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movq
www.uninformativ.de
 (1y ago)
↳ In-reply-to » I bought the “remastered” versions of Grim Fandango and Forsaken on GOG, because they’re super cheap at the moment. Both have native Linux versions.

In all fairness, GOG says that Forsaken is only supported on Ubuntu 16.04 – not current Arch Linux. If you ask me, this just goes to show that Linux is not a good platform for proprietary binary software.

Is it free software, do you have the source code? Then you’re good to go, things can be patched/updated (that can still be a lot of work). But proprietary binary blobs? Very bad idea.

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movq
www.uninformativ.de
 (1y ago)

I bought the “remastered” versions of Grim Fandango and Forsaken on GOG, because they’re super cheap at the moment. Both have native Linux versions.

And both these Linux version crap their pants. 🫤 The bundled SDL2 of Forsaken says it “can’t find a matching GLX visual” and I couldn’t figure out how to fix that. I didn’t spend a lot of time on Grim Fandango.

Both work great in Wine. 🤦

(I do have the original version of Grim Fandango from the 1990ies, but that one does not work so well in Wine. I figured, if it’s so cheap, why not. And I now get to play the english version. 😃 The german dub is pretty damn good, actually, but I always prefer the original these days.)

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movq
www.uninformativ.de
 (1y ago)

Speaking of Wine, Arch Linux completely fucked up Wine for me with the latest update.

  • 16-bit support is gone.
  • Performance of 3D games is horrible and unplayable.

Arch is shipping a WoW64 build now, which is not yet ready for prime time.

And then I realized that there’s actually only one stable Wine release per year but Arch has been shipping development releases all the time. That’s quite unusual. I’m used to Arch only shipping stable packages … huh.

Hopefully things will improve again. I’m not eager to build Wine from source. I’d rather ditch it and resort to my real Windows XP box for the little (retro)gaming that I do … 🫤

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movq
www.uninformativ.de
 (1y ago)

Speaking of Wine, Arch Linux completely fucked up Wine for me with the latest update.

  • 16-bit support is gone.
  • Performance of 3D games is horrible and unplayable.

Arch is shipping a WoW64 build now, which is not yet ready for prime time.

And then I realized that there’s actually only one stable Wine release per year but Arch has been shipping development releases all the time. That’s q

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

OpenBSD has the wonderful pledge() and unveil() syscalls:

https://www.youtube.com/watch?v=bXO6nelFt-E

Not only are they super useful (the program itself can drop privileges – like, it can initialize itself, read some files, whatever, and then tell the kernel that it will never do anything like that again; if it does, e.g. by being exploited through a bug, it gets killed by the kernel), but they are also extremely easy to use.

Imagine a server program with a connected socket in file descriptor 0. Before reading any data from the client, the program can do this:

unveil("/var/www/whatever", "r");
unveil(NULL, NULL);
pledge("stdio rpath", NULL);

Done. It’s now limited to reading files from that directory, communicating with the existing socket, stuff like that. But it cannot ever read any other files or exec() into something else.

I can’t wait for the day when we have something like this on Linux. There have been some attempts, but it’s not that easy. And it’s certainly not mainstream, yet.

I need to have a closer look at Linux’s Landlock soon (“soon”), but this is considerably more complicated than pledge()/unveil():

https://landlock.io/

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Improving iov_iter
The iov_iter interface is used to
describe and iterate through buffers in the kernel. David Howells led a combined storage and
filesystem session at
the 2025 Linux Storage,
Filesystem, Memory Management, and BPF Summit (LSFMM+BPF) to discuss ways
to improve iov_iter. His topic\
proposal listed a few different ideas including replacing some
iov_iter types and possibly allowing mixed types in chains of … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] An end to uniprocessor configurations
The Linux kernel famously scales from the smallest of systems to massive
servers with thousands of CPUs. It was not always that way, though; the
initial version of the kernel could only manage a single processor. That
limitation was lifted, obviously, but single-processor machines have always
been treated specially in the scheduler. That longstanding situation may
soon come to an end, though, if this patch\
series from Ingo M … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Tuesday
Security updates have been issued by Debian (python-django), Fedora (krb5), Mageia (cockpit, golang, kernel, and kernel-linus), SUSE (augeas, go1.23, go1.24, iputils, libwebp, transfig, and xen), and Ubuntu (amd64-microcode, apport, linux-azure, linux-azure, linux-azure-4.15, linux-azure-fips, linux-raspi, systemd, and tomcat). ⌘ Read more

