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JATtho

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JATtho ,

You want benzodiazepines? They are basically erase memory from [0.00 to 24.0] so I definitely wouldn’t recommend.

JATtho , (edited )

I wish lemmy communties existed for:

    1. How are you doing today?
    1. Did you discover anything new to your consciousnesses today?
    1. I fucke’ed today. Here is how.

Edit: yeah, I think I miss a few of the old subreddit’s. Even if there is an equivalent in lemmy, such communities are quite silent.

JATtho ,

BTW. With clang lto’d kernel 6.9. When non-Arch get the buggy updates, We have already moved on.

JATtho ,

I once helped a person with their computer. They complained the they cant save the their photos. Well, their onedrive was filled to brim with crap, while the local 1Tb disk was empty because they had zero idea how storage and folders work. I had to explain her there is literally 1000x more fast disk space available, so please dont save into onedrive.

JATtho ,

It tastes like banana? I’m in, I have been looking for bourbon that actually tastes like banana/pineaple…

JATtho ,

I’m actually bit sad that I had to move onto a ISP which has zero IPv6 support, as I previously did have IPv6. The last thing I did on that connection was to debug the hell out of my IPv6 code I had developed.

JATtho ,

Mint was the distro that converted me. After 8-10 years, I’m still using the cinnamon DE, but just on top of Arch. Next hope is the devs port it over wayland so I can also ditch xorg. (There is a demo/alpha available)

JATtho ,

Wayland has much more up-to-date graphics technologies behind it to put it simply.

Don't you all get tired of the constant negativity?

Despite not subscribing to political communities and having a large number of content filters based on keywords, my feed here is still for a large part all negative articles and ragebait. Elon Musk this and Israel that. Microsoft ruining windows, AI ruining internet, right wingers and capitalism ruining the world, police being...

JATtho ,

I try to filter out most of this negative stuff, but it has a downside. You become disconnected from the raw information feed if you don’t occasionally just look at it. For short periods, it’s tolerable, but then I just re-enable all filtering to reduce my cognitive load.

If I need to be cheered up, I prefer to look for science articles or news since these are generally about unbiased progress.

JATtho ,

Holy fuck I have not seen this fresh wtf garbage in ages. Thanks.

JATtho ,

I once said that the current “AI” is just a excel spread sheet with a few billion rows, from what all of the answer gets interpolated from…

JATtho ,

But it’s the spaghetti cabling that makes it work and highly robust.

JATtho ,

Especially now that they’ve started releasing tritiated water into the ocean for the next 20-50 years or whatever the fuck the plan is supposed to be.

the tritiated water is no-more concentrated than what other power plants around the world release. (the latter may be surprising to know) In addition, tritium has a half-life of only 12.3 years and is diluted in a literal sea, which is an extremely good radiation shield.

JATtho ,

So, now they are slowly (or immediately and forever, I don’t know the time span) injecting propaganda into their clone of wikipedia and they are simultaneously thus admitting they are doing it. (to further brainwash the russian citizens)

So lettme repeat: FUCK PUTIN, and stuff your rubber clones in your ass. (which there are many of)

JATtho ,

I have been using uBlock Origin and uMatrix together for so long, that I don’t remember when they became permanent must have… uBlock origin sanitizes the site, while uMatrix prevents any surprises since I last visited a site. The more garbage the site is, the more broken it is on my setup.

JATtho ,

The lesser known add-on ny Raymond Hill: addons.mozilla.org/fi/firefox/addon/umatrix/

JATtho ,

He fixed the standard model of particle physics. He was also the reason why this was built to prove his theory.

JATtho ,

Fusion triple product: the duration the thing works x inverse of how close you are to melting the reactor vessel x how large is the reactor vessel

JATtho ,

The in-rush of endorphins when the modded LCD thing actually worked probably knocked you out?

A bit of a side story: I disassemble probably 1–5 panels in a week. (For recycling, it takes about 20-45min per panel.) The flat cables alone are so flimsy, I would say just assembling a display again from known, matched and functional parts would take days. I would triple or quadruple that to assemble a display from random parts. Considering this, that modded panel is quite amazing to me.

