NIC Bonding cause DMAR Error

peacepipe

New Member
Dec 5, 2016
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Hi Guys,

maybe it's a bug. If I configure my PVE a bond0 with eth0+eth1 as slaves (eth0+eth1 are the same PCI Card). I got in dmesg following error:

Code:
[  818.549265] DMAR: DRHD: handling fault status reg 3
[  818.549299] DMAR: [DMA Read] Request device [04:00.0] fault addr ffb0a000 [fault reason 06] PTE Read access is not set

lspci:
Code:
04:02.0 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet Controller (Copper) (rev 01)
04:02.1 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet Controller (Copper) (rev 01)

grub
Code:
GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on"

If I change it from "on" to "pt" the errros are away but it's senseless because PCI Passthrough doesn't work afterwards.
So what can I do now to solve this issue?