Re: Bug report about ath9k

[Vincent Danjean <vdanjean@debian.org>]

   Hi,

Le 22/02/2023 à 01:32, James a écrit :
> Try disabling power saving.
> w dev wlanX set power_save off
> Maybe that command.

   For the record, this did not change anything. The problem seemed
triggered by an external event : no log during the week I was not at
home (but the server was still online and used for regular backup,
asterisk, etc. with a few domotic object still connected via wifi)
However, when present, I saw an error just after midnight nearly
all days (with some few exceptions) and sometimes at other
times (5 PM, 8 AM, etc.)
   I did not succeeded at finding the external cause. But I "fixed"
the problem by adding the "iommu=pt" kernel parameter.
As I'm using the network card on the host, if I'm correct, this
parameter just tells linux to *not* use iommu for this device in
this case.

   So, I think that the ath9k has a bug wrt iommu. If you ever want
I tried some things (debug, new versions, etc.), I can do it.
Just tell me.
   I did not tried to manager the device in a VM (that would
require the use of iommu for this device)

   Regards
     Vincent