#Kernel

2025-05-18

Why do I have to do `rmmod kvm_intel` in 25.04 to use VirtualBox #kernel #virtualbox #2504

askubuntu.com/q/1547941/612

2025-05-18

Expect the last release candidate of Linux 6.15 as early as today!

Mert Gör 🇹🇷hwpplayer1@infosec.exchange
2025-05-17

Me personally as a hacker , believe in martial arts and practice it in every situation in life. When it comes to music, other arts, science, sports, politics, human relationships. I believe in Freedom and Openness ... Some people say you are "too open" and tell everything you do. But on my take this is my personality. When it comes to "Open Source" I believe in trying everything whether it is free or nonfree open or not ... Because I know that yes I know that I can hack my own software , hardware , scientific algorithms and artistic contributions to the humanity, society anytime.

My question is to you Mr Linus Torvalds, do you belive GNU/Linux or Linux whatever we say, the Operating System Distributions can we make something like a community who helps others while helps themself but taking care of the whole ecosystem , not a part like pentesting, server, embedded , or any other.

Because I don't want to miss any thing.

Thanks for your contributions ! and Enjoy your rest of life. Because you have the right to do that and you deserve that.
#freesoftware #freesociety #opensource #GNU #kernel #hurd #Linux

casey @ Linaro Connectcas@treehouse.systems
2025-05-17

question for #kernel folks, i have my dead name in a bunch of files as author/copyright comments, is it ok to just send one big patch to update all these files in the kernel?

i would send a second patch to update the mailmap as well

edit: ok patch sent and almost immediately picked :3

lore.kernel.org/all/2025051722

2025-05-17

Black screen on boot with kernel 6.12 after iwlwifi and GPU fixes on Huawei Matebook 14 (Intel Core Ultra 5, Ubuntu 20.04) #drivers #2004 #kernel #xorg

askubuntu.com/q/1547865/612

Marcel Waldvogelmarcel@waldvogel.family
2025-05-16

All you never wanted to know about creating fast socket I/O on #Linux. Unless you are a real geek.

A small, ultra-high performance publish-subscribe server doing kind of TCP #multicast using #sendfile, #io_uring, #splice, (mapped) files, and #fallocate for file hole punching.

Saturating a 10 Gbps link with useful data with just 8 cores.

A beautiful writeup for anyone into fast Linux networking. Not just for #ATproto

h/t @nohillside
#PubSub #Kernel #Hacking
asayers.com/jetrelay

Ersatz social image for the article; screenshot of title and abstract:

"
Let the kernel do the work!
Tricks for implementing a pub/sub server

This post explains the design of jetrelay, a pub/sub server compatible with Bluesky’s “jetstream” data feed. Using a few pertinent Linux kernel features, it avoids doing almost any work itself. As a result, it’s highly efficient: it can saturate a 10 Gbps network connection with just 8 CPU cores.
May 2025
"
2025-05-16

IPv6 forwarding broken with 25.04 / systemd 257.4 / 6.14 kernel #kernel #ipv6 #systemdnetworkd

askubuntu.com/q/1547846/612

2025-05-16

:linux: Linux Developers want to remove i486 & i586 Pentium CPU Support to unburden Kernel Developers.

Linux is renowned for supporting incredibly ancient hardware, but there are limits to even what Linux developers can support. “Linux developers are finally proposing removing support for ancient i486 and early i586 Pentium CPUs to unburden developers.”

phoronix.com/news/Linux-RFC-Re

#linux #kernel #i486 #i568 #pentium #support #it #engineer #media #tech #news

[ImageSource: Shutterstock]

Linux developers have considered removing i486 support as far back as 2022, but there now appears to be mounting pressure to execute those wishes. For reference, Linux dropped support for the i386 series in 2012, marking 13 years since the last time the Linux kernel discontinued support for a deprecated CPU series.

The i486 series is an ancient Intel CPU lineup that launched back in 1989, representing Intel's fourth generation of binary-compatible CPUs. The i486 introduced several key technologies, such as a large on-chip cache and an integrated floating-point unit, components that are used in almost every single modern CPU. Depending on the model, i486 chips took advantage of 1000nm down to 600nm process nodes, with clock speeds ranging from around 20 MHz to 100 MHz. Production of the last i486 chips was discontinued in 2007.

The i586 series, also known as Intel's first Pentium-branded processor lineup, succeeded the i486 series. The original Pentium, introduced in 1993, brought along improvements from the i486 series, including a dual-integer pipeline design and a more advanced floating-point unit. The first-generation Pentium [or P5] was built on an 800nm process with clock speeds ranging from 60 MHz to 66 MHz, depending on the model.
🐧sima🐧sima@chaos.social
2025-05-16

great article about lock-free programming in rust

yeet.cx/blog/lock-free-rust/

I think it comes with just barely enough caution and bright warnings to just not, similar to my own take

blog.ffwll.ch/2023/07/eoss-pra

#kernel

Thorsten Leemhuis (acct. 1/4)kernellogger@hachyderm.io
2025-05-16

2/ Dave meanwhile suggested to "remove support for TSC-less and CX8-less CPUs" from the #Linux #kernel 6.17, but Ingo likely will send it in for #LinuxKernel 6.16:

"And since Linus asked for this and semi-acked it, I might try sending
this in this merge window […]"

lore.kernel.org/lkml/aCX9iN5Bx

2025-05-16

UEFI Hii Database access from user space #kernel #uefi #intel #grubefi #arm

askubuntu.com/q/1547747/612

Thorsten Leemhuis (acct. 1/4)kernellogger@hachyderm.io
2025-05-15

Support for 486-style CPUs is scheduled to be removed from #Linux according to lots of news sites. But the truth is that the relevant #kernel patches haven't even reached -next yet.

But yes, it likely will be removed. If for #LinuxKernel 6.16 or a later version remains to be seen.

Today things progressed again somewhat, as the second version of the removal patches were posted for review:

[PATCH -v2 0/15] x86: Remove support for TSC-less and CX8-less CPUs – lore.kernel.org/lkml/202505150

Khurram Wadee ✅mkwadee@mastodon.org.uk
2025-05-15

Now running #linux #kernel 6.14.6.

2025-05-15

UEFI Hii Database access from user space #boot #kernel #uefi #intel #arm

askubuntu.com/q/1547747/612

2025-05-15
Improving network filtering performance with Bpfilter
(free link) https://lwn.net/SubscriberLink/1017705/ca0af831379ca794/

From servers in a data center to desktop computers, many devices communicating on a network will eventually have to filter traffic, whether for security or performance reasons. Bpfilter is a project that allows packet filtering to be done with BPF, which can be faster than other mechanisms. Even small performance improvements in this area can lead to significant gains.

#linux #kernel #bpfilter #bpf
2025-05-14

Was Sie schon immer über #Hibernate & #Resume im #Linux-#Kernel wissen wollten, bisher aber nicht zu fragen wagten:

tookmund.com/2024/09/hibernati

Eyeballing a #psvr2 for my #sony #ps5 and I’d also like to use it on my Lenovo Legion 7 Pro running #cachyos #linux and #steam but it seems like it might never happen.. Who can make this happen? @gamingonlinux?
#kernel #vr #gaming

Chema Alonso :verified:chemaalonso@ioc.exchange
2025-05-14

El lado del mal - Cómo pasar del exploit automático de bugs hecho por IA a la detección de malware en nanosegundos con eBPF & Spectral Clustering elladodelmal.com/2025/05/como- #malware #hardening #kernel #ebpf #exploiting #bug

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