Re: My iwn device can no longer scan for access points with stable/13

I spent some time on this today and realized when running mergemaster, I
accidentally skipped over a file related to wpa_supplicant.  After updating
it, everything is working fine.

Sorry for the false alarm.

John

On Sun, Feb 20, 2022 at 1:28 PM Bjoern A. Zeeb <
bzeeb-lists@lists.zabbadoz.net> wrote:

> On Thu, 17 Feb 2022, John Schneider wrote:
>
> > I did the normal upgrade process described in the handbook - buildworld,
> > buildkernel, installkernel, reboot, installworld, etc.  iwn works fine
> > after stable/13 installkernel and reboot (which is at that point
> > releng/13.0 world with stable/13 kernel.  In fact I am sending this email
> > via iwn while using stable/13 kernel. It is only after installing
> stable/13
> > world and rebooting that iwn can no longer scan.
> >
> > I am happy to re-install stable/13 world and produce more debugging info.
> > Just let me know what would be helpful.
>
> Ok, that limits things;  adding Cy to Cc:  ; he may know better about
> the state on stable/13 when it comes to wpa_supplicant.
>
> Might also be intersting to try an ifconfig from stable/13 an manually
> trigger and list the scan result:
>
> ifconfig wlan0 scan
> ifconfig wlan0 list scan
>
> and see if that still works.  Problem is that ifconfig these days
> needs a lot of libraries (on main) but the /rescue version is probably
> directly usable so finding that in the obj tree and trying it out
> directly would be helpful as a starter.
>
> /bz
>
>
> > Thanks,
> > John
> >
> > On Wed, Feb 16, 2022 at 7:46 PM Bjoern A. Zeeb <
> > bzeeb-lists@lists.zabbadoz.net> wrote:
> >
> >> On Wed, 16 Feb 2022, John Schneider wrote:
> >>
> >> Hi,
> >>
> >>> Today I upgraded from releng/13.0 to stable/13 but found my iwn device
> >>> could no longer scan for access points.  I rolled back to releng/13.0
> and
> >>> everything was fine again.  No config changes were made during the
> >> upgrade
> >>> or rollback process.
> >>>
> >>> /var/log/messages contained messages such as the one below with each
> scan
> >>> attempt:
> >>> Feb 16 16:12:33 mobile1 wpa_supplicant[385]: wlan0:
> >> CTRL-EVENT-SCAN-FAILED
> >>> ret=-1 retry=1
> >>
> >> -1 is nothing the kernel should return so I don't know what the actual
> >> error is.
> >>
> >>
> >>> I didn't see any other errors except ACPI stuff which looked normal to
> me
> >>> for this machine.  For reference, here is the pciconf output for my
> >> device:
> >>>
> >>> iwn0@pci0:2:0:0:        class=0x028000 rev=0x35 hdr=0x00 vendor=0x8086
> >>> device=0x
> >>> 422b subvendor=0x8086 subdevice=0x1121
> >>>   vendor     = 'Intel Corporation'
> >>>   device     = 'Centrino Ultimate-N 6300'
> >>>   class      = network
> >>>
> >>> Is it possible that work being done for iwlwifi could affect scanning
> >> with
> >>> iwn and other drivers?
> >>
> >> It shouldn't as there were very little functional changes to net80211
> >> itself so far relating to this.
> >>
> >> I would more likely think of wpa_supplicant updates but even that we'd
> >> probably have heard a lot more noise.  You could run that with
> >>
> >>         wpa_supplicant_flags="-sdd"
> >>
> >> in rc.conf (from the top of my head) and see.
> >>
> >> Also did you update kernel and world or was that just a kernel update
> >> (which would rule out the above wpa_supplicant update theory)?
> >>
> >>
> >> I also only see 3 changes to iwn(4) in main and 2 of them in stable/13
> >> since releng/13.0:
> >>
> >>
> >>
> https://cgit.freebsd.org/src/commit/sys/dev/iwn?h=stable/13&id=d61f10a8780ef94f82e384248ce40d24fc27ad2b
> >>
> >>
> https://cgit.freebsd.org/src/commit/sys/dev/iwn?h=stable/13&id=67b7e2de4fc5dc1165feee8ca281c44444425d0f
> >>
> >> and the one Adrian did not MFC:
> >>
> >>
> https://cgit.freebsd.org/src/commit/sys/dev/iwn?id=b6fd00791f2b9690b0a5d8670fc03f74eda96da2&h=stable%2F13
> >>
> >>
> >> In case you are willing to go back to stable/13 and re-test things
> >> let me know so we can crank some debugging/logging up to see where the
> >> error comes from.
> >>
> >>
> >>
> >>> On a separate subject, I had tested iwlwifi on a
> >>> separate machine with stable/13 and an AX201 and it was quite stable
> >>> (though slow as has been reported by others). Keep up the great work!
> >>
> >> Thanks for testing.  I'll try to make it more stable and then faster :)
> >>
> >> Best Regards,
> >> Bjoern
> >>
> >> --
> >> Bjoern A. Zeeb                                                     r15:7
> >>
> >
>
> --
> Bjoern A. Zeeb                                                     r15:7
>