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Date:      Sat, 19 Sep 2020 08:27:03 +0000
From:      bugzilla-noreply@freebsd.org
To:        wireless@FreeBSD.org
Subject:   [Bug 249444] iwm 9250 not starting properly after boot
Message-ID:  <bug-249444-21060@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249444

            Bug ID: 249444
           Summary: iwm 9250 not starting properly after boot
           Product: Base System
           Version: 12.1-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: wireless
          Assignee: wireless@FreeBSD.org
          Reporter: freebsd@justmail.de

On my Lenovo TP T460 the iwm interface (Intel 8260) does not work properly
after booting.
My settings are:
FreeBSD 12.1p10 + FreeBSD 12.2-BETA1

/boot/loader.conf:
if_iwm_load="YES"
iwm8000Cfw_load="YES"

/etc/rc.conf
ifconfig_em0="up"
wlans_iwm0="wlan0"
ifconfig_wlan0="WPA powersave"
create_args_wlan0=" country DE"
cloned_interfaces="lagg0"
ifconfig_lagg0="laggproto failover laggport em0 laggport wlan0 DHCP"

during boot, i get a lot of 
wlan0: link state changed to UP
lagg0: link state changed to UP
wlan0: link state changed to DOWN
lagg0: link state changed to DOWN
iwm0: device timeout
iwm0: dumping device error log
iwm0: errlog not found, skipping
wlan0: link state changed to UP
lagg0: link state changed to UP

In most cases there is no connection at the point when the system has booted to
login-prompt. But a "service netif restart" connects the wlan reliably!

I've tried also to load the iwm-modules via kld_list in rc.conf, or let FreeBSD
autodetect the iwm but it does not work also. However,  restarting netif does
work in all those loading scenarios and brings up iwm+lagg.

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