In standalone panels, the PSU has a chance of killing you: the main capacitors can hold multiple joules worth of nope, charged to about 400v. So, if the main caps are not allowed to discharge (if they discharge at all that is), there is a possibility of death when disassembling a panel with an integrated PSU. Waiting “5min” is bad; a PSU needs to be unplugged for a day or two at least before the charge drains out.

JATtho ,

I put too way too much effort in this reply… Yes… it’s nerve racking, especially if you are resorting to BIOS flashback to boot the CPU on an older (new) board.

Can’t get visuals (except maybe leds/indicators on the motherboard itself) when your CPU is incapable of accessing the ram or the devices yet. All external devices normally communicate through the RAM. (And by external, I mean not on the CPU package) Yet, the CPU has to solve out this chicken-and-egg problem of how to progress from the cold-boot without knowing what external RAM is installed. There are plethora of timing/clock-cycle/voltage settings for one stick of ram, which are tested on POST. Establishing sane DDR5/4 parameters is non-trivial. (I think it is order of +20!, twenty factorial: 2432902008176640000, if there were no starting point of XMP, JEDEC etc.)

I use hand tuned settings for DDR4, and on cold boot, the BIOS adjust the settings which I didn’t forbid it to do. Unless I unplug the PSU from the wall, the BIOS won’t retrain the memory again. I suspect my settings still aren’t 100% stable. (over period of years) Non-cold-boot assumes the ram works 100% same on each power up. If some OC setting drifts past a threshold once the system is heat soaked or receives more EMI interference, this could provoke a crash/BSOD etc. in absurd theory having a busy wifi router next the ram could cause the bios to select more robust/conservative settings to counter the EMI interference. Would be fun to know, if this would be true.

JATtho , (edited )

I just did: “rm -rf xz”


<span style="color:#323232;">pacman -Syu
</span><span style="color:#323232;">find / -name "*xz*"  | sort | grep -e '.xz$' | xargs -o -n1 rm -i 
</span><span style="color:#323232;">pacman -Qqn | pacman -S -
</span>

(and please, absolutely don’t run above as root. Just don’t.) I carefully answered to retain any root owned files and my backups, despite knowing the backdoor wasn’t included in the culprit package. This system has now “un-trusted” status, meaning I’ll clean re-install the OS, once the full analysis of the backdoor payload is available.

Edit: I also booted the “untrusted” system without physical access to the web, no gui, and installed the fixed package transferred to it locally. (that system is also going to be dd if=/dev/zero’d)

JATtho ,

The backdoor has existed for a month at least. Yikes.

<a href="">https://www.openwall.com/lists/oss-security/2024/03/29/4</a>

JATtho ,

I would highly recommend Curve25519, etc., just because such keys are faster and less common than RSA public-private keys in today’s world. RSA 2048-bit keys are considered weak today, while the Curve25519 256-bit keys remain stronger. Also, the ChaCha20-Poly1305 cipher has an interesting backstory and doesn’t necessarily need hardware acceleration (which, in theory, could be borked by the HW-vendor) to obtain good performance.

Unfortunately, some SSH front-ends don’t play nice with Curve25519 public-private keys yet… (I’m pointing at the putty SSH client, but that may have improved from the last time I had to use it)

Linux error starter pack (lemm.ee)

Alt Text> Linux Error Messages That Go Hard Starter Pack ERROR: Failed to mount the real root device. Bailing out, you are on your own. Good luck.``WARNING: The following essential packages will be removed. This should NOT be done unless you know exactly what you are doing! sysvinit initscripts (due to sysvinit) sysv-rc (due...

JATtho ,

BIOS/UEFI likely tried to fuck up the CPU, or hardware fault. NMI => Non Maskable Interrupt.

JATtho ,

The first kernel I built was not entirely happy with the .config I had made for it. Only thing it could do was BEEP-ing in panic for any key presses. [insert noot noot meme]

JATtho ,

This was an yet another glorious episode from veritasium.

