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The Intel CEO filed his planned stock sale on October 30. Wonder if this is going to become an issue for him https://www.sec.gov/Archives/edgar/data/50863/000112760217033679/xslF345X03/form4.xml
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Jan 4, 2018 14:58
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Cao Ni Ma posted:Im on a 4790k that I bought right before skylake started showing up because RAM and motherboards were expensive and the gains werent looking to be that much. I swear to god if the performance hit because of these fixes are high Ill ill buy a new motherboard cpu and ram Haswell should have working PCID (at least for the Linux fix) according to https://patchwork.kernel.org/patch/10035481/ quote:PCIDs are generally available on Sandybridge and newer CPUs. However,
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Jan 4, 2018 15:15
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According to this http://www.businessinsider.com/intel-ceo-krzanich-sold-shares-after-company-was-informed-of-chip-flaw-2018-1 Intel knew about the bug since June. Not only did their CEO dump 24 million dollars in stock after knowing about the bug, he sold off everything except for the bare minimum he’s required to keep. I’ve also read somewhere that although Intel doesn’t have to disclose specific details, they are obligated to disclose to investors about possible problems coming down the line that might hurt the numbers. They didn’t, despite knowing about this since June.
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Jan 4, 2018 15:17
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Linus laying a burn on Intel https://lkml.org/lkml/2018/1/3/797 quote:Why is this all done without any configuration options?
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Jan 4, 2018 15:24
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Oh man, I’m going to be upset if my Broadwell mobile desktop starts to suck eggs. I wanted to keep the thing holding together for another year or so, but if I can’t get my modeling work done 
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Jan 4, 2018 15:27
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This totally was insider trading and there will totally nothing happen probably. I have no idea about such things and I won't act like I do but I can't imagine that a guy like that would risk such a move without being absolutely sure he can't be gutted for it. I mean - would you?
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Jan 4, 2018 15:28
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In that insider trading cases, even when hilariously blatant, are basically never prosecuted, there's really no reason for him not to make moves like that if it'll make him money. It's the benefit of being fabulously rich: a lot of rules just don't apply anymore.
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Jan 4, 2018 15:39
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Try writing to your representatives about Intel's CEO just for the fun of it.
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Jan 4, 2018 15:48
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Fame Douglas posted:The Intel CEO filed his planned stock sale on October 30. Wonder if this is going to become an issue for him https://www.sec.gov/Archives/edgar/data/50863/000112760217033679/xslF345X03/form4.xml Answer: It should be, but won't be vvv Yay! HalloKitty fucked around with this message at 15:57 on Jan 4, 2018 |
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Jan 4, 2018 15:53
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A workaround for Spectre is landing in two of the major C/C++ compilers soon: https://support.google.com/faqs/answer/7625886 They're basically breaking branch prediction on purpose so  performance.
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Jan 4, 2018 15:54
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repiv posted:It gets better! This computer used to run antivirus before I switched back to Defender a year or so ago. Is there a way to check whether the update installed correctly? edit - I have KB4056892 installed, if that helps. Also still rocking an old 2500k, so time to wait for benchmarks I guess.
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Jan 4, 2018 16:07
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Boris Galerkin posted:According to this CEOs often sell everything they have as soon as possible because they get rights to buy stock cheaper than the market price, so it's free money. FallenGod posted:This computer used to run antivirus before I switched back to Defender a year or so ago. Is there a way to check whether the update installed correctly? edit - I have KB4056892 installed, if that helps. That KB update is the Windows fix, even if MS changelog is vague about it. cinci zoo sniper fucked around with this message at 16:14 on Jan 4, 2018 |
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Jan 4, 2018 16:11
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DrDork posted:In that insider trading cases, even when hilariously blatant, are basically never prosecuted, there's really no reason for him not to make moves like that if it'll make him money. the SEC loves prosecuting insider trading cases, actually
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Jan 4, 2018 18:08
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evilweasel posted:the SEC loves prosecuting insider trading cases, actually They love threatening to. Actually going through with it seems only to be semi-regularly done if it's people selling/trading/gifting timing recommendations for people to purchase stocks before a big reveal or price jump. There's precious little action taken on C-suite employees dumping everything right before the poo poo hits the fan.
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Jan 4, 2018 18:23
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Trip report: my Windows had updated, I hadn't even noticed. So the actual performance difference in games at least is indeed negligible. However, Intel's behaviour is beyond scummy. According to that Google white paper they were informed in July, and kept selling and launching processors without any loving word of what was going on to companies who will now take a MASSIVE hit as they have to replace their entire server hardware or whatever.
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Jan 4, 2018 18:24
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Der Shovel posted:Trip report: my Windows had updated, I hadn't even noticed. So the actual performance difference in games at least is indeed negligible. It's the launching processors thing that loving sucks the most.
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Jan 4, 2018 18:27
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I’m going to try and return my pentium 4 to circuit city, wish me luck!
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Jan 4, 2018 18:28
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They will have to replace their server hardware, long term, because of Spectre not Meltdown. You can address Meltdown via software, although with a potential performance hit depending on your workload. But nobody really knows how to address Spectre yet, and it impacts AMD, Qualcomm, and everyone else that makes Big Iron too (and has been launching new products since July)
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Jan 4, 2018 18:29
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Putting the brakes on a new chip launch would cost them far more than just going through with it and waiting for the patches.
