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Linux and Linux Foundation: AMD, IBM and Urban Computing Foundation

Submitted by Roy Schestowitz on Tuesday 7th of May 2019 05:31:00 PM Filed under
Linux
Hardware
  • Some AMD CPUs Might Lose RdRand Randomness Following Suspend/Resume

    Systemd developers are sounding the alarms that some AMD processors might lose randomness (yielding non-random data) via the RdRand instruction following a suspend/resume alarm. However, initial indications don't appear for this to be some glaring widespread issue and might be limited to the older AMD CPUs and/or BIOS/motherboard combination.

    Systemd lead developer Lennart Poettering of Red Hat tweeted today, "So AMD CPUs implement an RDRAND operation that doesn't actually return randomness (after your first suspend/resume cycle that is)."

  • Linux 5.2 For s390 Finally Adds Support For KASLR

    The IBM System Z kernel code with the now in-development Linux 5.2 kernel is finally supporting kernel address space layout randomization (KASLR).

    KASLR as the current Linux address space layout randomization implementation was merged a half-decade ago for randomizing the kernel code's position in RAM at boot time. Now finally with Linux 5.2 due out in July 2019, the s390 architecture supports KASLR. By placing the kernel code at a random position in RAM, it makes various attacks on the system more difficult due to not being able to reliably jump to a given position for an intended exploit.

  • RadeonSI Adds Workaround To Deal With Incorrect Rendering In Counter-Strike: GO

    For those enjoying Valve's Counter-Strike: Global Offensive on the RadeonSI Gallium3D driver, a workaround has been added to Mesa Git that is also marked for back-porting to the Mesa 19.0/19.1 series to address incorrect rendering issues. 

    The primary issue appears to be black patterns and other malformed rendering when using the scope on select rifles as opposed to being some very pressing issue. The original bug report dates back to March 2017 but has now been resolved.

  • AMD EPYC + Radeon Instrinct To Power "Frontier" 1.5 Exaflop Supercomputer

    AMD and Cray announced today they won a contract to provide the US Department of Energy with the hardware to the "Frontier" supercomputer that is expected to go online in 2021 and deliver 1.5 exaflops of compute power. 

    The US DoE Frontier supercomputer is the fastest planned supercomputer right now and will be built around custom EPYC CPUs and Radeon Instinct graphics processors. There will be four Radeon GPUs per EPYC CPU and feature a custom Infinity Fabric implementation and this supercomputer is built around Cray's Shasta architecture. 

  • Linux Foundation Supports Community Development to Improve Mobility, Transportation, Safety and Infrastructure with New Urban Computing Foundation

    The Linux Foundation, the nonprofit organization enabling mass innovation through open source, today announced the formation of the Urban Computing Foundation to accelerate open source software that improves mobility, safety, road infrastructure, traffic congestion and energy consumption in connected cities. Initial contributors include developers from Uber, Facebook, Google, HERE Technologies, IBM, Interline Technologies, Senseable City Labs, StreetCred Labs and University of California San Diego (UCSD).

    As cities and transportation networks evolve into ever-more complicated systems, urban computing is emerging as an important field to bridge the divide between engineering, visualization and traditional transportation systems analysis. However, these advancements are dependent on compatibility among many technologies across different public and private organizations. Urban Computing Foundation will provide a neutral forum for this critical work, including adaption of geospatial and temporal machine learning techniques and urban environments and simulation methodologies for modeling and predicting city-wide phenomena. To contribute to this work, please visit the Urban Computing Foundation website.

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