>Synopsis:      Since if_iwm.c r1.224 iwm constantly reports fatal firmware 
>error
>Category:      kernel
>Environment:
        System      : OpenBSD 6.2
        Details     : OpenBSD 6.2-current (GENERIC.MP) #1: Tue Jan 23 20:28:22 
EST 2018
                         
diena...@portabsd.home.kagu-tsuchi.com:/usr/src/sys/arch/amd64/compile/GENERIC.MP

        Architecture: OpenBSD.amd64
        Machine     : amd64
>Description:
        Since trying to update on Feb 16, trying snapshots and building
current, I've been getting fatal firmware errors as soon as the iwm device
is brought up.  Last good kernel I have is from Jan 23 as shown in the dmesg.

Rolling back the only commit to if_iwm.c since Jan 23 to r1.223 seems to fix
the problem.

The debug shows the fatal firmware error occuring each time a background scan is
initiated.  Either something with the scan or one of the access points it hits
since the scan doesn't seem to complete based on the fewer number of APs found.

>How-To-Repeat:
$ fw_update -i
Installed: iwm-firmware-0.20170105 vmm-firmware-1.10.2p5 
intel-firmware-20171117p0v0

My hostname.iwm0 is simply:
nwid decepticons
wpakey mykey
dhcp

A working ifconfig output:
$ ifconfig iwm0
iwm0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr dc:53:60:4a:b1:ea
        index 2 priority 4 llprio 3
        groups: wlan egress
        media: IEEE802.11 autoselect (HT-MCS2 mode 11n)
        status: active
        ieee80211: nwid decepticons chan 3 bssid 88:9f:fa:0b:83:46 59% wpakey 
wpaprotos wpa2 wpaakms psk wpaciphers ccmp wpagroupcipher ccmp
        inet 192.168.1.15 netmask 0xffffff00 broadcast 192.168.1.255

When failing:
$ ifconfig iwm0
iwm0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        lladdr dc:53:60:4a:b1:ea
        index 2 priority 4 llprio 3
        groups: wlan egress
        media: IEEE802.11 autoselect mode 11n (DS1)
        status: no network
        ieee80211: nwid decepticons wpakey wpaprotos wpa2 wpaakms psk 
wpaciphers ccmp wpagroupcipher ccmp
        inet 192.168.1.15 netmask 0xffffff00 broadcast 192.168.1.255


debug output on broken kernel followed by debug output on working kernel:
iwm0: hw rev 0x210, fw ver 16.242414.0, address dc:53:60:4a:b1:ea
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +23 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +19 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not remove MAC context (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +24 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +20 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +20 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +13 54M   ess  privacy   rsn  "NETGEAR20"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +33 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 3/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 4/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: begin background scan
iwm0: fatal firmware error
iwm0: RUN -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +32 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +19 54M   ess  privacy   rsn  "NETGEAR20"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 3/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 4/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: begin background scan
iwm0: fatal firmware error
iwm0: RUN -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +37 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 3/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 4/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: begin background scan
iwm0: fatal firmware error
iwm0: RUN -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +36 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 3/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 4/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: begin background scan
iwm0: fatal firmware error
iwm0: RUN -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 + 88:9f:fa:0b:83:46    3   +37 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 3/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 4/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: begin background scan
iwm0: fatal firmware error
iwm0: RUN -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +14 54M   ess  privacy   rsn  "Eric_Kira"!
 + 88:9f:fa:0b:83:46    3   +36 54M   ess  privacy   rsn  "decepticons"
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 3/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 4/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: begin background scan
iwm0: end background scan
 - 0c:54:a5:df:e5:28    6   +14 54M   ess  privacy   rsn  "Eric_Kira"!
 + 88:9f:fa:0b:83:46    3   +30 54M   ess  privacy   rsn  "decepticons"
iwm0: begin background scan
iwm0: fatal firmware error
iwm0: RUN -> INIT
iwm0: begin active scan
iwm0: INIT -> SCAN


