount of memory used
by hash tables in BPF programs. He thinks that the current memory layout is
inefficient, and wants to split the structure that holds table entries into two
variants for different kinds of maps. When that proposal proved
uncontroversial, he also took the chance to talk about a bug in BPF’s call
instruction. ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Wednesday
Security updates have been issued by Fedora (incus and nodejs20), Red Hat (freetype, kernel, kernel-rt, libsoup, libtiff, redis, redis:6, and thunderbird), SUSE (apparmor, chromium, grafana, ImageMagick, java-11-openjdk, java-17-openjdk, libsoup, libsoup2, libxslt, opensaml, rabbitmq-server, rubygem-rack-1_6, sqlite3, and thunderbird), and Ubuntu (kernel, libfcgi, libraw, libsoup2.4, linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ib … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Filtering fanotify events with BPF
Linux systems can have large filesystems; trying to keep up with the
stream of
fanotify filesystem-monitoring notifications for them can be a struggle.
Fanotify is one of a few ways to monitor accesses to filesystems provided by the kernel.
Song Liu led a discussion
on how to improve in-kernel filtering of fanotify events to a joint
session of the filesystem and BPF tracks at the 2025 Linux Storage, Filesystem,
Memo … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] Improving FUSE writeback performance
In a combined filesystem and memory-management session at
the 2025 Linux Storage, Filesystem, Memory
Management, and BPF Summit (LSFMM+BPF), Joanne Koong led a discussion on
improving the writeback performance for the Filesystem in\
Userspace (FUSE) layer. Writeback is how data that is written to the
filesystem is actually flushed to the disk; it is the process of writing
dirty pages from the page cache to storage. The current FUSE
imple … ⌘ Read more

⤋ Read More
movq
www.uninformativ.de
 (1y ago)
↳ In-reply-to » Nobody want to be a shitty programmer. The question is: Do you do anything not to not be one? Reading blogs or social media and watching YouTube videos is fun. After them, your code may be a little better, of course. But you need a lot. You need to study! Read good books and study the code of other programmers, for example. Maybe work with a new language, architectures and paradigms. You need break the routine.

@andros@twtxt.andros.dev

You need break the routine.

I haven’t really done that lately. 🤔 Maybe have another go at Rust (given its increasing importance in the Linux kernel)? Or Elixir, yes, I only had some very, very brief contact with it. 🤔

I just came across an old forum posting of mine about Prolog. That brought up some memories. Prolog is pretty alien, but I do miss stuff like that because it’s so different.

Just thinking out loud here. 😅

⤋ Read More
doesnm
doesnm.p.psf.lt
 (1y ago)
↳ In-reply-to » Confession:

@movq@www.uninformativ.de @kat@yarn.girlonthemoon.xyz @quark@ferengi.one In 2014 one person created protocol ii. Later it forked in IDEC. Why i said this? Because it’s simple “federated” forum-like protocol where from your station fetch another every 5-10 minutes. Stations has topic-based channels like idec.talks, linux.16, haiku.os, zx.spectrum. In short it’s FIDO but.. more modern? Documentation: https://github.com/idec-net/new-docs (mostly Russian, but you can use translator, also protocol already translated to english)

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Flexible data placement
At
the 2025 Linux Storage, Filesystem, Memory
Management, and BPF Summit (LSFMM+BPF) Kanchan Joshi and Keith Busch led a
combined storage and filesystem session on data placement, which concerns
how the data on a storage device is actually written. In a discussion
that hearkened back to previous summits, the idea is to give hints to enterprise-class
SSDs to help them make better choices on where the data should go; hinting
was most recently [discussed at the summit in 2023](https://lwn.net/Articles/932900/ … ⌘ Read more

⤋ Read More
movq
www.uninformativ.de
 (1y ago)

Confession:

I’ve never found microblogging like twtxt or the Fediverse or any other “modern” social media to be truly fulfilling/satisfying.

The reason is that it is focused so much on people. You follow this or that person, everybody spends time making a nice profile page, the posts are all very “ego-centric”. Seriously, it feels like everybody is on an ego-trip all the time (this is much worse on the Fediverse, not so much here on twtxt).

I miss the days of topic-based forums/groups. A Linux forum here, a forum about programming there, another one about a certain game. Stuff like that. That was really great – and it didn’t even suffer from the need to federate.

Sadly, most of these forums are dead now. Especially the nerds spend a lot of time on the Fediverse now and have abandoned forums almost completely.

