Phoronix: Clear Linux Rolls Out KPTI Page Isolation & Retpoline Support
Intel's own Clear Linux distribution has now been updated with protection for addressing the Spectre and Meltdown vulnerabilities disclosed last week...
http://www.phoronix.com/scan.php?pag...Retpoline-KPTI
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Clear Linux Rolls Out KPTI Page Isolation & Retpoline Support
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Clear Linux Rolls Out KPTI Page Isolation & Retpoline Support
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Originally posted by Vistaus View PostAMD is not so clever either. They provided the wrong documentation to Microsoft, which resulted in bootloops: https://www.ghacks.net/2018/01/09/mi...t-amd-devices/
Not that I think AMD is innocent, afaik their chipsets are still made/designed by Asmedia so I'm sure they are full of weird quirks not even the designers are fully aware of.
Although I don't know what MS means with "chipsets" in their statement.
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Originally posted by Vistaus View PostAMD is not so clever either. They provided the wrong documentation to Microsoft, which resulted in bootloops: https://www.ghacks.net/2018/01/09/mi...t-amd-devices/
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Originally posted by Jumbotron View Post
Yet those architecture changes to speed things up are now a threat vector and the changes both software, firmware and architecturally negate a lot of those speed ups. Once again....AMD at least for Meltdown and Ryzen made architecture choices that hurt their performance against Intel but they saw the potential threat vector and decided against doing that just to score higher in perf or for marketing purposes. Intel...well....
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Originally posted by uid313 View Postx86 is beginning to feel like a legacy shit architecture.
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Originally posted by unixfan2001 View PostWhat's your definition of a "high performance CPU"?
Old Pentium 4 CPUs are affected. I'd hardly call these high performance. They weren't even high performance when they came out.
Originally posted by unixfan2001 View PostRISC-V does have an implementation. Namely, RISC-V Rocket. That one was not affected by Spectre or Meltdown.
Originally posted by unixfan2001 View PostDoesn't matter that there aren't commercial implementations, yet. Clearly, the architecture itself can be considered a fairly modern ISA and was not affected.
Don't get me wrong RISC-V is neat as hell and on a great track towards being a high performance open CPU but it is by no means that right now and not being affected by the current vuln because they hadn't designed the feature yet is in no way a win for it to to be touting around.Last edited by zamadatix; 01-09-2018, 09:08 AM.
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Originally posted by zamadatix View Post
Meanwhile the 2024 mustang hasn't had an engine failure yet!*
*Please disregard that the engine hasn't been designed or built.
But seriously, the only reason RISC-V wasn't affected was they haven't released a high performance CPU yet and only high performance CPUs were affected. It has nothing to do with the ISA being new or open source, simply not complete yet.
Old Pentium 4 CPUs are affected. I'd hardly call these high performance. They weren't even high performance when they came out.
Merely an alternative to electric heating devices.
RISC-V does have an implementation. Namely, RISC-V Rocket. That one was not affected by Spectre or Meltdown.
Doesn't matter that there aren't commercial implementations, yet. Clearly, the architecture itself can be considered a fairly modern ISA and was not affected.
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At this rate it won't be long before my Amiga's are outperforming recent platforms.
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Originally posted by uid313 View Postx86 is beginning to feel like a legacy shit architecture.
But seriously, when you've extended an architecture as far as x86, an architecture originally designed in the mid 1970s, has been extended you're more or less guaranteed to see all kinds of "interesting" side effects of this.
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