Debian Project Warns: Turn off Hyperthreading with Skylake and Kaby Lake (Ubuntu affected)

guru3d.com ^ | 06/26/2017 08:40 AM | Hilbert Hagedoorn

[Ernest_at_the_Beach]

Debian believes all OS affected!

That would be windows and Macs!

A microcode problem of some sort.

[ImJustAnotherOkie]

Some of my reading suggests that it is mainly a laboratory bug not being seen in the wild.

[UCANSEE2]

So now we can use the excuse.... THE COMPUTER MADE A MISTAKE ?

[House Atreides]

The Debian Operating System is free — sometimes you get what you pay for.

[Ernest_at_the_Beach]

OK. good info.Debian developers just released Version 9 so might be super cautious on their part.

But some of the big clouds might be using their kernels although a lot use FreeBSD.

Amazon uses Xen ...so who knows,...

[Axenolith]

Which would be relevant if it weren’t a processor issue...

[Ernest_at_the_Beach]

But the malware on Windows is free....

[ImJustAnotherOkie]

I’ve grown to not believe in accidental bugs anymore with testing software being what it is.

It’s probably some NSA back door accidentally uncovered and we’ll be reading about in a few years.

[Bob434]

how do you tell what processor you have? Mine is a couple years old- 6 or 8 core- can’t remember which- hpelite 190t- how do i find out wehat core?

[Dalberg-Acton]

I checked, my PC (running on Debian derivative, Linux Mint) has a Sandy Bridge 2nd gen i3. Three generations back.
Linux users can find their processor info at /proc/cpuinfo

[Tilted Irish Kilt]

Ping

[Ernest_at_the_Beach]

Try looking at the BIOS.

If you know how to do that,

At bootup usually F1 or F2 or the delete key will give you entry,but some manufacturers particularly laptops have other schemes.

You may need to go to your machine label website and check.

This problems may just be on the newer machines.

[Bob434]

mym istake it’s a 12 core- but can’t find out if it’s one of those two ‘lake’ processors you listed?

[RayChuang88]

The fact that Intel has released microcode updates to both Skylake and Kaby Lake CPU's means that we may not see this problem if you're running Windows 10, since Intel will likely offer a patch for Windows 10 users to correct this problem which might be pushed out under the Windows Update system.

[Ernest_at_the_Beach]

See this :

Skylake and Kaby Lake CPUs have broken hyper-threading

[Ernest_at_the_Beach]

Hey, Mint is good,

Moved away cause I needed Gnome and Zoom!

Any comments on #5?

[Ernest_at_the_Beach]

But is NOT a patch to the Windows code.

[Zathras]

Hypertheading is a difficult section of Intel chips to get right.
Sounds like error came from Israeli design center in Haifa.

[Ernest_at_the_Beach]

Well this article at Phoronix has a lot of comments,...course they are Linux, Unix users mostly :

Debian Warns Of Hyper Threading Issue With Intel Sky/Kaby Lake CPUs