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    Tuesday, January 28, 2020

    Home Unlabelled Hardware support: CacheOut: Leaking Data on Intel CPUs via Cache Evictions

    Hardware support: CacheOut: Leaking Data on Intel CPUs via Cache Evictions

    January 28, 2020

    Hardware support: CacheOut: Leaking Data on Intel CPUs via Cache Evictions

    CacheOut: Leaking Data on Intel CPUs via Cache Evictions

    Posted: 27 Jan 2020 11:52 AM PST

    European Processor Initiative Readies Prototype

    Posted: 27 Jan 2020 10:35 PM PST

    Cisco Appoints AMD President and CEO Dr. Lisa T. Su to Board of Directors

    Posted: 27 Jan 2020 01:43 PM PST

    (Anandtech) The Corsair DDR4-5000 Vengeance LPX Review: Super-Binned, Super Exclusive

    Posted: 27 Jan 2020 05:56 PM PST

    Intel still not done with Zombieload (releases the third patch for previously undisclosed flaws)

    Posted: 28 Jan 2020 12:37 AM PST

    https://www.engadget.com/2020/01/27/intel-third-mds-patch/

    ​

    For the third time in less than a year, Intel has disclosed a new set of vulnerabilities related to the speculative functionality of its processors. On Monday, the company said it will issue a software update "in the coming weeks" that will fix two more microarchitectural data sampling (MDS) or Zombieload flaws. This latest update comes after the company released two separate patches in May and November of last year.

    Compared to the MDS flaws Intel addressed in those two previous patches, these latest ones have a couple of limitations. To start, one of the vulnerabilities, L1DES, doesn't work on Intel's more recent chips. Moreover, a hacker can't execute the attack using a web browser. Intel also says it's "not aware" of anyone taking advantage of the flaws outside of the lab.

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    Researchers weren't happy at all, when Intel released the first patches, it's becoming clear why:

    However, like when the company issued its second MDS patch in November, security researchers are criticizing Intel for its piecemeal approach. "We spent months trying to convince Intel that leaks from L1D evictions were possible and needed to be addressed," the international team of computer scientists that discovered the flaw wrote on their website. In an addendum to their original paper, there's a sense of exasperation with the company. "We reiterate that RIDL-class vulnerabilities are non-trivial to fix or mitigate, and current 'spot' mitigation strategies for resolving these issues are questionable," the researchers write.

    submitted by /u/Gideonic
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    Linux 5.5 Released With Many Hardware Support Improvements

    Posted: 27 Jan 2020 04:04 AM PST

    [Gamers Nexus] Worst & Best PC Cases for 2020 So Far: Mesh Trending & CES Round-Up

    Posted: 28 Jan 2020 12:18 AM PST

    Chris Lattner (LLVM, Clang, Swift) joins SiFive as SVP of Platform Engineering

    Posted: 27 Jan 2020 11:55 PM PST

    Intel Optane Refresh Could Slip to 2021

    Posted: 27 Jan 2020 03:08 PM PST

    GPU Necromancy: R9 290X Matrix revived by amputation of Vcore VRM phases

    Posted: 27 Jan 2020 01:44 PM PST

    Eve Spectrum: First Community Developed Monitor Unveiled

    Posted: 27 Jan 2020 08:07 AM PST

    Intel to return to 2-2.5 year process cadence

    Posted: 27 Jan 2020 03:07 AM PST

    What is a memory port - how are A1, A2, A3 latched from the main address bus?

    Posted: 28 Jan 2020 01:35 AM PST

    https://i.imgur.com/35pwzBc.png

    All memories have one or more ports. Each port gives read and/or write access to one memory address. The previous examples were all single-ported memories.

    Multiported memories can access several addresses simultaneously. Figure 5.43 shows a three-ported memory with two read ports and one write port. Port 1 reads the data from address A1 onto the read data output RD1. Port 2 reads the data from address A2 onto RD2. Port 3 writes the data from the write data input WD3 into address A3 on the rising edge of the clock if the write enable WE3 is asserted.

    submitted by /u/veekm
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    From a non professional, non server application standpoint, are there any meaningful benefits to using a dedicated (and / or higher quality) network adapter card compared to the network interfaces which come integrated with today's motherboards?

    Posted: 27 Jan 2020 09:11 AM PST

    I've been wondering whether it would make sense to buy a dedicated quality network adapater card, somewhat similar to dedicated soundcards, rather than using the one that comes integrated with my Prime X470 Pro. The OS reports it to be a "Intel(R) I211 Gigabit Network Connection".

    I know that these cards are mostly used for special and server applications such as 10GB+, fibre, multiple connections, things such as wake on LAN or expanded QoS settings.

    I'm not really expecting that a non professional user could get things such as lower latency out of it, maybe negligible CPU time savings because of advanced offloading features, although that shouldn't matter on a 3600X. Is that the answer?

    As for my connection, speedtests report roughly 260 MBit/s down, 43 MBit/s up, 8 ms Ping. I know that's nowhere near to being a problem for the integrated adapter and it does work absolutely fine, I'm just a curious speed freak who's always looking for new ways to optimize stuff and shave a few ms off :)

    I'm sure a few networking experts can expand on this!

    submitted by /u/Lego_ergo_sum
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    Linus Tech Tips - Water Cooled 8K Camera Final Test

    Posted: 27 Jan 2020 10:16 PM PST

    Windows Subsystem For Linux on Arm based Surface Pro X

    Posted: 27 Jan 2020 08:50 AM PST

    Intel Xeon Gold 6252 Benchmarks and Review | ServeTheHome

    Posted: 27 Jan 2020 04:11 AM PST

    Researchers Make Strides in “Spintronics” (Spin Electronics)

    Posted: 27 Jan 2020 04:02 AM PST
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