Good debug output:
iwm0: hw rev 0x210, fw ver 16.242414.0, address dc:53:60:4a:b1:ea
iwm0: begin active scan
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +13 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +15 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +11 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +13 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +11 54M   ess  privacy   rsn  "Home"!
 + 88:9f:fa:0b:83:46    3   +36 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +20 54M   ess  privacy   rsn  "NETGEAR20"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +13 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +14 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +12 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +12 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +10 54M   ess  privacy   rsn  "Home"!
 - 5a:23:8c:71:c1:0c    1   +13 54M   ess       no!  rsn! "xfinitywifi"!
 + 88:9f:fa:0b:83:46    3   +38 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +20 54M   ess  privacy   rsn  "NETGEAR20"!
 - f8:e4:fb:50:3e:5b    6   +11 54M   ess  privacy   rsn  "C4NG9"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +13 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +13 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +12 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +11 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 + 88:9f:fa:0b:83:46    3   +37 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +21 54M   ess  privacy   rsn  "NETGEAR20"!
 - f8:e4:fb:50:3e:5b    6   +12 54M   ess  privacy   rsn  "C4NG9"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +14 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +11 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +10 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11    +8 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +10 54M   ess  privacy   rsn  "Home"!
 - 5a:23:8c:71:c1:0c    1   +11 54M   ess       no!  rsn! "xfinitywifi"!
 + 88:9f:fa:0b:83:46    3   +38 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +20 54M   ess  privacy   rsn  "NETGEAR20"!
 - f8:e4:fb:50:3e:5b    6   +12 54M   ess  privacy   rsn  "C4NG9"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +12 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +11 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6    +9 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +12 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +12 54M   ess  privacy   rsn  "Home"!
 + 88:9f:fa:0b:83:46    3   +30 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +20 54M   ess  privacy   rsn  "NETGEAR20"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +13 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +12 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +15 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +13 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +15 54M   ess  privacy   rsn  "Home"!
 - 5a:23:8c:71:c1:0c    1   +11 54M   ess       no!  rsn! "xfinitywifi"!
 + 88:9f:fa:0b:83:46    3   +37 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +20 54M   ess  privacy   rsn  "NETGEAR20"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: RUN -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11n
iwm0: fatal firmware error
iwm0: could not add STA (error 35)
iwm0: ASSOC -> INIT
iwm0: begin active scan