On Mastodon, you can follow hashtags, which somewhat emulates a topic-based experience. But it’s not that great and the protocol isn’t meant to be used that way (just read the snac2 docs on this issue). And the concept of “likes” has eliminated lots of the actual user interaction. ☹️

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Friday
Security updates have been issued by Debian (chromium, nodejs, openjdk-17, and thunderbird), Fedora (firefox, golang-github-nvidia-container-toolkit, and thunderbird), Mageia (kernel), Oracle (ghostscript, glibc, kernel, libxslt, php:8.1, and thunderbird), SUSE (cmctl, firefox-esr, govulncheck-vulndb, java-21-openjdk, libxml2, poppler, python-h11, and redis), and Ubuntu (docker.io, ghostscript, linux-xilinx-zynqmp, and micropython). ⌘ Read more

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lobste_rs
feeds.twtxt.net
 (1y ago)

PewDiePie | I installed linux
All I can say is.. what? I’m not even sure why this popped up in my youtube frontpage. I don’t generally watch PewDiePie, but in all honesty, it’s a pretty glowing review of Linux, Arch, Hyprland and more. He points out some warts and things here and there around compatibility, but all in all, “PewDiePie takes aim at Microsoft” was not on my 2025 Bingo card…

Comments ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Custom out-of-memory killers in BPF
The out-of-memory (OOM) killer has long been a scary and controversial part
of the Linux kernel. It is summoned from some dark place when the system
as a whole (or, more recently, any given control group) is running so low
on memory that further allocations are not possible; its job is to kill off
processes until a sufficient amount of memory has been freed. Roman
Gushchin has found a way to make the OOM killer even scarier: adding the
ability to [load\
custom OOM killers in BPF](https://lwn.ne … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] LWN.net Weekly Edition for May 1, 2025
Inside this week’s LWN.net Weekly Edition:

  • Front: Mailman 2 vulnerabilities; AI in Debian; __nonstring__; Cache-aware scheduling; Freezing filesystems; Socket-level storage; Debugging information; LWN in 2025.

  • Briefs: Debian election; Kali Linux key; OpenBSD 7.7; Firefox 138.0; GCC 15.1; Meson 1.8.0; Valgrind 3.25.0; FSF review; OSI retrospective; Mastodon; Quotes; …

  • [Announcements](https://lwn.net/Arti … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Better debugging information for inlined kernel functions
Modern compilers perform a lot of optimizations, which can complicate debugging.
Song Liu and Thierry Treyer spoke about a potential improvement to
BPF Type Format (BTF) debugging information that could partially combat that
problem at the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit.
They want to add information on selectively inlined functions to BTF in order to
better support tracing tools.
Trey … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Signing key change for Kali Linux
The Kali Linux distribution has announced
that software updates will soon start failing for all users:

This is not only you, this is for everyone, and this is entirely
our fault. We lost access to the signing key of the repository, so
we had to create a new one. At the same time, we froze the
repository (you might have noticed that there was no update since
Friday 18th), so nobody was impacted yet. But we’re going to
unfreez … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Tuesday
Security updates have been issued by AlmaLinux (glibc, php:8.1, and thunderbird), Debian (libreoffice), Fedora (caddy), Mageia (chromium-browser-stable), Red Hat (php:8.1), SUSE (glow), and Ubuntu (kicad, linux-aws-5.15, linux-azure-nvidia, linux-gcp-5.15, mistral, python-mistral-lib, tomcat8, and trafficserver). ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] Inline socket-local storage for BPF
Martin Lau gave a talk in the BPF track of the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit about a performance problem
plaguing the networking subsystem, and some potential ways to fix it. He works on
BPF programs that need to store socket-local data; amid other improvements to
the networking and BPF subsystems, retrieving that data has become a noticeable
bottleneck for his use case. His proposed fix prompted a good deal of discussion
about how the data should be laid out … ⌘ Read more

⤋ Read More
yue-fang-readfog-go
feeds.twtxt.net
 (1y ago)

Golang 日誌實時告警實現方案（Windows-Linux-Debian）
在 Golang 中實現跨平臺的日誌實時告警，可以通過以下幾種方式實現：通用實現方案1. 使用日誌監控庫package mainimport(“log”“os”“time”“github.com/hpcloud/tail”// 跨平臺文件跟蹤”github.com/robfig/cron”// 定時任務)funcsetupLogMonitor(logPath string){ t, err := ⌘ Read more

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yue-fang-readfog
feeds.twtxt.net
 (1y ago)

