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Justin @lemmy.jlh.name

(Justin)

Tech nerd from Sweden

Posts 7
Comments 839
There is no fix for Intel’s crashing 13th and 14th Gen CPUs — any damage is permanent
  • ARM laptops don't support ACPI, which makes them really hard for Linux to support. Having to go back two years to find a laptop with wifi and gpu support on Linux isn't practical. If Qualcomm and Apple officially supported Linux like Intel and AMD do, it would be a different story. As it is right now, even Android phones are forced to use closed-source blobs just to boot.

    Those numbers from Amazon are misleading. Linus Torvalds actually builds on an Ampere machine, but they don't actually do that well in benchmarks.

    https://www.phoronix.com/review/graviton4-96-core

  • There is no fix for Intel’s crashing 13th and 14th Gen CPUs — any damage is permanent
  • Datacenter cpus are actually really good for NASes considering the explosion of NVMe storage. Most consumer CPUs are limited to just 5 m.2 drives and a 10gbit NIC. But a server mobo will open up for 10+ drives. Something cheap like a first gen Epyc motherboard gives you a ton of flexibility and speed if you're ok with the idle power consumption.

  • There is no fix for Intel’s crashing 13th and 14th Gen CPUs — any damage is permanent
  • There's no 100% way until the new microcode is released next month. All affected CPUs are at risk of silicon degradation by the excessive voltage.

    The are some power limits and July bios updates you can use that Intel says can help reduce the damage or prevent it entirely in some scenarios. I believe the damage is specifically caused by single threaded spikes, so reducing LLC and running something like prime95 in the background might hold the voltage low enough that it won't happen. But there is no fix yet, so if your CPU is susceptible, running it will degrade the CPU, at least until the fix is out.

  • There is no fix for Intel’s crashing 13th and 14th Gen CPUs — any damage is permanent
  • Intel is about to have a lot of lawsuits on their hands if this delay deny deflect strategy doesn't work out for them. This problem has been going on for over a year and the details Intel lets slip just keep getting worse and worse. The more customers that realize they're getting defective CPUs, the more outcry there'll be for a recall. Intel is going to be in a lot of trouble if they wait until regulators force them to have a recall.

    Big moment of truth is next month when they have earnings and we see what the performance impact from dropping voltages will be. Hopefully it'll just be 5% and no more CPUs die. I can't imagine investors will be happy about the cost, though.

  • The Rule
  • Old Epyc boards are super cheap on eBay. 8 channels of ddr4 and 80-100 lanes of pcie for nvme on an ATX mobo. You pay for the idle power consumption, but it's pretty cheap overall.

  • A Test for Harris: How to Talk About the Green New Deal: In the Senate, Kamala Harris backed an expansive climate plan. Young activists want her to embrace it again, but so do Republicans.
  • Green new deal has been super popular in Europe.

    But still, all she has to do is adapt her climate policy and call it something else. Even just banning new oil development and single family zoning would be a huge step up from Biden. She could also ban new fossil fuel cars by 2030, subsidize local public transport projects, and subsidize grid connections for wind and solar. None of those things are significantly propagandizable.

  • Biden says he’ll call for Supreme Court reform in final months in office
  • The argument that the Supreme Court made pretty boils down to "if you let the president go to trial for Navy SEALing a Supreme Court Justice, then the chilling effect of potential litigation would make the president too scared to kill Osama Bin Laden. Therefore the president has legal immunity when Navy SEALing Supreme Court justices".

    So yes, the Supreme Court actually believes that litigating a president could literally cause another 9/11.

  • Biden says he’ll call for Supreme Court reform in final months in office
  • Biden is allowed to kill Supreme Court justices because he might need to Navy SEAL people for security reasons. Allowing litigation on Biden's SEAL powers would irreparably restrict Biden's agency as commander in chief and would literally cause a 9/11

  • US VP Harris to meet Netanyahu this week at White House
  • Anything but voting for Harris would be supporting Trump, an even worse pro-genocide candidate. You can't equate Harris, who's calling for a ceasefire, with Trump, who gave Israel Jerusalem and is telling Israel to keep going with the genocide.

  • www.wired.com How One Bad CrowdStrike Update Crashed the World’s Computers

    A defective CrowdStrike kernel driver sent computers around the globe into a reboot death spiral, taking down air travel, hospitals, banks, and more with it. Here’s how that’s possible.

    How One Bad CrowdStrike Update Crashed the World’s Computers

    https://web.archive.org/web/20240719155854/https://www.wired.com/story/crowdstrike-outage-update-windows/

    "CrowdStrike is far from the only security firm to trigger Windows crashes with a driver update. Updates to Kaspersky and even Windows’ own built-in antivirus software Windows Defender have caused similar Blue Screen of Death crashes in years past."

    "'People may now demand changes in this operating model,' says Jake Williams, vice president of research and development at the cybersecurity consultancy Hunter Strategy. 'For better or worse, CrowdStrike has just shown why pushing updates without IT intervention is unsustainable.'"