I hope we get well past UVC LEDs. (i.e., shorter wavelengths) UV LEDs are already available. Unfortunately, this progress will stop before X-ray light. With +1 KeV energy, you pretty much must blast off the electrons from the atoms to emit X-rays, which an x-ray tube already does. Or by peeling off a piece of scotch tape.

JATtho ,

Maybe not in a flashlight, but the scientific industry would be very pleased with them. Sterilize water and all surfaces in a second? Flash with 200nm light.

JATtho ,

Gamma rays have so much energy that they are basically emitted only by nuclear processes, as far as I know.

JATtho ,

I read the article enough to find that the Nightshade tool is under EULA… :(

Because it definitely is not FOSS, use it with caution, preferably on a system not connected to internet.

JATtho ,

SUPERNOVAE

  • Earthlings: Uhh, nice light for months!
JATtho ,

Windows: $ insmod < “shady-ring0-blob-from-internet.sys.cn” What could possibly go wrong?

JATtho ,

I ate both. Nothing really happened to me, but the matrix has been glitching though…

JATtho ,

Shorter version: Operating systems set up hardware locks and protections to confine processes, and once set up, they cannot be undone. (the hardware + OS denies modifications to the security policy)

  • Attacker broke out from the app sandbox. (attacker can run code in the infected process)
  • Broke out of the process. (gained root access; attacker can run anything)
  • Broke into the kernel space (gained 100% control over the hardware)
  • Corrupted some kernel memory via a damm magic MMIO accesses nobody knows (hardware vulnerable)
  • Bypassed protections that kernel set up earlier such that it cannot accidentally modify itself.
  • Finally broke the kernel via hardware exploit thus the attacker got rootkit level access.

Getting arbitrary code execution and root access is one thing, but breaking out from the damm kernel configured hardware protections is insane.

They basically managed to flip a “read-only” switch to “modify-as-much-as-you-like”. The infected device at this point is broken beyond repair, as the firmware(s) may have been tampered with. End result is a terrestrial spy brick.

JATtho ,

Quantum computing is going to make it possible to solve problems that normal computers simply cannot do.

Most of these are optimizing problems like “compute the best solution to traveling salesman” or “find a molecule that binds to this receptor”.

On normal computers solving such problems “perfectly” takes^exponential^ amount of computing time vs. the size of the problem.

Quantum computers are going to chop down that exponential thing a little, so we can see the results before the sun burns out. The reason QCs are theoretically able to do this is that each added qubit improves the machines performance exponentially.

However, the qubit state is so fragile that we need hundreds of them to make a single “stable” logical qubit that can do operations repeatedly. What the quantum computer uses as qubit (photons, super-conducting wire) is irrelevant as long as the system can do useful work.

Because of the fragility, the results are gathered using thousands of runs on the quantum machine and measured statistically.

We are not quite there yet to solve any useful sized problems.

JATtho ,

Finland’s blank NATO papers were kept in a safe (30 years figuratively?) and as soon as the war(s) started to cause us harm, they were pulled out of the safe and ratified.

From the news at the time of NATO ratification: “Look in the mirror” - Sauli Niinistö

From the news of the last two weeks: Now the eastern border is pretty much closed for the foreseeable future.

My armchair stance: If the Soviets angered nearly 4 million Finns in the 1940s who had only pitchforks and cows and the result was 126 875 dead and 188 671 wounded Soviets. ^*^ Now there is a nation of +5 600 000 grumpy Finns with access to modern weaponry and a bitter memories of the past…

I don’t know what the russian leaders are hallucinating trying to anger us more? :P

JATtho ,

Our sorrow of the year is the death of Martti Ahtisaari, a Peace Nobelist. May his legacy to be respected in honor, his wisdom would be in great need as of today.

Sauli Niinistö, who will soon peacefully leave us as a president and join the same history books. Sad we can’t have a another Kekkonen, depends who you ask. I hope the next president will have a stone cool head in this heated world.:)

JATtho ,

What pressuring? They’re scared to shit to point of hallucinating threats because they think because we have a prime-eval grudge against them.

If they magically would co-operate with us, drop their shit we would more than happy resume the trade with them.

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