Re: [2.6.35] AMD-Vi: Enabling IOMMU at 0000:00:00.2 cap 0x40 BUG: unable to handle kernel NULL pointer dereference at 0000000000000198

From: Sander Eikelenboom
Date: Tue Aug 10 2010 - 16:36:43 EST


Hello Joerg,

Errr which seperate usb controller ? .. it has actually:
- 1 pci-e usb 2.0 controller
- 2 pci-e usb 3.0 controller (one of which includes a sata controller as well)

(apart from the onboard stuff)

--
Sander


Tuesday, August 10, 2010, 10:28:39 PM, you wrote:

> On Tue, Aug 10, 2010 at 08:05:14PM +0200, Sander Eikelenboom wrote:
>> Could you also provide a perhaps more specific message what is wrong
>> with the bios, that i could forward to MSI, in the hope it will reach
>> the bios engineers someday ? :-)

> Lets first prove that my theory is right before contacting MSI directly.
> Can you try the attached patch? it should fix the boot-crash. When the
> system booted successfully please try some USB device (make sure it uses
> the seperate usb-controler, I guess the seperate device is responsible
> for USB 3, so try to plug a device into one of your USB 3 ports).
> If you finished that please send me whether it worked or not and the
> full dmesg output of the system.

> Joerg




--
Best regards,
Sander mailto:linux@xxxxxxxxxxxxxx

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