iwm0: end active scan
 - 0c:54:a5:df:e5:28    6   +13 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +11 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +13 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +13 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +10 54M   ess  privacy   rsn  "Home"!
 - 5a:23:8c:71:c1:0c    1   +11 54M   ess       no!  rsn! "xfinitywifi"!
 + 88:9f:fa:0b:83:46    3   +36 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +19 54M   ess  privacy   rsn  "NETGEAR20"!
 - f8:e4:fb:50:3e:5b    6   +10 54M   ess  privacy   rsn  "C4NG9"!
iwm0: SCAN -> AUTH
iwm0: sending auth to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: AUTH -> ASSOC
iwm0: sending assoc_req to 88:9f:fa:0b:83:46 on channel 3 mode 11g
iwm0: received msg 1/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 2/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: ASSOC -> RUN
iwm0: associated with 88:9f:fa:0b:83:46 ssid "decepticons" channel 3 start MCS 
0 short preamble long slot time HT enabled
iwm0: missed beacon threshold set to 7 beacons, beacon interval is 100 TU
iwm0: received msg 3/4 of the 4-way handshake from 88:9f:fa:0b:83:46
iwm0: sending msg 4/4 of the 4-way handshake to 88:9f:fa:0b:83:46
iwm0: begin background scan
iwm0: end background scan
 - 0c:54:a5:df:e5:28    6   +13 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +11 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +13 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +10 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +10 54M   ess  privacy   rsn  "Home"!
 - 5a:23:8c:71:c1:0c    1   +11 54M   ess       no!  rsn! "xfinitywifi"!
 - 78:f2:9e:28:ea:0e   11    +7 54M   ess  privacy   rsn  ""!
 + 88:9f:fa:0b:83:46    3   +35 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +10 54M   ess  privacy   rsn  "NETGEAR20"!
 - f8:e4:fb:50:3e:5b    6   +10 54M   ess  privacy   rsn  "C4NG9"!
iwm0: begin background scan
iwm0: end background scan
 - 0c:54:a5:df:e5:28    6   +11 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +14 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6   +11 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +10 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +15 54M   ess  privacy   rsn  "Home"!
 - 5a:23:8c:71:c1:0c    1   +11 54M   ess       no!  rsn! "xfinitywifi"!
 - 78:f2:9e:28:ea:0e   11    +7 54M   ess  privacy   rsn  ""!
 + 88:9f:fa:0b:83:46    3   +36 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +19 54M   ess  privacy   rsn  "NETGEAR20"!
 - f8:e4:fb:50:3e:5b    6    +9 54M   ess  privacy   rsn  "C4NG9"!
iwm0: begin background scan
iwm0: end background scan
 - 0c:54:a5:df:e5:28    6   +11 54M   ess  privacy   rsn  "Eric_Kira"!
 - 0c:54:a5:df:e5:2a    6   +14 54M   ess       no!  rsn! "xfinitywifi"!
 - 14:91:82:30:04:f2    6    +9 54M   ess  privacy   rsn  "Linksys07142"!
 - 48:5d:36:39:d0:6c   11   +12 54M   ess  privacy   rsn  "FiOS-U5ET6"!
 - 58:23:8c:71:c1:0a    1   +15 54M   ess  privacy   rsn  "Home"!
 - 5a:23:8c:71:c1:0c    1   +11 54M   ess       no!  rsn! "xfinitywifi"!
 - 78:f2:9e:28:ea:0d   11    +5 54M   ess  privacy   rsn! ""!
 - 78:f2:9e:28:ea:0e   11    +7 54M   ess  privacy   rsn  ""!
 + 88:9f:fa:0b:83:46    3   +35 54M   ess  privacy   rsn  "decepticons"
 - dc:ef:09:f5:88:43    1   +11 54M   ess  privacy   rsn  "NETGEAR20"!
 - f8:e4:fb:50:3e:5b    6    +5 54M   ess  privacy   rsn  "C4NG9"!

