Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-10-31 Thread none
On Sun, 29 Oct 2017, none wrote: So is there an example ocaml code that can trigger the bug ? Read the first referece (the INRIA ocaml bug report) throughoutly. It has been public since day one. And read all references in the updates I sent to that thread too, for good measure. It is not

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-10-30 Thread Jimmy Johnson
On 10/29/2017 01:17 AM, none wrote: So is there an example ocaml code that can trigger the bug ? Debian Linux reveals Intel Skylake and Kaby Lake processors have broken hyper-threading http://www.zdnet.com/article/debian-linux-reveals-intel-skylake-kaby-lake-processors-have-broken-hyper-thre

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-10-29 Thread Henrique de Moraes Holschuh
On Sun, 29 Oct 2017, none wrote: > So is there an example ocaml code that can trigger the bug ? Read the first referece (the INRIA ocaml bug report) throughoutly. It has been public since day one. And read all references in the updates I sent to that thread too, for good measure. It is not like

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-10-29 Thread none
So is there an example ocaml code that can trigger the bug ?

Re: Sound issue WAS: Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-27 Thread deloptes
John Elliot V wrote: > KDE -> System Settings -> Multimedia (Hardware) -> Audio and Video -> > Audio Hardware Setup I was going to say - it is just KDE :D - crap

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-27 Thread Henrique de Moraes Holschuh
(updated perl script, it now needs the "liblist-moreutils-perl" package) On Sun, 25 Jun 2017, Henrique de Moraes Holschuh wrote: > On Sun, 25 Jun 2017, Henrique de Moraes Holschuh wrote: > > This warning advisory is relevant for users of systems with the Intel > > processors code-named "Skylake" a

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-27 Thread Henrique de Moraes Holschuh
(updated perl script, it now needs the "liblist-moreutils-perl" package) On Sun, 25 Jun 2017, Henrique de Moraes Holschuh wrote: > On Sun, 25 Jun 2017, Henrique de Moraes Holschuh wrote: > > This warning advisory is relevant for users of systems with the Intel > > processors code-named "Skylake" a

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-26 Thread Henrique de Moraes Holschuh
(updates, hopefully the last ones...) On Sun, 25 Jun 2017, Henrique de Moraes Holschuh wrote: > Fast-forward a few months, and Mark Shinwell noticed the mention of a > possible fix for a microcode defect with unknown hit-ratio in the > intel-microcode package changelog. He matched it to the issue

Sound issue WAS: Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-26 Thread John Elliot V
On 27/06/17 03:16, John Elliot V wrote: > Hmm. I re-enabled hyper-threading (to test) and sound didn't come back. After a number of false starts I was able to restore audio by: KDE -> System Settings -> Multimedia (Hardware) -> Audio and Video -> Audio Hardware Setup Then in the Hardware sect

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-26 Thread Larry Fletcher
On 06/25/2017 05:19 AM, Henrique de Moraes Holschuh wrote: This warning advisory is relevant for users of systems with the Intel processors code-named "Skylake" and "Kaby Lake". These are: the 6th and 7th generation Intel Core processors (desktop, embedded, mobile and HEDT), their related server

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-26 Thread John Elliot V
On 27/06/17 02:47, John Elliot V wrote: > I disabled hyper-threading in my BIOS in response to this advisory (I > have an i7-7700K). Now I get weird graphical artifacts in drop-down > lists in KDE (they flash between black and white background) and sound > has stopped working on my system. Can anyo

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-26 Thread John Elliot V
I disabled hyper-threading in my BIOS in response to this advisory (I have an i7-7700K). Now I get weird graphical artifacts in drop-down lists in KDE (they flash between black and white background) and sound has stopped working on my system. Can anyone guess why that might be happening? I might tr

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-25 Thread Henrique de Moraes Holschuh
Minor update on the issue: The check command provided in the advisory to test for hyper-threading doesn't work: it will always report hyper-theading as enabled. A better command is provided below. Note: this also means the perl script will give some false-positives. I apologise for the inconveni

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-25 Thread Henrique de Moraes Holschuh
For the record: the email with the perl script doesn't contain malware. The "malware" alert came from an extremely badly configured system that violates every best practice in the field: it sends email to every original recipient (and not just to local users), and it FORGES its headers to look lik

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-25 Thread Henrique de Moraes Holschuh
On Sun, 25 Jun 2017, Henrique de Moraes Holschuh wrote: > This warning advisory is relevant for users of systems with the Intel > processors code-named "Skylake" and "Kaby Lake". These are: the 6th and > 7th generation Intel Core processors (desktop, embedded, mobile and > HEDT), their related ser

Re: [WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-25 Thread Henrique de Moraes Holschuh
On Sun, 25 Jun 2017, Henrique de Moraes Holschuh wrote: > This warning advisory is relevant for users of systems with the Intel > processors code-named "Skylake" and "Kaby Lake". These are: the 6th and > 7th generation Intel Core processors (desktop, embedded, mobile and > HEDT), their related ser

[WARNING] Intel Skylake/Kaby Lake processors: broken hyper-threading

2017-06-25 Thread Henrique de Moraes Holschuh
This warning advisory is relevant for users of systems with the Intel processors code-named "Skylake" and "Kaby Lake". These are: the 6th and 7th generation Intel Core processors (desktop, embedded, mobile and HEDT), their related server processors (such as Xeon v5 and Xeon v6), as well as select