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

攻克 Linux 內核 Oops：手把手教你從崩潰到破案！
作爲一名長期深耕 Linux 內核開發的博主，在這條探索之路上，我遭遇過無數的挑戰，而 Linux 內核 Oops 問題，絕對是其中讓人最爲頭疼的難題之一。還記得那是一個爲某項目開發定製 Linux 內核模塊的緊張時期，我滿心期待地將新編寫的驅動程序模塊加載到內核中，本以爲一切會順利進行，結果屏幕上突然跳出一大串密密麻麻的 Oops 錯誤信息，系統也陷入了不穩定的狀態。那一刻，我的心瞬間懸了起來， ⌘ Read more

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

Linux 內核內存管理：核心技術與優化策略
在 Linux 系統中，內存管理堪稱內核的核心功能之一，其運作機制複雜且精妙。Linux 採用虛擬內存技術，爲進程構建獨立的地址空間，借內存管理單元（MMU）將虛擬地址精準映射至物理地址，既保障進程間內存隔離，又防止相互干擾。物理內存管理上，Linux 以分頁機制爲基，將內存切爲固定大小頁（常見 4KB） ，由夥伴系統算法主導分配與回收。通過合併、分割內存頁，夥伴系統有效減少內存碎片，提升內存利用 ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Nyxt: the Emacs-like web browser
Nyxt is an unusual web
browser that tries to answer the question, “what if Emacs was a
good web browser?”. Nyxt is not an Emacs package, but a full
web browser written in Common Lisp and available under the BSD
three-clause license. Its target audience is developers who want a
browser that is keyboard-driven and extensible; Nyxt is also developed
for Linux first, rather than Linux being an afterthought or just a
sliver of its audience. The philosophy (as described … ⌘ Read more

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lobste_rs
feeds.twtxt.net
 (1y ago)

I Learned Rust In 24 Hours To Eat Free Pizza Morally
This is a satirical tech story. For readers who prefer the text version, it’s provided below.

I Learned Rust in 24 Hours to Eat Free Pizza Morally

This is not just a story about pizza. As a recent Phoronix article explains,
the Linux Rust subsystem got into major drama because of my humble quest.

Well, here’s my side of the story, with every kernel of truth exposed.

A Moral Quest for Pizza

Des … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Zero-copy for FUSE
In a combined storage and filesystem session at the 2025 Linux Storage,
Filesystem, Memory Management, and BPF Summit (LSFMM+BPF), Keith Busch led
a discussion about zero-copy operations for the Filesystem\
in Userspace (FUSE) subsystem. The session was proposed
by his colleague, David Wei, who could not make it to the summit, so Busch
filled in, though he noted that “I do … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Open source and the Cyber Resilience Act
The European Union’s
Cyber Resilience Act (CRA) has caused a stir in the
software-development world. Thanks to advocacy by the Eclipse Foundation, Open
Source Initiative, Linux Foundation, Mozilla, and others, open-source software
projects generally have minimal requirements under the CRA
— but nothing to do with law is ever quite
so simple. Marta Rybczyńska spoke at Linaro Connect 2025 about the impact of the
CRA on the open-source eco … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] LWN.net Weekly Edition for June 5, 2025
Inside this week’s LWN.net Weekly Edition:

  • Front: OpenH264 in Fedora; Wallabag; Safety certification; 6.16 Merge window; Bounce buffering; Hardening repository problems; Device-initiated I/O; Faster networking; OSPM 2025; Free software in science.

