Hi,
* Stefan Sperling wrote:
> On Fri, Apr 23, 2021 at 12:28:42PM +0200, Matthias Schmidt wrote:
> > I had a new kernel with only your following patch running all day and
> > never encountered the situation as described in my last email.
> > Connection was stable and transfer rates remained around 3MB/s. This is
> > less then the rates mentioned in your recent email but I rarely get
> > higher speeds. So I assume it is to my environment and has nothing to
> > do with the patch.
>
> Ok. Thanks for spending the time to check this thoroughly. I have already
> made myself spend many hours debugging ghosts after test observations like
> this, many many times :-) So I've become careful about quickly drawing
> conclusions from observations like this. Wifi is complicated and as far
> as I know nobody is ever testing OpenBSD wifi patches in an RF-isolated lab.
>
> Many problem reports I receive (and many of those arrive in private
> email, unfortunately) boil down to "it doesn't work when the cafe downstairs
> fills up with laptops and phones at lunch time" or "it only becomes slow
> when two or more laptops are doing video calls at the same time".
> The problem is that sometimes there are bugs to fix or missing features to
> implement in situations like this, so I cannot just dismiss such reports
> outright. But dealing with them can take a huge amount of time.
> To be honest, I wouldn't consider your problem a blocking issue. I would
> first wait to see if the exact same issue pops up elsewhere after the
> patch lands in the tree.
Seems I hit a byzantine situation like that. I had the patch running on
the T450s with the 8265 and additionally on a X250 with the following
hardware all evening and morning (including suspend/resume cycles) and
it worked as expected.
iwm0 at pci2 dev 0 function 0 "Intel AC 7265" rev 0x59, msi
iwm0: hw rev 0x210, fw ver 17.3216344376.0, address
Cheers and thanks for the good work and your efforts
Matthias
