DMAR error with SM2263XT controller

[Ingo Brunberg]

I have got a HP EX900 NVMe SSD with the SM2263XT controller. Whenever I
perform fstrim on this device, I get the appended error message. Maybe
something can be made out of that.

DMAR: DRHD: handling fault status reg 3
DMAR: [DMA Read] Request device [04:00.0] fault addr f98eb000 [fault reason 06] PTE Read access is not set
DMAR: DRHD: handling fault status reg 3
DMAR: [DMA Read] Request device [04:00.0] fault addr f99e3000 [fault reason 06] PTE Read access is not set
DMAR: DRHD: handling fault status reg 3
DMAR: [DMA Read] Request device [04:00.0] fault addr f99fc000 [fault reason 06] PTE Read access is not set
DMAR: DRHD: handling fault status reg 3