  • Briefs: Kea vulnerabilities; Alpine Linux 3.22.0; Fedora strategy; Quotes; …

  • Announcements: Newsletters, conferences, securi … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Device-initiated I/O
Peer-to-peer DMA (P2PDMA) has been part of
the kernel since the 4.20 release in 2018;
it provides a framework that allows devices to transfer data between themselves
directly, without using system RAM for the transfer. At the 2025 Linux
Storage, Filesystem, Memory Management, and BPF Summit (LSFMM+BPF), Stephen
Bates led a combined storage, filesystems, and memory-management session on
device-initiated I/O, which is perhaps what P2PDMA is … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Friday
Security updates have been issued by AlmaLinux (.NET 8.0, .NET 9.0, firefox, ghostscript, gstreamer1-plugins-bad-free, libsoup3, mingw-freetype, perl, ruby, sqlite, thunderbird, unbound, valkey, and xz), Debian (chromium, firefox-esr, libavif, linux-6.1, modsecurity-apache, mydumper, systemd, and thunderbird), Fedora (coreutils, dnsdist, docker-buildx, maturin, mingw-python-flask, mingw-python-flit-core, ruff, rust-hashlink, rust-rusqlite, and thunderbird), Red Hat (pcs), SUSE (augeas, … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Glibc project revisits infrastructure security
The GNU C Library
(glibc) is the core C library for most Linux distributions, so it is a
crucial part of the open-source ecosystem—and an attractive
target for any attackers looking to carry out supply-chain
attacks. With that being the case, securing the project’s
infrastructure using industry best practices and improving the
security of its development practices are a frequent topic among glibc
developers. A recent discussion suggests that improveme … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Allowing BPF programs more access to the network
Mahé Tardy led two sessions about some of the challenges that he, Kornilios Kourtis,
and John Fastabend have run into in their work on
Tetragon (Apache-licensed BPF-based security monitoring software)
at the Linux Storage, Filesystem, Memory Management, and BPF Summit. The session
prompted discussion about the feasibility of letting BPF programs
send data over the network, as well as potential new kfuncs to let BPF firewalls
send TCP reset packets. Tardy pre … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Wednesday
Security updates have been issued by AlmaLinux (gstreamer1-plugins-bad-free and kernel), Arch Linux (bind and varnish), Debian (glibc and syslog-ng), Fedora (microcode_ctl, mozilla-ublock-origin, nodejs20, and nodejs22), Mageia (firefox, nss, rootcerts, open-vm-tools, sqlite3, and thunderbird), Oracle (gstreamer1-plugins-bad-free, kernel, libsoup, nodejs:22, php, php:8.2, php:8.3, python-tornado, redis, and redis:7), Red Hat (libsoup, pcs, and python-tornado), Slackware … ⌘ Read more

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linux_gizmos
feeds.twtxt.net
 (1y ago)

Klinge FPGA Computer Targets Secure, Headless Linux Deployments
Klinge is a compact FPGA-based headless computer designed by Lone Dynamics Corporation. It targets secure networking and long-term Linux applications, and can be used as a blade server in modular enclosures or standalone setups. Klinge uses the Lattice ECP5 FPGA (LFE5U-25F), offering 24K LUTs when compiled with open-source tools. The board includes 512MB of DDR3L […] ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

AlmaLinux OS 10.0 released
Version\
10 of the AlmaLinux OS distribution has been released.

The goal of AlmaLinux OS is to support our community, and AlmaLinux
OS 10 is the best example of that yet. With an unwavering eye on
maintaining compatibility with Red Hat Enterprise Linux (RHEL), we
have made small improvements to AlmaLinux OS 10 that target
specific sections of our userbase.