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Jan 4, 2018 18:30
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Shumagorath posted:Putting the brakes on a new chip launch would cost them far more than just going through with it and waiting for the patches. Especially when your warranty explicitly doesn't cover that sort of thing, so you're only on the hook with companies that have arranged for a more generous contract--everyone else just has to deal with it. And if Spectre impacts both Intel and AMD, it's not like they even have to worry much about the bad blood because there's nowhere safe to jump ship to--everyone just has to deal with it.
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Jan 4, 2018 18:37
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So how do we use this to exploit the new video game consoles
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Jan 4, 2018 19:15
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GRINDCORE MEGGIDO posted:It's the launching processors thing that loving sucks the most. Seriously. That poo poo should literally be illegal, when they fully well knew there was a large problem with their processors.
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Jan 4, 2018 19:19
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They can’t just stop the launch and fix everything; it’s literally an architectural redesign with the revalidation of the entire chip. They banked on SW mitigation in the interim...hosed up, yeah, but I can see their logic.
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Jan 4, 2018 19:22
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2017: Intel needs to release faster processors with more cores. 2018: Intel shouldn’t have launched more processors. 
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Jan 4, 2018 19:23
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movax posted:They can’t just stop the launch and fix everything; it’s literally an architectural redesign with the revalidation of the entire chip. They banked on SW mitigation in the interim...hosed up, yeah, but I can see their logic. yeah being as the spectre stuff is going to take literally years to sort out i can't blame them for this specifically
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Jan 4, 2018 19:33
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Given how far back this problem goes in the Pentium DNA, I'd say get ready for a few more vulnerabilities facilitated by optimizations to x86 and ARM from back before anyone cared about security.
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Jan 4, 2018 20:23
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Don Lapre posted:So how do we use this to exploit the new video game consoles Doesn't AMD power the Bone and PS4?
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Jan 4, 2018 20:47
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Shumagorath posted:Given how far back this problem goes in the Pentium DNA, I'd say get ready for a few more vulnerabilities facilitated by optimizations to x86 and ARM from back before anyone cared about security. https://danluu.com/cpu-bugs/ a good article (i'm tired af and can't remember whether i saw this posted on twitter or here so sorry if repost)
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Jan 4, 2018 20:48
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s.i.r.e. posted:Doesn't AMD power the Bone and PS4? Yes, but they use weaktit AMD Jaguar netbook CPU cores. Hopefully the PS5 and XboneX2 will use Ryzen+ based CPUs.
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Jan 4, 2018 22:19
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I got KB4056892 but for some reason the Meltdown mitigation didn't enable until I flashed my BIOS to a recently released update. To check if the mitigation is active: https://support.microsoft.com/en-us/help/4073119/windows-client-guidance-for-it-pros-to-protect-against-speculative-exe edit: Oh it's because you need new microcode. That should solve itself when Microsoft pushes the new microcode via Windows Update then, but in the short term you might need a BIOS update. repiv fucked around with this message at 22:35 on Jan 4, 2018 |
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Jan 4, 2018 22:25
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ElehemEare posted:2017: Intel needs to release faster processors with more cores. Without commenting on whether Intel should have launched or not, this is a lovely, disingenuous representation of what people are saying.
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Jan 4, 2018 22:29
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They would have been kind of stuck not launching Coffeelake because of a vulnerability all their processors are prone too. Just imagine how that would have gone down for AMD's sales.
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Jan 4, 2018 22:33
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repiv posted:I got KB4056892 but for some reason the Meltdown mitigation didn't enable until I flashed my BIOS to a recently released update. Hopefully the relevant fixes can be applied by the OS. Lots of “abandoned” BIOS out there that are not going to be patched for consumers.
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Jan 4, 2018 22:38
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Mine upgraded straight away - full Meltdown fix, but not Spectre fix. This was with today's Windows 10 update, on a b-tier laptop from mid-2014.
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Jan 4, 2018 22:42
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cinci zoo sniper posted:Mine upgraded straight away - full Meltdown fix, but not Spectre fix. This was with today's Windows 10 update, on a b-tier laptop from mid-2014. Mirrors what I saw with my 8700k at home. Hopefully a BIOS update will fix more spectre stuff
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Jan 4, 2018 22:44
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HardwareUnboxed has benched the Meltdown patch for Windows. https://www.techspot.com/article/1554-meltdown-flaw-cpu-performance-windows/
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Jan 4, 2018 22:48
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Together with the fact that most average user computers are never really taxed by their users to begin with, it basically means nothing for performance then. These are still two ugly exploits, It's gonna be interesting to see what spectre will bring in the future.
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Jan 4, 2018 22:53
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Paul MaudDib posted:HardwareUnboxed has benched the Meltdown patch for Windows.  As expected, most desktop users won't notice any difference. It will be interesting to see more productivity and server benchmarks though.
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Jan 4, 2018 22:54
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That said, has anyone benchmarked Sandy Bridge or Ivy Bridge yet? Those don't support PCID optimizations so they're running the slower version of the mitigation.
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Jan 4, 2018 23:04
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repiv posted:That said, has anyone benchmarked Sandy Bridge or Ivy Bridge yet? Those don't support PCID optimizations so they're running the slower version of the mitigation. There's a comment from Steve on the Youtube version of this: quote:Update: I've also tested the Sandy Bridge 2600K and haven't found anything different. The 4K performance is noticeably down but other than that everything else is much the same. I won't make another video till we get the BIOS updates.
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Jan 4, 2018 23:21
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