linux
[$] In search of faster this_cpu operations
The kernel's this_cpu operations are meant to speed access to per-CPU variables. They are more optimal on some CPUs than others, though. During a memory-management-track session [...]
Veronica Explains creates fun and interesting videos about technology including FOSS, Linux, retro computing, retro gaming, self-hosting and assorted other stuff. You can follow at:
➡️ @vkc
There are already 60 videos uploaded. If these haven't federated to your server yet, you can browse them all at https://tinkerbetter.tube/a/vkc/videos
#FeaturedPeerTube #Linux #FOSS #RetroComputing #RetroGaming #SelfHosting #PeerTube
I've overhauled my Patreon! I'm now focused on making CC0 software for Linux and Windows - free, open source, no strings attached. If you want to support the work, vote on what gets built next, or just follow along, the new tiers are live now. Everything I make will always be free for everyone, but if you believe in what I'm doing, this is the best way to help 🙂
https://www.patreon.com/lashman
#CC0 #OpenSource #FOSS #Linux #Windows #FreeSoftware #CreativeCommons #Patreon
I did a cool dumb thing using #Krita (openSUS) and #Inkscape (fedorable)
openSUS is not an original idea, but I didn't see anyone make a good shareable version
fedorable is an original idea using the floof emoji from @volpeon
https://memes.rabbitictranslator.com/fedorable.webp
A paper jam didn't just ruin his print job; it forced him to launch a global revolution about software freedom. He didn’t just write a text editor; he wrote a self-extending, Lisp-based universe disguised as one. He won a MacArthur "Genius" Grant and used the money to fight proprietary software. He is The Most Free Man In The World. #FreeSoftware #SoftwareFreedom #GNU #Linux #Emacs
Review of GNOME Core App Image Viewer (Loupe)
A complete review of GNOME Image Viewer (Loupe) application with overview, advantages, criticisms, image formats, keyboard shortcuts, and install.
https://www.adamsdesk.com/posts/review-gnome-core-app-loupe/
pnmnorm (1) - normalize the contrast in a Netbpm image
I am a human, but my little bot posts a random Linux command daily. If you don't want to see it you can mute the LinuxLexiconBot hashtag.
Happy hacking!
ap/qemu-10.2.2-x86_64-2.txz: Rebuilt.
Recompiled against libcacard-2.8.2, libslirp-4.9.1, spice-0.16.0,
and usbredir-0.15.0.
Thanks to Daedra.
ap/qemu-guest-agent-10.2.2-x86_64-2.txz: Rebuilt.
l/graphviz-14.1.4-x86_64-1.txz: Upgraded.
l/libcacard-2.8.2-x86_64-1.txz: Added.
Needed by qemu-10.2.2.
Thanks to Matteo Bernardini.
l/usbredir-0.15.0-x86_64-1.txz: Added.
Needed by qemu-10.2.2.
Thanks to Matteo Bernardini.
n/libslirp-4.9.1-x86_64-1.txz: Added.
Needed by qemu-10.2.2.
Thanks to Vijay Marcel.
n/spice-0.16.0-x86_64-1.txz: Added.
Needed by qemu-10.2.2.
Thanks to Matteo Bernardini.
n/spice-protocol-0.14.5-noarch-1.txz: Added.
Needed by spice-0.16.0.
Thanks to Matteo Bernardini.
Slackware doesn't make noise. It just delivers. 💪
#Slackware #QEMU #Linux #Development
#introduction
Hello,
I am a #sysadmin looking to keep up to date with new stuff going on in tech, both in the professional industry and hobby, #selfhosting #selfhosted arena.
If it’s tech I’m probably interested in it, but specifically I am messing with #meshcore these days and trying to self-host a #discord alternative. I love #linux and #unix and nerd out over the history of both.
It says something about how miserable working with Windows and MS Word is for me that I chose to work around a bug that SHOULD make #LibreOffice under #Linux impossible for my work rather than resort to the functional Windows 11 computer that sits 60 cm to my left.
Specifically, any typing in Korean input while tracking changes in Linux/LibreOffice Writer causes LO to crash, meaning I really can't and shouldn't use it for my current assignment which involves adding tracked changes in Korean. However, it's such a nightmare to use Windows/Word, which is theoretically fine for this work, I chose violence — specifically, to copy-and-paste text into LO with track changes on. Need to add just a single character? Can't type it directly into the document, need to go through the text editor and copy-paste. How could this be happening? Will it ever be fixed? Fuck if I know, I hate everything at this point but it seems I hate Microsoft products a tiny bit more than everything else.
