768k Skylake Problem/Bug - Page 16

tha · 2015-12-15, 23:53

OK, I just got an email from security guys at Intel. They are working on it, trying to replicate the error.

Code:

I am the processor debug lead in IDC CCE team.
 
I tried to reproduce the issue with 6700K processor on RVP8, with latest BKC.
After 24 hours run of Prime95 with the seed specified below, no hang was observed, the test was finished on all 4 cores.
 
In order to understand the problem we should get help here, I can think on 2 options:
 
1.      Help of censored to run several systems for few days, hope to encounter the failure.
2.      (preferred) Obtain more accurate information on which motherboards the failure occurred, and investigate:
a.      Which BKC is used (i.e MCU, CSME, graphics driver, etc.). It might be correlated to some known issue that was already fixed but not updated in those boards. The processor cores & system might be affected indirectly by other ingredients, such as graphics drive or other SW ingredient.
b.      Board power delivery design and load line values

Can people help with this info?

I had suggested to them to let Prime95 work on exponent 14942209

Aurum · 2015-12-16, 00:11

If they have problems to reproduce the error they should try prim 27.9 + these settings: http://www.bilder-hochladen.net/files/hb0a-9y-635a.jpeg

That's the fastest way to reproduce the problem. Keep in mind that there are working combinations out there.

2a. The hardware was already posted. If they are not able to reproduce the error I can give them access to my system (Teamviewer).

2b. Power supply: be quiet straight power 10; load line = all stock

My hardware:

Quote:

- 6700k
- Asrock OC Formula Z170 - Bios 1.7
- 32 GB Ram - CMK32GX4M2A2666C16 - ver 4.31 (=Samsung)
- Noctua NH-D15
- 500 GB M550 SSD
- Win 7 64 Bit

chalsall · 2015-12-16, 01:13

Quote:

Originally Posted by Aurum

2a. The hardware was already posted. If they are not able to reproduce the error I can give them access to my system (Teamviewer).

That is a very kind offer. Thanks. Please be sure those asking to access your system are legitimate.

It would also be very good if others with different systems stepped forward to report their failures.

For some reason the silence has been deafening lately....

kladner · 2015-12-16, 02:21

Quote:

Originally Posted by chalsall

Just because I think this is _really_ important, I'm going to keep

'ing this thread until we have consensus and conclusion.

Hardware vendors don't like admitting fault ("Think of the Children!!! Um, we mean, the liability...").

It is important that the consumers keep at this, IMHO.

I wish I had a system so new that I could worry about this lurking bug, and of course, run lots of tests for it.

ATH · 2015-12-16, 07:18

Quote:

Originally Posted by tha

Can people help with this info?

I had suggested to them to let Prime95 work on exponent 14942209

Remember to say they need hyperthreading on and to run 8 threads. Like in the screenshot Aurum posted, but with more than 15 minutes.

tha · 2015-12-16, 19:24

OK, here is a new request from the security guys at Intel:

Quote:

Sorry working at Intel we're way too used to speaking in acronym soup ;) Looking for the microcode version, BIOS verison, and motherboard details. Internally we have managed to reproduce the hang overnight by moving to an older version of microcode but we want to ensure that we understand all of the ramifications to catch any potential corner cases.

MCU - Microcode version
CSME- Consolidated Security and Manageability Engine
Graphics Driver - Discrete, built in, etc
BIOS version
Motherboard vendor/model

Thanks,

Aurum · 2015-12-16, 19:51

Current Setup:

MCU = 2D
CSME = 11.0.0.1158
Graphics Driver = built in - HD graphics - version: 10.18.15.4248 (discrete graphic card was also tested - didn't make any difference)
BIOS version = tested 1.3, 1.4, 1.44 beta, 1.5, 1.7, 1.9, 1.92 beta - at the moment 1.9
Motherboard vendor/model = Asrock Z170 OC Formula

Phil MjX · 2015-12-16, 19:53

Hi all,

This is what I got from MSI after my second mail with more technical details and result files :

Quote:

We are checking it.Please wait for us.Thanks!

Short but hopefully efficient.

Regards,
Philippe

Xyzzy · 2015-12-16, 21:22

Quote:

Originally Posted by tha

I posted a thread on Intels hardware forum. See if that gets us anything.

You have a reply there.

Aurum · 2015-12-16, 21:53

Code:

---------------------------
--- Testing Processor 1 ---
---------------------------


--- IPDT64 - rev  2.20.0.0.W.MP ---


--- Start Time: 12/16/2015 22:42:52---


--- Skipping Config ---


 --- Reading CPU Manufacturer --- 

Expected --> GenuineIntel
Detected --> GenuineIntel
Found --- Genuine Intel Processor ---

 --- Temperature Test --- 

Temperature Test Passed!!!


Temperature = 79 degrees C below maximum.


 --- Reading Brand String --- 

Detected Brand String:
Intel Core i7-6700K   4.00GHz


Brand String Test Passed!!!


