[Bug 82761] New: DMAR:[fault reason 06] PTE Read access is not set

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=82761

            Bug ID: 82761
           Summary: DMAR:[fault reason 06] PTE Read access is not set
           Product: Virtualization
           Version: unspecified
    Kernel Version: 3.16.1
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: ansalonistefano@gmail.com
        Regression: No

When I boot with "intel_iommu=on" parameter, I get these errors repeated over
and over again in dmesg:
---
dmar: DRHD: handling fault status reg 3
dmar: DMAR:[DMA Read] Request device [05:00.0] fault addr ff3f4000 
DMAR:[fault reason 06] PTE Read access is not set
---


lspci -vvs 05:00.0
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8169 PCI
Gigabit Ethernet Controller (rev 10)
        Subsystem: Realtek Semiconductor Co., Ltd. RTL8169/8110 Family PCI
Gigabit Ethernet NIC
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64 (8000ns min, 16000ns max), Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 19
        Region 0: I/O ports at c200 [size=256]
        Region 1: Memory at f7862000 (32-bit, non-prefetchable) [size=256]
        Expansion ROM at f7840000 [disabled] [size=128K]
        Capabilities: [dc] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: r8169


lspci -vt
-[0000:00]-+-00.0  Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor
DRAM Controller
           +-01.0-[01]--+-00.0  NVIDIA Corporation Device 0fc6
           |            \-00.1  NVIDIA Corporation Device 0e1b
           +-02.0  Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor
Graphics Controller
           +-14.0  Intel Corporation 7 Series/C210 Series Chipset Family USB
xHCI Host Controller
           +-16.0  Intel Corporation 7 Series/C210 Series Chipset Family MEI
Controller #1
           +-1a.0  Intel Corporation 7 Series/C210 Series Chipset Family USB
Enhanced Host Controller #2
           +-1b.0  Intel Corporation 7 Series/C210 Series Chipset Family High
Definition Audio Controller
           +-1c.0-[02]--
           +-1c.1-[03]----00.0  Realtek Semiconductor Co., Ltd. RTL8111/8168B
PCI Express Gigabit Ethernet controller
           +-1c.3-[04-05]----00.0-[05]--+-00.0  Realtek Semiconductor Co., Ltd.
RTL8169 PCI Gigabit Ethernet Controller
           |                            +-01.0  Realtek Semiconductor Co., Ltd.
RTL8169 PCI Gigabit Ethernet Controller
           |                            \-02.0  Realtek Semiconductor Co., Ltd.
RTL8169 PCI Gigabit Ethernet Controller
           +-1d.0  Intel Corporation 7 Series/C210 Series Chipset Family USB
Enhanced Host Controller #1
           +-1f.0  Intel Corporation H77 Express Chipset LPC Controller
           +-1f.2  Intel Corporation 7 Series/C210 Series Chipset Family 6-port
SATA Controller [AHCI mode]
           \-1f.3  Intel Corporation 7 Series/C210 Series Chipset Family SMBus
Controller


dmesg | grep IOMMU
Intel-IOMMU: enabled
dmar: IOMMU 0: reg_base_addr fed90000 ver 1:0 cap c0000020e60262 ecap f0101a
dmar: IOMMU 1: reg_base_addr fed91000 ver 1:0 cap c9008020660262 ecap f0105a
IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
IOMMU 0 0xfed90000: using Queued invalidation
IOMMU 1 0xfed91000: using Queued invalidation
IOMMU: software identity mapping for device 0000:00:00.0
IOMMU: software identity mapping for device 0000:00:01.0
IOMMU: software identity mapping for device 0000:00:14.0
IOMMU: software identity mapping for device 0000:00:16.0
IOMMU: software identity mapping for device 0000:00:1a.0
IOMMU: software identity mapping for device 0000:00:1b.0
IOMMU: software identity mapping for device 0000:00:1c.0
IOMMU: software identity mapping for device 0000:00:1c.1
IOMMU: software identity mapping for device 0000:00:1c.3
IOMMU: software identity mapping for device 0000:00:1d.0
IOMMU: software identity mapping for device 0000:00:1f.0
IOMMU: software identity mapping for device 0000:00:1f.2
IOMMU: software identity mapping for device 0000:00:1f.3
IOMMU: software identity mapping for device 0000:01:00.0
IOMMU: software identity mapping for device 0000:01:00.1
IOMMU: software identity mapping for device 0000:03:00.0
IOMMU: Setting RMRR:
IOMMU: Setting identity map for device 0000:00:02.0 [0xcb800000 - 0xcf9fffff]
IOMMU: Setting identity map for device 0000:00:14.0 [0xc8d17000 - 0xc8d24fff]
IOMMU: Setting identity map for device 0000:00:1a.0 [0xc8d17000 - 0xc8d24fff]
IOMMU: Setting identity map for device 0000:00:1d.0 [0xc8d17000 - 0xc8d24fff]
IOMMU: Prepare 0-16MiB unity mapping for LPC
IOMMU: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff]


OS: Debian Wheezy
Kernel: 3.16.1 (compiled by hand)

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