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    Security News @infosec.pub Justin @lemmy.jlh.name
    www.bleepingcomputer.com Leaky Vessels flaws allow hackers to escape Docker, runc containers

    Four vulnerabilities collectively called "Leaky Vessels" allow hackers to escape containers and access data on the underlying host operating system.

    Leaky Vessels flaws allow hackers to escape Docker, runc containers
    0

    Runc vulnerability CVE-2024-21626 allowing container escape in all Docker and Kubernetes environments

    www.docker.com Docker Security Advisory: Multiple Vulnerabilities in runc, BuildKit, and Moby

    Docker security advisory about multiple vulnerabilities in runc, BuildKit, and Moby: We will publish patched versions of runc, BuildKit, and Moby on January 31 and release an update for Docker Desktop on February 1 to address these vulnerabilities.  Additionally, our latest Moby and BuildKit re...

    Docker Security Advisory: Multiple Vulnerabilities in runc, BuildKit, and Moby

    Seems like a really serious vulnerability, any container attack or malicious image could take over a container host if there's no hardening on the containers.

    3

    Bit of a weird observation: "Seeing a new computing paradigm coming out of Data Science / Observability"

    I wanted to share an observation I've seen on the way the latest computer systems work. I swear this isn't an AI hype train post 😅

    I'm seeing more and more computer systems these days use usage data or internal metrics to be able to automatically adapt how they run, and I get the feeling that this is a sort of new computing paradigm that has been enabled by the increased modularity of modern computer systems.

    First off, I would classify us being in a sort of "second-generation" of computing. The first computers in the 80s and 90s were fairly basic, user programs were often written in C/Assembly, and often ran directly in ring 0 of CPUs. Leading up to the year 2000, there were a lot of advancements and technology adoption in creating more modular computers. Stuff like microkernels, MMUs, higher-level languages with memory management runtimes, and the rise of modular programming in languages like Java and Python. This allowed computer systems to become much more advanced, as the new abstractions available allowed computer programs to reuse code and be a lot more ambitious. We are well into this era now, with VMs and Docker containers taking over computer infrastructure, and modern programming depending on software packages, like you see with NPM and Cargo.

    So we're still in this "modularity" era of computing, where you can reuse code and even have microservices sharing data with each other, but often the amount of data individual computer systems have access to is relatively limited.

    More recently, I think we're seeing the beginning of "data-driven" computing, which uses observability and control loops to run better and self-manage.

    I see a lot of recent examples of this:

    • Service orchestrators like Linux-systemd and Kubernetes that monitor the status and performance of services they own, and use that data for self-healing and to optimize how and where those services run.
    • Centralized data collection systems for microservices, which often include automated alerts and control loops. You see a lot of new systems like this, including Splunk, OpenTelemetry, and Pyroscope, as well as internal data collection systems in all of the big cloud vendors. These systems are all trying to centralize as much data as possible about how services run, not just including logs and metrics, but also more low-level data like execution-traces and CPU/RAM profiling data.
    • Hardware metrics in a lot of modern hardware. Before 2010, you were lucky if your hardware reported clock speeds and temperature for hardware components. Nowadays, it seems like hardware components are overflowing with data. Every CPU core now not only reports temperature, but also power usage. You see similar things on GPUs too, and tools like nvitop are critical for modern GPGPU operations. Nowadays, even individual RAM DIMMs report temperature data. The most impressive thing is that now CPUs even use their own internal metrics, like temperature, silicon quality, and power usage, in order to run more efficiently, like you see with AMD's CPPC system.
    • Of source, I said this wasn't an AI hype post, but I think the use of neural networks to enhance user interfaces is definitely a part of this. The way that social media uses neural networks to change what is shown to the user, the upcoming "AI search" in Windows, and the way that all this usage data is fed back into neural networks makes me think that even user-facing computer systems will start to adapt to changing conditions using data science.

    I have been kind of thinking about this "trend" for a while, but this announcement that ACPI is now adding hardware health telemetry inspired me to finally write up a bit of a description of this idea.

    What do people think? Have other people seen the trend for self-adapting systems like this? Is this an oversimplification on computer engineering?

    12

    Heads up Linux users: Patch 13.23 is currently crashing in game

    The latest patch today, 13.23 makes the game instacrash after champ select, be warned. Don't start a match on Linux until it's fixed.

    https://leagueoflinux.org/

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    Facebook and Instagram users in the European Union will be charged up to €12.99 a month for ad-free versions of the social networks as a way to comply with the bloc’s data privacy rules

    www.theguardian.com Facebook and Instagram users in Europe can pay for ad-free versions

    Charges of €12.99 a month smartphone users for and €9.99 for desktop introduced to comply with EU data privacy rules

    Facebook and Instagram users in Europe can pay for ad-free versions

    Awful to see our personal privacy and social lives being ransomed like this. €10 seems like a price gouge for a social media site, and I'm even seeing a price tag of 150SEK (~€15) In Sweden.

    53

    test post please ignore

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