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Google Makes Disclosure About The CPU Vulnerability Affecting Intel / AMD / ARM

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  • raptormissle
    replied
    Originally posted by davidbepo View Post
    so... either amd or google is lying...
    in this case i prefer to believe amd
    edit: there is a third option. that the only amd processors affected are the arm ones (opteron a1100)
    What a dimwitted thing to say considering Google found all of the bugs. As for believing AMD over Google, that's so hilarious I can't stop laughing.

    Leave a comment:


  • aht0
    replied
    Theo de Raadt more or less predicted this Meltdown-possibility decade a go..
    https://marc.info/?l=openbsd-misc&m=118296441702631&w=2

    .. some of these bugs don't just
    cause development/debugging problems, but will *ASSUREDLY* be exploitable from userland code.

    Leave a comment:


  • Anty
    replied
    Ok, thx for checking.
    I saw results from intel microcode BIOS patch - results are scarry...

    Leave a comment:


  • Michael
    replied
    Originally posted by Anty View Post

    Any ETA ?
    Doesn't appear to noticeably affect performance in the configuration where I got the new firmware working... And when talking to AMD they say it doesn't actually disable branch prediction, but still waiting for further clarification. So for now lost interest/resources in pursuing it more.

    Leave a comment:


  • Anty
    replied
    Originally posted by Michael View Post

    I'm running some benchmarks.
    Any ETA ?

    Leave a comment:


  • dungeon
    replied
    Originally posted by fuzz View Post
    Likely quick fix for Spectre Variant One, which is mentioned that needs fix They say negligible performance hit expected, how much that really is is yet to be seen

    Intel also released new microcodes for that spectre, Firefox also need to release something against Spectre js... it is better for average Joe to sleep a week or two until they patch all this.

    Maybe around 10th january to retest all this, since 9th was planed to be a day but shit leaked globally a bit earler
    Last edited by dungeon; 01-04-2018, 07:58 PM.

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  • Michael
    replied
    Originally posted by arakan94 View Post

    "This new firmware disables branch prediction" - That's super harsh.. Any word on performance hit?
    I'm running some benchmarks.

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  • arakan94
    replied
    Originally posted by fuzz View Post
    "This new firmware disables branch prediction" - That's super harsh.. Any word on performance hit?

    Leave a comment:


  • fuzz
    replied
    Spectre does affect Ryzen.

    https://lists.opensuse.org/opensuse-.../msg00004.html

    Leave a comment:


  • ObiWan
    replied
    As additional info on AMDs info
    Variant 1: Spectre
    Variant 2: Spectre
    Variant 3: Meltdown

    Leave a comment:

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