Date: Thu, 17 Feb 2022 00:46:18 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: John Schneider <john.a.schneider@gmail.com> Cc: freebsd-wireless@freebsd.org Subject: Re: My iwn device can no longer scan for access points with stable/13 Message-ID: <alpine.BSF.2.00.2202170032550.68830@ai.fobar.qr> In-Reply-To: <CAJdGomXa9mYqEiJFh88SwCgoXcYn6y_KskbHECeavxx7Kn-wXQ@mail.gmail.com> References: <CAJdGomXa9mYqEiJFh88SwCgoXcYn6y_KskbHECeavxx7Kn-wXQ@mail.gmail.com>
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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
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