Meltdown and Spectre - hardware security flaws that mean all CPUs will need replacing Page 2

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  • Dgzter 3 Jan 2018 16:05:52 1,594 posts
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    :)
  • Frogofdoom 3 Jan 2018 16:09:39 6,528 posts
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    Yeah its a fucking disaster for my job as a systems builder. Have potentially 1000's of pissed off customers waiting to go ballistic. It was bad enough with the embedded processors last year. If it hits virtualization at the potential 30% then ouch.
  • spindizzy 3 Jan 2018 16:32:36 7,717 posts
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    Holy moly. This could be horrendous for us... Next Monday will be fun. :-(
  • b0rk 3 Jan 2018 16:51:55 7,523 posts
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    Forcefully Unmap Complete Kernel With Interrupt Trampolines
  • Fake_Blood 3 Jan 2018 17:05:44 8,051 posts
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    Hmm, sorry for you guys in the industry, but the silver lining for us gamers might be minimal impact and reduced cpu prices/ cheap second hand cpus?
  • Phattso 3 Jan 2018 17:10:43 22,280 posts
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    nickthegun wrote:
    AWS powers half the internet and Azure takes care of the rest of it. Amazon must be losing their minds.
    We run our live (financial) service on AWS, and have just approved upping the capacity as/when the degradation becomes apparent on the platform. Will be interesting to see who ends up footing that extra expense!
  • JamboWayOh 3 Jan 2018 17:14:17 4,505 posts
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    Anyone know what the Intel share price is?
  • Dirtbox 3 Jan 2018 17:16:34 89,645 posts
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    JamboWayOh wrote:
    Anyone know what the Intel share price is?
    Hah, fuck. Google it and check out that graph.
  • JamboWayOh 3 Jan 2018 17:23:12 4,505 posts
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    Jesus. Just seen it. AMD share price has surged in response.
  • Jono62 3 Jan 2018 17:25:11 18,653 posts
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    Wow, it's lucky the CEO had the foresight to sell his shares before this tumble.
  • Fake_Blood 3 Jan 2018 17:25:53 8,051 posts
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    Maybe a good time to buy, unless this thing kills the company?
    So I'm I wrong in thinking the industry might get rid of their cpus, pushing prices down?
    Although I guess server cpus ain't good for gaming?
  • mothercruncher 3 Jan 2018 17:26:38 14,343 posts
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    I hope he bought shares in AMD with the profit he made.
  • Fab4 3 Jan 2018 17:41:23 8,225 posts
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    I've read that it also impacts on ARM processors, but the full story, or how bad it is, isn't yet known. I'm currently working on a product that has an Intel chip at its heart, and its fucked if it has that much of a performance hit.

    Edited by Fab4 at 17:57:20 03-01-2018
  • null 3 Jan 2018 17:44:22 706 posts
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    oh no I might have to upgrade my 5.5 year old cpu
  • mal 3 Jan 2018 17:45:52 28,818 posts
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    b0rk wrote:
    Forcefully Unmap Complete Kernel With Interrupt Trampolines
    Best acronym for a while that one.

    I doubt this will affect ARM processors; I don't think they do the same level of speculative execution that modern intel chips do. Until recently they didn't do any at all, so I doubt they're quite the level of Intel who've been doing multilevel branch prediction since the Pentium 4 I think.
  • Dirtbox 3 Jan 2018 17:51:26 89,645 posts
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    I'm going back to bed, maybe this will all get straightened out in time for supper.
  • Captain_Toad 3 Jan 2018 17:54:40 403 posts
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    Was reading about this last night when I was a bit sozzled. Decided it was drink fuelling mad thoughts and it couldn't possibly be true. The cold light of a sober day shows that my 3770k is about to get old before its time.
  • mal 3 Jan 2018 18:01:40 28,818 posts
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    Rumours are that there is an impact on the newer 64-bit ARM processors. Makes sense as they got rid of a lot of the intrinsic conditional logic that meant there was much less benefit from better branch prediction.

    Edit: It may be worth remembering that at the moment this is being thought of as an exploit to kernel address space randominsation. We've only had that at all for a couple of years. For the time being at least this seems to require high-end NSA/GCHQ commitments to exploit successfully. Sooner or later some black hat will come up with an exploit for this though and then the game is on.

    Edited by mal at 18:05:36 03-01-2018
  • Lukus 3 Jan 2018 18:06:17 20,981 posts
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    Excuse me
  • Fab4 3 Jan 2018 18:08:00 8,225 posts
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    I thought I saw a proof of concept posted on Twitter
  • sport 3 Jan 2018 18:14:04 14,089 posts
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    Have they tried rebooting?
  • DrStrangelove 3 Jan 2018 18:30:22 11,652 posts
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    Alt-ctrl-del
  • Technoishmatt 3 Jan 2018 18:42:42 2,216 posts
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    Will this force people over to Windows 10? Will they patch 7?
  • Frogofdoom 3 Jan 2018 18:44:23 6,528 posts
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    Its urgent enough that they may patch all versions. Intel will probably paying them a lot of money to do so.
  • Your-Mother 3 Jan 2018 18:46:25 903 posts
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    nickthegun wrote:
    Rogueywon wrote:
    @JamboWayOh Even if that's true, what will count against him in this case will be that a lot of the people screaming for his head will be even richer white guys (Intel shareholders, plus those of all of Intel's major business and Government customers, all of whom are going to get hit by this).

    I would imagine that the percentage of companies and governments that this will effect will be in the high 90s.

    AWS powers half the internet and Azure takes care of the rest of it. Amazon must be losing their minds.
    Microsoft are patching Azure literally the same day we're going live with a sizeable O365/Azure deployment. Fun times ahead for us.
  • Rogueywon Most Generous Forumite, 2016 3 Jan 2018 18:49:07 2,435 posts
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    Tom's Hardware, who are generally worth listening to, have a relatively calm and optimistic reaction to the news. It's by no means certain that they're correct, and I think its point on the absence of an Intel share-price plunge might be premature, but it's a useful counter-point to some of the other coverage.
  • mal 3 Jan 2018 18:53:21 28,818 posts
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    Rogueywon wrote:
    @THFourteen Indeed, though gaming isn't the only thing I use my PC for. But I note those benchmarks are all Linux-based, where kernel patches already exist.
    Patches may exist, but no kernel's been released yet that I can see. 4.14.10 is still the latest release and that came out on 29 Dec before this kicked off as far as I've heard. And I can't see anything in 4.15rc5 that actively targets this.

    Edit: Ah, that Tom's Hardware suggests the fix is in the upcoming 2.15rc6. Those release candidates are the kind of beta releases of beta releases, so I'd kind of assume most benchmarks are running on public releases still.

    Edited by mal at 18:58:22 03-01-2018
  • Dirtbox 3 Jan 2018 18:53:33 89,645 posts
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    Yeah, I don't think it's anything worth losing our minds over. Yet.

    God willing.
  • b0rk 3 Jan 2018 18:54:08 7,523 posts
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    also

    https://www.computerbase.de/2018-01/intel-cpu-pti-sicherheitsluecke/

    Things seem not terrible, at least for home users. Ok the panic is starting to subside.

    i wub u 2600K
  • Dirtbox 3 Jan 2018 18:57:32 89,645 posts
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    Casuals can just leave the thread. Thanks.
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