 --- Reading CPU Frequency --- 

Expected CPU Frequency is --> 4.00


Detected CPU Frequency is --> 7.4008

CPU Frequency Test Passed!!!

Expected frequency - The highest frequency at which the tested processor was manufactured to operate
Detected frequency - The frequency at which the tested processor is currently operating
Power management modes can create marginally higher or lower detected frequency
than expected frequency. Small variations in clock frequencies are common.

 --- FSB NOT Supported on this Processor --- 


 --- Running Base Clock test --- 


Detected Base Clock --> 134
Base Clock test Pass ---
..QPI rate Test not supported..
..Skipping QPI rate Test..

Skipping QPI rate Test


 --- Running Floating Point test --- 


Million Floating Points per Second, MFLOPS --> 561.6
Floating Point Test Pass ---

 --- Running Prime Number Generation Test --- 


Operation Per Second--> 8.63953e+006
Prime Number Generation Test Pass ---

 --- Reading Cache Size ---  

- Detected L1 Data Cache Size --> 4 x 32
- Detected L1 Inst Cache Size --> 4 x 32

- Detected L2 Cache Size --> 1024
- Detected L3 Cache Size --> 8192


 Cache Size Test Passed!!!


 --- Determining MMX - SSE capabilities --- 


         --- CPU FEATURES DETECTION FOR ---
                ---        MMX SSE       ---
MMX         - MMX Supported -->    Yes
SSE         - SSE Supported -->    Yes
SSE2         - SSE2 Supported -->    Yes
SSE3         - SSE3 Supported -->    Yes
SSSE3         - SSSE3 Supported -->    Yes
SSE4.1         - SSE4.1 Supported -->    Yes
SSE4.2         - SSE4.2 Supported -->    Yes
        --- MMX SSE - capabilities check complete ---

MMX Test Result --- PASS
SSE Test Result --- PASS
SSE2 Test Result --- PASS
SSE3 Test Result --- PASS
SSSE3 Test Result --- PASS
SSE4.1 Test Result --- PASS
SSE4.2 Test Result --- PASS
MMX SSE Testing Passed !! 

 --- Determining AVX AES PCLMULQDQ capabilities --- 


         --- CPU FEATURES DETECTION FOR ---
               --- AVX/AES/PCLMULQDQ ---
AVX         - Advanced Vector Extensions Supported -->    Yes
AVX OS Support   - AVX Operating System Supported -->        Yes
AES         - Advanced Encryption Standard Supported -->    Yes
PCLMULQDQ     - Polys Carry-Less Multiply Supported -->    Yes
    --- AVX AES PCLMULQDQ capabilities check complete ---

AVX Compare Test Result --- PASS
AES Test Result --- PASS
PCLMULQDQ Test Result --- PASS
AVX AES PCLMULQDQ Testing Passed !! 

--- Reading Memory Size --- 


Detected Memory Size is --> 32.00GB


--- Integrated Memory Controller Stress Test --- 


--- Integrated Memory Controller Stress Test Pass!!! --- 


Integrated Memory Controller Test Pass!!!

..Platform Controller Hub Test not supported curent chipset..
..Skipping Platform Controller Hub Test..

Skipping Platform Controller Hub Test



 --- Querying for Intel(R) Integrated Graphics Device (IGD) ---

..Detected 8086 as Vendor ID on Device 2 on Intel(R) processor..
..Intel(R) Integrated Graphics Device Presence Detection Passed..


..2D Graphics Visual Display Passed..


..Graphics Visual Display Passed..


..Rotating Display Passed..


 --- CPU Load --- 


 --- Load Level = 8


CPU Load Passed!!!


 --- Temperature Test --- 

Temperature Test Passed!!!


Temperature = 71 degrees C below maximum.


--- Test End Time: 12/16/2015 22:46:51---



System Information
------------------
Processor Name: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
Processor Information: Intel64 Family 6 Model 94 Stepping 3
Number of Physical Cores: 4
Number of Logical Cores: 8
Installed System Memory: 32 GB
Operating System: Microsoft Windows 7 Professional 64-Bit
Graphics Information: Intel(R) HD Graphics 530
System Product: Z170 OC FORMULA
System BIOS: P1.70

Batalov · 2015-12-16, 21:55

Suggestion: (register and) post in Henk's thread. This will get Intel's attention; posting here - maybe not so fast.

2015-12-16, 19:51	#172
Aurum Nov 2015 110010₂ Posts	Current Setup: MCU = 2D CSME = 11.0.0.1158 Graphics Driver = built in - HD graphics - version: 10.18.15.4248 (discrete graphic card was also tested - didn't make any difference) BIOS version = tested 1.3, 1.4, 1.44 beta, 1.5, 1.7, 1.9, 1.92 beta - at the moment 1.9 Motherboard vendor/model = Asrock Z170 OC Formula Last fiddled with by Aurum on 2015-12-16 at 19:53

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2015-12-16, 21:55	#176
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9,497 Posts	Suggestion: (register and) post in Henk's thread. This will get Intel's attention; posting here - maybe not so fast.