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fsmsolutions
Beginner
275 Views

AMT KVM w boot option iommu=on

Hi, All

I use Ubuntu 13.10 (kernel 3.11.0 amd64) server running on dq67sw.

When I connect via VNC AMT,  appears  flashing icon in the upper right corner of the server screen.
When server loaded with the boot option iommu=on
each accompanied by a flashing icon output to console:
.....
Nov 28 07:40:41 dq67srv kernel: [ 9238.777273] dmar: DRHD: handling fault status reg 2
Nov 28 07:40:41 dq67srv kernel: [ 9238.777316] dmar: DMAR:[DMA Read] Request device [00:02.0] fault addr 2b7024d000 
Nov 28 07:40:41 dq67srv kernel: [ 9238.777316] DMAR:[fault reason 07] Next page table ptr is invalid
Nov 28 07:40:41 dq67srv kernel: [ 9238.777901] dmar: DRHD: handling fault status reg 3
Nov 28 07:40:41 dq67srv kernel: [ 9238.777942] dmar: DMAR:[DMA Read] Request device [00:02.0] fault addr 2b7024d000 
Nov 28 07:40:41 dq67srv kernel: [ 9238.777942] DMAR:[fault reason 07] Next page table ptr is invalid
Nov 28 07:40:41 dq67srv kernel: [ 9238.778029] dmar: DRHD: handling fault status reg 2
Nov 28 07:40:41 dq67srv kernel: [ 9238.778063] dmar: DMAR:[DMA Read] Request device [00:02.0] fault addr 2b7024d000 
Nov 28 07:40:41 dq67srv kernel: [ 9238.778063] DMAR:[fault reason 07] Next page table ptr is invalid
Nov 28 07:40:41 dq67srv kernel: [ 9238.778341] dmar: DRHD: handling fault status reg 3
......

[bash]user@dq67srv:~$ lspci |grep 00:02.0
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

[/bash]

Which makes it impossible to work through VNC.

  1. How to suppress the flashing iconn
  2. Why is this problem:
  •   - Linux kernel
  •   - Igfx driver
  •   - ME firmware?

Thx, 
Maxim

0 Kudos
3 Replies
Gael_H_Intel
Moderator
275 Views

Sounds like a Sandy Bridge system - AMT 7 - correct?  What is the configuration of your AMT Client?  FW version, AMT SDK verson and which tools are you using to connect to the KVM?  

fsmsolutions
Beginner
275 Views

My system:

Baseboard

 
   

Manufacturer

Intel Corporation

   

Product name

DQ67SW

   

Version

AAG12527-305

   

Serial number

BQSW110001WR

   
   
   

BIOS

 
   

Vendor

Intel Corp.

   

Version

SWQ6710H.86A.0066.2012.1105.1504

   

Release date

11/05/2012

 

 Processor 1

 
   

Manufacturer

Intel(R) Corp.

   

Family

Intel® Core™ i7 Processor

   

Socket

SKTH

   

Version

Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz

   

ID

13829424153406604967

 

VNC client: RealVNC VNC Viewer Plus 1.2.6(r113854) 

 

ojw_nc
Novice
254 Views

Did you ever find a solution to this?

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