Since #Peertube fixed their media RSS feed, I can follow Peertube channels in my favorite podcast app again. I know Booktube doesn’t really exist over here yet, so what are your favorite Lets Play and Linux PeerTube channels? #Gaming #Linux #LetsPlay
What is the oldest Linux distro?
The Nintendo Switch Switch https://lobste.rs/s/83ighu #hardware #linux
https://blog.cynthia.re/post/nintendo-switch-ethernet-switch
This one might be interesting to anyone interested in computer gaming history.
I spent the last couple of weeks finally finishing a project I started for Bletchley Park about 20 years ago. Recreating the original MUD and MIST on a mirror of the original Essex University system that finally closed in 1991.
Roy Trubshaw and Richard Bartle wrote the first online multi-user game (MUD) on Essex University's DECSystem-10 in 1978 and it ran till I closed it in 1991. I diligently backed everything up so I could potentially recover it one day, but as far as I can see, all the DECSystem-10's went to the great scrapyard in the sky, my backups were mostly stolen when my first museum was stolen, and I had huge issues recovering the Essex BCPL compiler to compile what I had left when I finally got a decent TOPS-10 emulator running on a VAX for Bletchley Park.
One good thing about being an unemployable whistleblower is free time, so I finally hunkered down to some 90 hour weeks and built a software replica of the Essex system I think reflects it well. It's running on a KS10 not a KL10 but I had to let some things slip.
I put the latest known versions of MUD and MIST on it, and miraculously found ROCK too.
So, to meander to the point, if you want to see and relive exactly what online multi user gaming was like from 1978 to 1991, you can go to:
Or:
telnet telnet.dec10.uknet.net
(Port 2653 is available for ISPs that block 23)
And then follow the terse instructions from there.
In those days, you were generally faced with a "." prompt and left mostly alone, so for authenticity, I will leave it at that.
I should note that although they were, in their day, wildly popular games with a relatively huge community, this is a museum peice in snapshot-form at the moment. But I will leave them up and running to see what happens and as a useful reference. I wasn't going to, but Richard seemed happy to have MUD running, and former MIST players wanted it back, so...
Pop this a share if you know folks who might be interested.
** Update: New web client that works better.
** Another update - I added a telnet client.
Historically, the telnet connection is much more true to the traditional experience, where you were connecting to a working machine that didn't care about the MUD Guests, so there were no pointers at all. Just rumour and hearsay :)
If any of you Unix/Security people notice I messed up something, please tell me. I left "^], !sh" open on the telnet link for about 2 minutes and nearly had a heart-attack once I spotted it :D
#history #digital #retrogaming #retrocomputing #games #mud #muds #mist #rock #computers #emulation #emulators #vms #tops10 #museum #history #bletchleypark #simh #essex #uk #computinghistory #36bit #engineering #Linux #Security
(don't try this on a phone!)
#Linux #FreeBSD #KDE #QEMU #KVM
FreeBSD with KDE 6 running in QEMU/KVM Virtual Machine,with Firefox visit Wikipedia.
There's a steep learning curve with FreeBSD.
#TIL In bash you can create multiple (nested) directories with a single compact line:
❯ mkdir -p a/{b,c/{x,y},d/{e,f}}
❯ tree
.
└── a
├── b
├── c
│ ├── x
│ └── y
└── d
├── e
└── f
Chasing down why installing the kernel segfaulted https://lobste.rs/s/ihqekl #debugging #linux
https://sporks.space/2026/05/19/chasing-down-why-installing-the-kernel-segfaulted/
A Linux Kernel 0-day Journey - From a limited UAF to Physical Memory R/W https://lobste.rs/s/h9zpbs #linux #security
https://1day.dev/posts/linux-kernel-0day.html
The fastest Linux timestamps https://lobste.rs/s/viax22 #linux #performance
https://www.hmpcabral.com/2026/04/26/the-fastest-linux-timestamps/
I have no idea how this site works. Complete muppet. But always keen to hear people talk with kindness and expertise on #Auspol #linux #basketball and anything else. Feel free to explain Masterdon to me like I'm 5, because I set up an account when Twitter died and then have mostly bluesky'd.
Little Snitch for Linux via @eh https://lobste.rs/s/2zrhn4 #linux #release #security
https://obdev.at/blog/little-snitch-for-linux/