On Tue, Aug 25, 2015 at 8:43 AM, Konrad Rzeszutek Wilk <kon...@darnok.org> wrote:
> On Tue, Aug 25, 2015 at 02:55:31PM +0800, Chen, Tiejun wrote: > > On 8/25/2015 8:19 AM, Tamas K Lengyel wrote: > > >Hi everyone, > > >I saw some people passingly mention this on the list before but just in > > >case it has been missed, my serial is also being spammed with the > following > > >printouts with both Xen 4.6 RC1 and the latest staging build: > > > > > >... > > >(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr > > >33487d7000, iommu reg = ffff82c000201000 > > >(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set > > >(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr > > >33487d7000, iommu reg = ffff82c000201000 > > >(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set > > >(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr > > >33487d7000, iommu reg = ffff82c000201000 > > >(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set > > >(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr > > >33487d7000, iommu reg = ffff82c000201000 > > >(XEN) [VT-D]DMAR: reason 06 - PTE Read access is not set > > >(XEN) [VT-D]DMAR:[DMA Read] Request device [0000:00:02.0] fault addr > > >2610742000, iommu reg = ffff82c000201000 > > >(XEN) [VT-D]DMAR: reason 07 - Next page table ptr is invalid > > >... > > > > > > > What's your platform? BDW? And how much memory is set to your guest OS? > > Is see this as well. But oddly enough - only when I use the AMT feature > (normally I just use serial console on the machine). > > The platform is /DQ67SW, BIOS > SWQ6710H.86A.0066.2012.1105.1504 11/05/2012 > Same board for mine and same BIOS version. I'm also using the serial through AMT. This is showing up for dom0 without any guests. Dom0 however has a max memory set to 4GB. This is my Xen boot param: dom0_mem=4096M,max:4096M dom0_max_vcpus=4 dom0_vcpus_pin=true hap_1gb=false hap_2mb=false loglvl=all guest_loglvl=all sync_console console_to_ring com1=115200,8n1,amt console=com1 intel_iommu=on Tamas
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