DMA write/fault when 802.11w is enabled

[James Prestwood]

Hi,

After enabling 802.11w on some internal networks I noticed all of our 
ath10k client devices now show this during and just after every 
connection/roam. It started immediately after flipping to 802.11w on the 
APs, for every client running ath10k.

They are all running the QCA6174 hw3.2 WLAN.RM.4.4.1-00288-

I don't see it causing any delays or issues in the connection or 
afterwards, but it caught me off guard and was slightly concerning. 
Anyone else notice this with 802.11w enabled on the QCA6174?

kernel: DMAR: DRHD: handling fault status reg 2
kernel: DMAR: [DMA Write NO_PASID] Request device [02:00.0] fault addr 
0xffe4c000 [fault reason 0x05] PTE Write access is not set