Golang 日誌實時告警實現方案（Windows-Linux-Debian）
在 Golang 中實現跨平臺的日誌實時告警，可以通過以下幾種方式實現：通用實現方案1. 使用日誌監控庫package mainimport(“log”“os”“time”“github.com/hpcloud/tail”// 跨平臺文件跟蹤”github.com/robfig/cron”// 定時任務)funcsetupLogMonitor(logPath string){ t, err := ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Friday
Security updates have been issued by AlmaLinux (thunderbird), Debian (libbpf), Fedora (golang-github-openprinting-ipp-usb, ImageMagick, mingw-libsoup, mingw-poppler, and pgbouncer), SUSE (glib2, govulncheck-vulndb, libsoup-2_4-1, libxml2-2, mozjs60, ruby2.5, and thunderbird), and Ubuntu (linux, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4, linux-aws, linux-aws-5.4, linux-gcp-5.4, linux-iot, linux-aws-fips, … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Freezing filesystems for suspend
Sometimes worms have a tendency to multiply once their can is opened.
James Bottomley recently encountered that situation; he led a session in
the filesystem track at the 2025 Linux Storage, Filesystem, Memory
Management, and BPF Summit (LSFMM+BPF) to discuss filesystem behavior with
respect to suspending and resuming the system. As he noted in his topic\
proposal, he came at the problem because he need … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Thursday
Security updates have been issued by Debian (haproxy and openrazer), Fedora (c-ares and mingw-poppler), Red Hat (thunderbird), SUSE (epiphany, ffmpeg-6, gopass, and libsoup-3_0-0), and Ubuntu (erlang, haproxy, libapache2-mod-auth-openidc, libarchive, linux, linux-aws, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] VFS write barriers
In the filesystem track at the 2025 Linux Storage, Filesystem, Memory
Management, and BPF Summit (LSFMM+BPF), Amir Goldstein wanted to resume
discussing
a feature that he had briefly introduced at the end of a 2023 summit session: filesystem “write
barriers”. The idea is to have an operation that would wait for any
in-flight write()
system calls, but not block any new write() calls as bigger
hammers, such as freezi … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Wednesday
Security updates have been issued by AlmaLinux (bluez, expat, and postgresql:12), Fedora (chromium, golang, LibRaw, moodle, openiked, ruby, and trafficserver), Red Hat (bluez, expat, gnutls, libtasn1, libxslt, mod_auth_openidc, mod_auth_openidc:2.3, ruby:3.1, thunderbird, and xmlrpc-c), and Ubuntu (linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime, linux-azure, linux-azure-6.11, linux-gc … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] Code signing for BPF programs
The Linux kernel can be configured so that
kernel modules must be signed or
otherwise authenticated to be loaded
into the kernel. Some BPF developers want that to be an option for BPF programs
as well — after all, if those are going to run as part of the kernel,
they should be subject to the same code-signing requirements. Blaise Boscaccy
and Cong Wang presented two different visions for how BPF code signing could
work at the 2025 Linux Storage, Filesystem, Memory … ⌘ Read more

⤋ Read More
lwn-net
feeds.twtxt.net
 (1y ago)

[$] Indirect calls in BPF
Anton Protopopov kicked off the BPF track on
the second day of the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit with a discussion about permitting
indirect calls in BPF. He also spoke about his continuing work on
static keys, a topic which is related because the implementation of indirect
jumps and static keys in the verifier use some of the same mechanisms for
tracking indirect control-flow.
Although some design work remains to be done, it may soon be … ⌘ Read more

⤋ Read More
os-x-daily
feeds.twtxt.net
 (1y ago)

How to Customize Your Mac Mouse Cursor with Mousescape
Have you ever wanted to customize the cursor in MacOS? Perhaps you want to use a Windows-style white cursor on your Mac, or a grey 3d looking Linux style cursor, or even cursors from the Wii interface on your Mac? You can do all of that and more with a free app called Mousescape for … Read More ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Owen Le Blanc: creator of the first Linux distribution
Ask a Linux enthusiast who created the Linux kernel, and odds are they will have
no trouble naming Linus Torvalds—but many would be stumped if asked what the
first Linux distribution was, and who created it. Some might guess Slackware, or its predecessor, Softlanding Linux\
System (SLS); both were arguably more influential but arrived just a bit
later. The first honest-to-goodness distribut … ⌘ Read more

⤋ Read More
movq
www.uninformativ.de
 (1y ago)
↳ In-reply-to » @movq i tried ngircd but couldn't figure it out T__T i left it at the web client and bouncer for now but i might toy with an IRC server another time!

@kat@yarn.girlonthemoon.xyz At the core, you need an ngircd.conf like this:

[Global]
    Name = your.irc.server.com
    Password = yourfancypassword
    Listen = 0.0.0.0
    Ports = 6667

    AdminInfo1 = Well, me.
    AdminInfo2 = Over here!
    AdminEMail = forget.it@example.invalid

[Options]
    Ident = no
    PAM = no

[SSL]
    CertFile = /etc/ssl/acme/your.irc.server.com.fullchain.pem
    KeyFile = /etc/ssl/acme/private/your.irc.server.com.key
    DHFile = /etc/ngircd/dhparam.pem
    Ports = 6669

Start it and then you can connect on port 6667. (The SSL cert/key must be managed by an external tool, probably something like certbot or acme-client.)

I’m assuming OpenBSD here. Haven’t tried it on Linux lately, let alone Docker. 😅

⤋ Read More