Re: kern/59922: iwm0 - Intel Dual Band Wireless AC 8265 (rev. 0x78) - stopped working on NetBSD 11.0_BETA

["Bartek Krawczyk via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR kern/59922; it has been noted by GNATS.

From: Bartek Krawczyk <bartek.krawczyk%gmail.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/59922: iwm0 - Intel Dual Band Wireless AC 8265 (rev. 0x78) -
 stopped working on NetBSD 11.0_BETA
Date: Sun, 25 Jan 2026 20:36:48 +0100

 On 1/21/26 01:20, Michael van Elst via gnats wrote:
 >   That should mean that the firmware isn't answering (probably because
 >   it halted for some unknown error condition). The error also breaks
 >   the interface initialization, so it doesn't go into RUNNING state.
 >   
 >   
 >   > Also wpa_supplicant is not able to work with iwm0:
 >   >
 >   > messages:Jan 20 23:14:30 laptop wpa_supplicant[2716]: ioctl[SIOCS80211,
 >   > op=23, val=0, arg_len=0]: Invalid argument
 >   
 >   That's a scan request that fails because the interface
 >   isn't UP and RUNNING.
 >   
 >   
 >   You could try to #ifdef out the failing call. It tries to configure
 >   the chip for Wifi priority over Bluetooth but I doubt that strictly
 >   necessary for it to function.
 >   
 >   E.g.:
 >   
 >   --- if_iwm.c    21 Dec 2025 16:24:39 -0000      1.93
 >   +++ if_iwm.c    21 Jan 2026 00:12:30 -0000
 >   @@ -7651,12 +7651,14 @@ iwm_init_hw(struct iwm_softc *sc)
 >                   goto err;
 >           }
 >    
 >   +#if 0
 >           err = iwm_send_bt_init_conf(sc);
 >           if (err) {
 >                   aprint_error_dev(sc->sc_dev,
 >                       "could not init bt coex (error %d)\n", err);
 >                   goto err;
 >           }
 >   +#endif
 >    
 >           if (isset(sc->sc_enabled_capa,
 >               IWM_UCODE_TLV_CAPA_SOC_LATENCY_SUPPORT)) {
 >   
 
 Thanks for the hints,
 I tried that but unfortunately no change. With or without dhcpcd 
 running, it doesn't connect to ssid:
 [   406.034465] iwm0: could not initiate scan (error = 35)
 [   412.984545] iwm0: could not initiate scan (error = 35)
 [   419.924626] iwm0: could not initiate scan (error = 35)
 [   429.864741] iwm0: could not initiate scan (error = 35)
 
 ifconfig iwm0 list scan still works. Restarting wpa_supplicant (with or 
 without dhcpcd) doesn't help.
 
 Regards
 Bart