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Discussion in 'Linux Compatibility and Software' started by Papusan, Oct 11, 2021.

  1. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    If the thread title could be improved, then please add in suggestions. Thanks:) @jclausius +++

    :vbbiggrin::vbbiggrin::vbbiggrin::vbbiggrin::vbbiggrin: :vbbiggrin:
    upload_2021-10-12_3-32-20.jpeg

    Linux Developers Push Urgent Patches To Fix 'Yet Another Hardware Trainwreck' hothardware.com | Monday, October 11, 2021

    Accurate timers are critical to the function of the low-level parts of the underlying code that drives the user-facing software we actually use in our daily lives. Fortunately, x86-64 PCs include numerous timers. Actually selecting which of those timers to use in a given scenario, however, can be a headache due to bugs, design flaws or implementation issues.

    In essence, when modern Intel chips hit the PC10 idle state, the HPET stops working, even if the operating system is currently using it. This, obviously, results in all kinds of problems, so the solution is to fall back to older and less precise timers, like PMTIMER.
     
  2. jclausius

    jclausius Notebook Virtuoso

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    Yes. Timers are extremely important. And the hardware will let you know if you can support a Real Time Operating System (RTOS). I know with Win32's API they do expose different timers based on what you're wanting the timer to do and how accurate it needs to be (think video editing vs. a by-the second alarm clock - each will have different accuracy).

    I'll have to dig into the article to see where programmers are becoming confused, but it wouldn't be surprising that people become confused by which hardware clock is used for what. I wonder if AMD chips have the same issues with timers??

     
  3. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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  4. Vasudev

    Vasudev Notebook Nobel Laureate

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    Was configuring Thinkpad t and p series with ryzen pro and was shocked to see P series being charged extra 500$ with same Ryzen pro 5850U 4k screen etc.. and worse part is SE/SEV and other virtualization techs are absent from P series workstation class laptops and only present on T series.
     
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  5. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    Vulnerability in the Linux kernel borncity.de November 12, 2021

    [​IMG]
    In the kernel of all major Linux distributions, there is a vulnerability that researchers Sentinel Labs few days ago have been made public. A TIPC module in all common Linux distributions can be exploited by heap overflow attacks, which can lead to a system takeover. Attackers can thereby compromise the entire system. A patch is available for most distributions.

    Further technical details on the vulnerability and information on how to fix the problem can be found in the SentinelLabs report .
     
  6. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    Windows 11 Outperforms Linux With Alder Lake CPUs, Scheduler to Blame tomshardware.com | Today

    A scheduling problem
    A report from Phoronix has revealed that Intel's Alder Lake CPUs perform much better in a Windows 11 environment than with Linux-based operating systems. The problem is related to issues with Linux's cluster scheduler, which isn't optimized for Alder Lake's hybrid architecture. That means that Alder Lake, which are now the new Best CPUs for gaming, are better suited for Windows 11 than Linux. That's somewhat surprising given that Linux typically outperforms all flavors of Windows.

    According to Phoronix, there's no current workaround to this problem (except for disabling the E cores entirely) for Linux. Hopefully, Linux 5.16 will introduce better compatibility with Alder Lake, but there's no guarantee when or if those changes will arrive.
     
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  7. etern4l

    etern4l Notebook Virtuoso

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    Will there be any ecores in Xeons?
     
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  8. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    Nope. But you'll instead get HBM2e memory stacks. The E-cores in mainstream is forced into the LGA chips because it's made for Jokebooks. Isn't it a great idea make tech in the Cpu meant to increase battery run time for desktops?:confused:

    Intel Xeon Sapphire Rapids feature up to 64GB HBM2e memory
     
  9. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

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    Yes I agree. Using baby-girl smartphone cores in a desktop processor is really stupid even if it works fine. I think it's stupid to do in turdbooks as well, but that's something that I'm indifferent about at this point because it doesn't affect me and probably never will... GIGO.

    In spite of putting on a good show for everyone attending the circus, functioning correctly doesn't automatically make something a great idea. Just think how much better a 12900K CPU would perform if it had 12 hyperthreaded cores and none of the wuss-baby smartphone chips. This is a compromise in a space where compromise is neither needed nor welcomed. More watts = moar performance. Less watts = castrated garbage. They need to leave the gate open so it can run wild and free.
     
    Last edited: Nov 18, 2021
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  10. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    New Linux malware hides in cron jobs with invalid dates bleepingcomputer.com | November 25, 2021

    Security researchers have discovered a new remote access trojan (RAT) for Linux that keeps an almost invisible profile by hiding in tasks scheduled for execution on a non-existent day, February 31st.

    Dubbed CronRAT, the malware is currently targeting web stores and enables attackers to steal credit card data by deploying online payment skimmers on Linux servers.

    Characterized by both ingenuity and sophistication, as far as malware for online stores is concerned, CronRAT is undetected by many antivirus engines.
     
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