See [the\
release notes](https://wiki.almalinux.org/release-notes/10.0.h … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Verifying the BPF verifier’s path-exploration logic
Srinivas Narayana led a remote session about extending
Agni to prove the correctness of
the BPF verifier’s handling of different execution paths as part of the Linux Storage,
Filesystem, Memory Management, and BPF Summit. The problem of ensuring the
correctness of path exploration
is much more difficult than the problem of
ensuring the co … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

The 6.15 kernel has been released
Linus has released the 6.15 kernel, as
expected.

So this was delayed by a couple of hours because of a last-minute
bug report resulting in one new feature being disabled at the
eleventh hour, but 6.15 is out there now.

Significant changes in 6.15 include smarter timer-ID assignment to make
checkpoint/restore operations more reliable, the [ability](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/comm … ⌘ Read more

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linux_gizmos
feeds.twtxt.net
 (1y ago)

Hardkernel Introduces Low-Cost Amlogic S905X5M SBC with 4K@60Hz HDMI Output
The ODROID-C5 is a compact single-board computer designed for developers and hobbyists working with Linux or Android platforms. It features improved performance, reduced power consumption, and enhanced memory and storage interfaces over its predecessor, the ODROID-C4. The board is powered by the Amlogic S905X5M processor, which combines a quad-core Arm Cortex-A55 CPU running at 2.5GHz […] ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Reports from OSPM 2025, day two
The seventh edition of the Power Management and Scheduling\
in the Linux Kernel Summit (known as “OSPM”) took place on March 18-20,
2025. Topics discussed on the second day include improvements to device
suspend and resume, the status and future of sched_ext, the scx_lavd
scheduler, improving the efficiency of load balancing, and hierarchical
constant bandwidth server scheduling. ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Formally verifying the BPF verifier
The BPF verifier is an increasingly complex and security-critical piece of code.
When the kinds of people who are apt to work on BPF see a situation like that,
they naturally question whether it’s possible to use formal verification to
ensure that the implementation of the code in question is correct. Santosh
Nagarakatte led the first of two extra-long sessions in the BPF track
of the 2025 Linux Storage, Filesystem, Memory Management, and BPF Summit
about his team’s work formally verifying the … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Friday
Security updates have been issued by Fedora (dotnet9.0, dropbear, ghostscript, nbdkit, openssh, python-watchfiles, rpm-ostree, yelp, yelp-xsl, and zsync), Oracle (firefox and kernel), Red Hat (osbuild-composer), Slackware (aaa_glibc and mozilla), SUSE (chromedriver, open-vm-tools, postgresql14, python-cryptography, and thunderbird), and Ubuntu (linux-aws, linux-hwe-5.4, python, and sqlite3). ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Thursday
Security updates have been issued by AlmaLinux (kernel, kernel-rt, and webkit2gtk3), Fedora (mozilla-ublock-origin and sudo-rs), Oracle (.NET 8.0, compat-openssl10, grafana, osbuild-composer, redis:6, ruby:2.5, and webkit2gtk3), SUSE (dante, firefox-esr, gnuplot, govulncheck-vulndb, grype, postgresql13, postgresql14, postgresql15, postgresql16, postgresql17, python-tornado6, python314, thunderbird, ucode-intel, and xen), and Ubuntu (bind9, libfcgi-perl, linux-ibm-5.4, linux-oracle-5.4 … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Wednesday
Security updates have been issued by AlmaLinux (.NET 8.0, avahi, buildah, compat-openssl10, compat-openssl11, expat, firefox, gimp, git, grafana, libsoup, libxslt, mod_auth_openidc, nginx, nodejs:22, osbuild-composer, php, redis, redis:7, skopeo, thunderbird, vim, webkit2gtk3, xterm, and yelp), Arch Linux (dropbear, freetype2, go, nodejs, nodejs-lts-iron, nodejs-lts-jod, python-django, webkit2gtk, webkit2gtk-4.1, webkitgtk-6.0, and wpewebkit), Debian (mongo-c-driver), Fedora (openssh, … ⌘ Read more

