Interesting. Looks like a scan is hung.When I start a superuser scan, I log exactly two lines: May 5 22:45:22 ptavv kernel: wlan0: ieee80211_scanreq: vap 0xfffffe0167a47010 iv_state 0x5 (RUN) flags 0x1b duration 0x7fffffff mindwell 0 maxdwell 0 nssid 0 May 5 22:45:22 ptavv kernel: wlan0: ieee80211_swscan_start_scan_locked: active scan already in progress
On Mon, May 5, 2025 at 10:14 PM Adrian Chadd <adr...@freebsd.org> wrote: > hi, > > it should start logging stuff to the kernel log! Try looking at the dmesg > output :) > > > We don't have a useful tracing mechanism besides that right now. > > > > -adrian > > > On Mon, 5 May 2025 at 21:59, Kevin Oberman <rkober...@gmail.com> wrote: > >> On Sun, May 4, 2025 at 1:29 PM Adrian Chadd <adr...@freebsd.org> wrote: >> >>> >>> >>> On Sun, 4 May 2025 at 10:41, Bjoern A. Zeeb <b...@freebsd.org> wrote: >>> >>>> On Sun, 4 May 2025, Kevin Oberman wrote: >>>> >>>> Hi, >>>> >>>> > I have now located and am now running on an ASUS RT-ARCH13 router >>>> connected >>>> > to Comcast. This device claims WiFi5 compliance with 11ac and CCMP. >>>> > >>>> > Still stuck at 11ng and only connects at 2.4G. >>>> > >>>> >> ifconfig wlan0 >>>> > wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 >>>> mtu 1500 >>>> > options=0 >>>> > ether 70:a8:d3:df:3c:de >>>> > inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255 >>>> > groups: wlan >>>> > ssid babcom channel 11 (2462 MHz 11g ht/20) bssid 4c:ed:fb:37:b0:20 >>>> > regdomain FCC country US authmode WPA2/802.11i privacy ON >>>> > deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 7 scanvalid 60 >>>> > protmode CTS -ampdu ampdulimit 64k -amsdutx amsdurx shortgi >>>> > -ldpctx ldpcrx -uapsd wme roaming MANUAL >>>> > parent interface: iwlwifi0 >>>> > media: IEEE 802.11 Wireless Ethernet MCS mode 11ng >>>> > status: associated >>>> > nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> >>>> > >>>> > My AP shows up as: 11 54M -51:-96 100 EP HTCAP VHTCAP >>>> VHTOPMODE WME >>>> > ATH RSN >>>> > The 5G SSID does not show up at all, though my phone shows it and >>>> connects >>>> > successfully. Attempts to manually scan return instantly and list scan >>>> > always list the exact same data including S/N, so it does not seem to >>>> > actually scan. >>>> >>> >>> Is there still that scan bug where an interrupted scan never finishes, >>> and thus "ifconfig wlan0 scan" always returns cached scan results? >>> I thought that was fixed years ago. :/ >>> >>> Also, Kevin, is this on iwlwifi? That should be doing offloaded >>> scanning, right bz? So as long as we send a well crafted firmware >>> message with a useful dwell time, it should be seeing the beacons? >>> >>> What dwell time is being configured when doing scanning on iwlwifi? >>> >>> >>> >>> -adrian >>> >>> >>>> >>>> You are #5 reporting this lately of either not seeing the SSID or it >>>> taking ages to show up. I initially started with 1 then 3 people. >>>> Some say another AP n their mesh further away does show up in scan >>>> results but the one next to them does not. >>>> >>>> There is also https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286493 >>>> (for the "takes ages" to assoc). >>>> >>>> >>>> If you run `ifconifg wlan0 scan` as super user; sometimes you have to >>>> try >>>> 10-15 times; eventually it hangs; then give it some time and if it >>>> doens't return after 30-60s ^c and do a list scan manually. >>>> >>>> There's something really fishy going on somewhere but we don't know yet. >>>> >>>> >>> Hm, can you re-do the scan with scan debugging enabled? >>> >>> wlandebug -i wlan0 +scan >>> >>> let's see what the scan engine sees, in case it's tossing out frames for >>> some reason. >>> >>> >>> >>> -adrian >>> >>> -- >>>> Bjoern A. Zeeb r15:7 >>>> >>>> >> I'm afraid that I am baffled as to running wlandebug. The man page didn't >> help much. >> >> When I run the command, it prints out a single line and exits. Is there >> something I need to do to collect data when I start a scan? >> -- >> Kevin Oberman, Part time kid herder and retired Network Engineer >> E-mail: rkober...@gmail.com >> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 >> > -- Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkober...@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
