Re: Go ports are crashing wireless (AX201)

(...)

Other thing: pciconf doesn't show AX200 or AX201 anymore:

% pciconf -lv | grep -A4 iwlwifi
iwlwifi0@pci0:0:20:3:   class=0x028000 rev=0x00 hdr=0x00 vendor=0x8086
device=0x06f0 subvendor=0x8086 subdevice=0x0074
    vendor     = 'Intel Corporation'
    device     = '400 Series Chipset Family CNVi Wi-Fi'
    class      = network

Nuno Teixeira <eduardo@freebsd.org> escreveu (segunda, 6/07/2026 à(s)
16:21):

> Hello Bjoern,
>
> I subscribed PR 279717, and I got this problem of fetching from go ports.
> I do some rtorrent tests (sometimes for several days) with 100GB downloads
> and conection is steady.
>
> As I remenber I think I always connect with vht/80:
>
> ```
> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         options=0
>         ether xxxxxxxxxxxxxxxx
>         inet 192.168.1.188 netmask 0xffffff00 broadcast 192.168.1.255
>         groups: wlan
>         ssid OpenWrt-5 channel 40 (5200 MHz 11a vht/80-) bssid
> 82:af:ca:7f:eb:5f
>         regdomain ETSI country PT authmode WPA2/802.11i privacy ON
>         deftxkey UNDEF AES-CCM 3:128-bit AES-CCM ucast:128-bit txpower 23
>         bmiss 7 mcastrate 6 mgmtrate 6 scanvalid 60 ampdulimit 64k
>         ampdudensity 2 -amsdutx amsdurx shortgi -ldpctx ldpcrx -uapsd vht
>         vht40 vht80 vht160 -vht80p80 wme roaming MANUAL
>         parent interface: iwlwifi0
>         media: IEEE 802.11 Wireless Ethernet VHT mode 11ac
>         status: associated
>         nd6 options=829<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL,STABLEADDR>
> ```
>
> Thanks,
>
> Bjoern A. Zeeb <bz@freebsd.org> escreveu (segunda, 6/07/2026 à(s) 16:01):
>
>> On Mon, 6 Jul 2026, Nuno Teixeira wrote:
>>
>> > main-n287202-759ce9a2b38e  (Sun Jul  5)
>> > iwlwifi0: Detected Intel(R) Wi-Fi 6 AX201 160MHz
>> > wifi-firmware-iwlwifi-kmod-22000-20260410
>> ...
>> > For some time that I'm experience wireless disconnects when fetching go
>> > ports.
>> > I can easely reproduce error with:
>> ..
>> > ```
>> > Jul  6 09:25:28 leg kernel: iwlwifi0: Error sending SCAN_CFG_CMD: time
>> out
>> > after 2000ms.
>> > Jul  6 09:25:28 leg kernel: iwlwifi0: Current CMD queue read_ptr 104
>> > write_ptr 105
>>
>> This is a variant of PR 279717.   I need to follow-up there with more
>> information.
>>
>> Are you running at VHT160, VHT80, ..?
>>
>> You could try to limit the channel width to something narrower (espcially
>> if you are doing VHT160 or HT40) and see if that helps.
>>
>> /bz
>>
>> --
>> Bjoern A. Zeeb                                                     r15:7
>>
>
>
> --
> Nuno Teixeira
> FreeBSD UNIX:  <eduardo@FreeBSD.org>   Web:  https://FreeBSD.org
>


-- 
Nuno Teixeira
FreeBSD UNIX:  <eduardo@FreeBSD.org>   Web:  https://FreeBSD.org