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* [Bug 209321] DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set
@ 2020-10-07 15:43 Bjorn Helgaas
  2020-10-08  8:22 ` Joerg Roedel
  0 siblings, 1 reply; 2+ messages in thread
From: Bjorn Helgaas @ 2020-10-07 15:43 UTC (permalink / raw)
  To: linux-pci, iommu; +Cc: Len Brown, linux-kernel, Todd Brandt

https://bugzilla.kernel.org/show_bug.cgi?id=209321

Not much detail in the bugzilla yet, but apparently this started in
v5.8.0-rc1:

  DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set

Currently assigned to Driver/PCI, but not clear to me yet whether PCI
is the culprit or the victim.
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^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [Bug 209321] DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set
  2020-10-07 15:43 [Bug 209321] DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set Bjorn Helgaas
@ 2020-10-08  8:22 ` Joerg Roedel
  0 siblings, 0 replies; 2+ messages in thread
From: Joerg Roedel @ 2020-10-08  8:22 UTC (permalink / raw)
  To: Bjorn Helgaas; +Cc: linux-pci, iommu, Len Brown, linux-kernel, Todd Brandt

Hi Bjorn,

On Wed, Oct 07, 2020 at 10:43:14AM -0500, Bjorn Helgaas wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=209321
> 
> Not much detail in the bugzilla yet, but apparently this started in
> v5.8.0-rc1:
> 
>   DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set
> 
> Currently assigned to Driver/PCI, but not clear to me yet whether PCI
> is the culprit or the victim.

Thanks for the heads-up, looks like Intel is already on it.

Regards,

	Joerg
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https://lists.linuxfoundation.org/mailman/listinfo/iommu

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2020-10-07 15:43 [Bug 209321] DMAR: [DMA Read] Request device [03:00.0] PASID ffffffff fault addr fffd3000 [fault reason 06] PTE Read access is not set Bjorn Helgaas
2020-10-08  8:22 ` Joerg Roedel

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