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Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign | Pe

Submitted by: SINep @ 08:23 PM | Wednesday, January 3, 2018 | (url: https://www.there...)

A fundamental design flaw in Intel's processor chips has forced a significant redesign of the Linux and Windows kernels to defang the chip-level security bug.

Programmers are scrambling to overhaul the open-source Linux kernel's virtual memory system. Meanwhile, Microsoft is expected to publicly introduce the necessary changes to its Windows operating system in an upcoming Patch Tuesday: these changes were seeded to beta testers running fast-ring Windows Insider builds in November and December.

Crucially, these updates to both Linux and Windows will incur a performance hit on Intel products. The effects are still being benchmarked, however we're looking at a ballpark figure of five to 30 per cent slow down, depending on the task and the processor model. More recent Intel chips have features such as PCID to reduce the performance hit. Your mileage may vary.

Best case: 17% slowdown
Worst case: 23% slowdown
The Register (@TheRegister) January 2, 2018

Similar operating systems, such as Apple's 64-bit macOS, will also need to be updated the flaw is in the Intel x86-64 hardware, and it appears a microcode update can't address it. It has to be fixed in software at the OS level, or go buy a new processor without the design blunder.

Details of the vulnerability within Intel's silicon are under wraps: an embargo on the specifics is due to lift early this month, perhaps in time for Microsoft's Patch Tuesday next week. Indeed, patches for the Linux kernel are available for all to see but comments in the source code have been redacted to obfuscate the issue.

However, some details of the flaw have surfaced, and so this is what we know.


Savage 2 Linux Client Available

Submitted by: Got Haggis? @ 09:41 PM | Wednesday, March 26, 2008 | (url: http://savage2.s2...)

S2Games, the developers of Savage, and Savage 2 have made a Linux client for Savage 2 available for download. If you haven't played Savage, it combines team class based FPS combat with some RTS mechanics in a fantasy setting. Think Tribes + Battlezone. Great game, and great that they have made a linux client available.

Google Releases New Android SDK

Submitted by: Zengei @ 10:14 AM | Monday, February 18, 2008 | (url: http://arstechnic...)

Google has released version m5-rc14 of its Android SDK for mobile devices (i.e. smart phones). Android is a relatively open platform based on Linux and is designed to be a consistent platform for use in mobile devices. According to Ars, this version of the still pre-release SDK is a significant improvement over previous versions.

Valve Software seeks Software Engineer to port Windows games to Linux

Submitted by: OtakuMark @ 10:52 AM | Thursday, September 13, 2007 | (url: http://www.valves...)

-Develop an understanding of Valve's Internet business and player community and contribute creative web-focused design solutions to -improve the experience of using Valve's products
-Manage the operation of large clusters of machines running both Windows and Linux in a highly available system.
-Utilize knowledge of networking technologies and their appropriate use in large scale digital distribution systems and gaming platforms.
-Port Windows-based games to the Linux platform.
-Test, document, and maintain large scale networking installations and their assorted protocols
-oversee and implement quality assurance of applications in house and third party games distributed on Steam

Category: PC Gaming | 3 Comments
Tags: linux valve

Valve Hates Linux

Submitted by: Colosus @ 09:28 AM | Monday, July 23, 2007 | (url: http://forums.ste...)

Valve threatens to ban anyone posting on their forums regarding the addition of a Linux client for Steam. Dev nazis from Bellevue, WA. Fear.