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https://it.slashdot.org/story/18/01/02/221254/kernel-memory-leaking-intel-processor-design-flaw-forces-linux-windows-redesign

tl;dr: Intel processor architecture flaw allows unprivileged code to read any memory it wants, forcing true kernel memory isolation which is a huge hit to performance.
Probably a 5-30% performance hit to pretty much everything. AMD processors appear to be unaffected.

Intel's CEO just sold a bunch of his stock. Things are not looking good. I'm ticked because I just built an Intel machine. Overall, really irritating.


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is this every intel system, no matter who old?


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If reading right then the OS's will be having updates to kernels to cover that. PC should be okay since it was Xp Media Center Edition 2005. Laptop maybe not. But if get updates pushed out by Debian should be okay. Would thing about putting AMD in them but with all probably being changed out would probably come out cheaper buying new rigs?


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Georgiaboy wrote:

...Would thing about putting AMD in them...

As far as I know, and I may not be right, that would mean a new motherboard. I believe the sockets are different.

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yep. Like I said, probably cheaper for new rig than going through all the hassles of buying new mother board and then other stuff.


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Phoronix benchmarks of the performance impact on Linux.
https://www.phoronix.com/scan.php?page=article&item=linux-more-x86pti&num=1


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Interesting article. So, AMD is affected also then.


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Georgiaboy wrote:

Interesting article. So, AMD is affected also then.

But only software wise... the hardware isn't affected and a kernel patch would remediate the issue.


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Got this in Stable this morning.


The following NEW packages will be installed:
  linux-image-4.9.0-5-686-pae
The following packages will be upgraded:
  linux-image-686-pae

Haven't seen anything for testing yet. Don't know if that's a fix for what's going on or not.


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I had a large update this morning, both Debian and Mozilla only thing I cought was security for mozilla and from Debian testing kernal and security. Went so fast could not read but little of it.