[Info-vax] Intel junk...Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign

Alan Browne bitbucket at blackhole.com
Fri Jan 5 09:02:52 EST 2018


On 2018-01-04 07:56, Designed By India H1B Engineers wrote:
> Performance hits loom, other OSes need fixes

Stunning.  As someone else mentioned the electricity hit alone could be 
enormous.  Not just in data centres but across all intel users.

Class action suit against intel I think.  This is on the level of the 
FDIV bug of yore.  Worse in some sense.

Must be full cigar time at AMD...

Curiously Apple claim that their mitigation of this has no measurable 
effect on one aspect (CVE-2017-5754 or "rogue data cache load" - aka 
Meltdown) of the flaw (using 3rd party benchmarking s/w); and "only" 
2.5% slowdown in one of three benchmarks for the other flaws ( 
CVE-2017-5753 or "bounds check bypass," and CVE-2017-5715 or "branch 
target injection.").
https://support.apple.com/en-us/HT208394

This makes me wonder if the article's claims of 5 - 30% slowdown (post 
OS fix [Windows, Linux]) are exaggerated or if Apple's fix is either 
miraculous or incomplete.

-- 
“When it is all said and done, there are approximately 94 million
  full-time workers in private industry paying taxes to support 102
  million non-workers and 21 million government workers.
  In what world does this represent a strong job market?”
.Jim Quinn



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