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linux_gizmos
feeds.twtxt.net
 (1y ago)

SiFive and Red Hat Collaborate to Bring RHEL 10 to RISC-V Development
SiFive has announced a new collaboration with Red Hat to deliver a developer preview of Red Hat Enterprise Linux 10 for the RISC-V architecture. The initial support is available on the SiFive HiFive Premier P550 development platform, giving developers a path to build and test enterprise and cloud workloads on RISC-V hardware. The HiFive Premier […] ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] An update on continuous testing of BPF kernel patches
Ihor Solodrai has been working on the BPF subsystem’s continuous-integration
(CI) testing for the last six months. At the 2025 Linux Storage, Filesystem,
Memory-Management, and BPF Summit, he remotely shared
an update on his work, and solicited feedback on how the tests could be further
improved. Much of the work he’s done has been specific to the BPF subsystem, but
some is more generic and could potentially be of use to other subsystems. He
also shared some general lessons le … ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

Security updates for Tuesday
Security updates have been issued by Debian (firefox-esr, openjdk-11, openjdk-17, and wireless-regdb), Fedora (iputils, open-vm-tools, sfnt2woff-zopfli, and woff), Red Hat (postgresql:12), SUSE (apache2-mod_auth_openidc, brltty, helm, python-maturin, and rubygem-rack), and Ubuntu (linux-azure-fips). ⌘ Read more

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lwn-net
feeds.twtxt.net
 (1y ago)

[$] Reports from OSPM 2025, day one
The seventh edition of the Power Management and Scheduling\
in the Linux Kernel (known as “OSPM”) Summit took place on March 18-20,
2025. It was organized by Juri Lelli, Frauke Jäger, Tommaso Cucinotta, and
Lorenzo Pieralisi, and was hosted by Linutronix at Alte Fabrik,
Uhldingen-Mühlhofen, Germany. The event was sponsored by Linutronix, Arm,
and the Scuola Superiore Sant’Anna in Pisa. ⌘ Read more

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

斬獲 4-1K star，再見 tcpdump！Kyanos 這款開源神器讓網絡分析快如閃電！
Kyanos 是一款基於革命性 eBPF 技術打造的開源網絡分析工具，專爲解決現代分佈式系統中的網絡疑難雜症而生。它能像 X 光機般透視 Linux 內核的網絡活動，精準定位 HTTP、Redis、MySQL 等協議的性能瓶頸，讓 “服務爲什麼變慢” 這類世紀難題迎刃而解。與傳統抓包工具相比，Kyanos 具備三大殺手鐧：零配置開箱即用：單個二進制文件搞定所有監控需求 內核級透視能力：從 ⌘ Read more

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

Go 語言中字符串四種拼接方式的性能對比，哪個更勝一籌？
在 Go 語言開發中，字符串拼接是最常見的操作之一。不同的拼接方式在性能上可能有數量級的差異，特別是在高頻調用或大數據量處理的場景下。本文將使用標準基準測試，全面對比四種主流字符串拼接方式的性能表現。測試環境與方法測試環境Go 版本：1.20+ 操作系統：macOS/Windows/Linux CPU：8 核 測試方法我們創建了一個完整的基準測試文件echobenchtest.g ⌘ Read more

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

Go 語言中字符串四種拼接方式的性能對比，哪個更勝一籌？
在 Go 語言開發中，字符串拼接是最常見的操作之一。不同的拼接方式在性能上可能有數量級的差異，特別是在高頻調用或大數據量處理的場景下。本文將使用標準基準測試，全面對比四種主流字符串拼接方式的性能表現。測試環境與方法測試環境Go 版本：1.20+ 操作系統：macOS/Windows/Linux CPU：8 核 測試方法我們創建了一個完整的基準測試文件echobenchtest.g ⌘ Read more

⤋ Read More