On Thu, Feb 12, 2015 at 02:37:34PM -0500, Mark Hounschell wrote:
> I've cleaned the machine of all our drivers and also the nvidia
> driver. If the problem is as you say, it is an in-kernel driver.
> I've attached a dmesg taken after it started. I used the dgap driver
> from the staging directory to unload and trigger this as I have one.
> That driver does NO dma. I know because I'm one of the maintainers
> and have done lots of work on it.
I have seen reports before with IOMMU problems and the NVidia driver.
Can you reproduce the problem without any out-of-tree stuff and without
staging modules ever loaded after boot? The Tainted flags in the warning
should be empty then.
> [ 122.810648] AMD-Vi: Event logged [IO_PAGE_FAULT device=0f:00.0
> domain=0x0001 address=0x000000000007a260 flags=0x0020]
This indicates that the driver for device 0f:00.0 (or something behind
it if it is a bridge) could be the problem.
Joerg
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