dmesg from broken kernel version followed by working kernel version:
OpenBSD 6.2-current (GENERIC.MP) #10: Wed Feb 21 21:26:27 MST 2018
    dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8277159936 (7893MB)
avail mem = 8019279872 (7647MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xccbfd000 (64 entries)
bios0: vendor LENOVO version "N10ET36W (1.15 )" date 06/19/2015
bios0: LENOVO 20CMCTO1WW
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP ASF! HPET ECDT APIC MCFG SSDT SSDT SSDT SSDT SSDT SSDT 
SSDT SSDT SSDT PCCT SSDT TCPA SSDT UEFI MSDM BATB FPDT UEFI DMAR
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP2(S4) XHCI(S3) EHC1(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpiec0 at acpi0
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.29 MHz
cpu0: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT,MELTDOWN
cpu0: 256KB 64b/line 8-way L2 cache
acpihpet0: recalibrated TSC frequency 2194920124 Hz
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.15 MHz
cpu1: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT,MELTDOWN
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.16 MHz
cpu2: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT,MELTDOWN
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.15 MHz
cpu3: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT,MELTDOWN
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 40 pins
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG_)
acpiprt2 at acpi0: bus 2 (EXP1)
acpiprt3 at acpi0: bus 3 (EXP2)
acpiprt4 at acpi0: bus -1 (EXP3)
acpicpu0 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1
acpipwrres1 at acpi0: NVP3, resource for PEG_
acpipwrres2 at acpi0: NVP2, resource for PEG_
acpitz0 at acpi0: critical temperature is 128 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
"LEN0071" at acpi0 not configured
"LEN0046" at acpi0 not configured
acpibat0 at acpi0: BAT0 model "45N1111" serial 14690 type LiP oem "SONY"
acpibat1 at acpi0: BAT1 model "45N1738" serial  3105 type LION oem "LGC"
acpiac0 at acpi0: AC unit offline
acpithinkpad0 at acpi0
"SMO1200" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"INT340F" at acpi0 not configured
acpivideo0 at acpi0: VID_
acpivout at acpivideo0 not configured
acpivideo1 at acpi0: VID_
cpu0: Enhanced SpeedStep 798 MHz: speeds: 2201, 2200, 2100, 2000, 1800, 1700, 
1600, 1500, 1300, 1200, 1100, 1000, 900, 700, 600, 500 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 5G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 5500" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1920x1080, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
azalia0 at pci0 dev 3 function 0 "Intel Core 5G HD Audio" rev 0x09: msi
xhci0 at pci0 dev 20 function 0 "Intel 9 Series xHCI" rev 0x03: msi
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 
addr 1
"Intel 9 Series MEI" rev 0x03 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel I218-LM" rev 0x03: msi, address 
50:7b:9d:54:4f:f7
azalia1 at pci0 dev 27 function 0 "Intel 9 Series HD Audio" rev 0x03: msi
azalia1: codecs: Realtek ALC292
audio0 at azalia1
ppb0 at pci0 dev 28 function 0 "Intel 9 Series PCIE" rev 0xe3: msi
pci1 at ppb0 bus 2
rtsx0 at pci1 dev 0 function 0 "Realtek RTS5227 Card Reader" rev 0x01: msi
sdmmc0 at rtsx0: 4-bit, dma
ppb1 at pci0 dev 28 function 1 "Intel 9 Series PCIE" rev 0xe3: msi
pci2 at ppb1 bus 3
iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 7265" rev 0x59, msi
ehci0 at pci0 dev 29 function 0 "Intel 9 Series USB" rev 0x03: apic 2 int 23
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 
addr 1
pcib0 at pci0 dev 31 function 0 "Intel 9 Series LPC" rev 0x03
ahci0 at pci0 dev 31 function 2 "Intel 9 Series AHCI" rev 0x03: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 1: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, Samsung SSD 850, EMT0> SCSI3 0/direct fixed 
naa.5002538d404eb48d
sd0: 476940MB, 512 bytes/sector, 976773168 sectors, thin
sd1 at scsibus1 targ 1 lun 0: <ATA, SB M2 SSD, S9FM> SCSI3 0/direct fixed 
t10.ATA_SB_M2_SSD_FF73075A080802779735
sd1: 228936MB, 512 bytes/sector, 468862128 sectors, thin
ichiic0 at pci0 dev 31 function 3 "Intel 9 Series SMBus" rev 0x03: apic 2 int 18
iic0 at ichiic0
pchtemp0 at pci0 dev 31 function 6 "Intel 9 Series Thermal" rev 0x03
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
wsmouse1 at pms0 mux 0
pms0: Synaptics clickpad, firmware 8.1, 0x1e2b1 0x943300
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
Unclaimed register detected before reading register 0x23a0
uhidev0 at uhub0 port 5 configuration 1 interface 0 "ELAN Touchscreen" rev 
2.00/0.11 addr 2
uhidev0: iclass 3/0, 68 report ids
ums0 at uhidev0 reportid 1: 1 button, tip
wsmouse2 at ums0 mux 0
uhid0 at uhidev0 reportid 2: input=64, output=0, feature=0
uhid1 at uhidev0 reportid 3: input=0, output=31, feature=0
uhid2 at uhidev0 reportid 4: input=19, output=0, feature=0
uhid3 at uhidev0 reportid 10: input=0, output=0, feature=1
ums1 at uhidev0 reportid 68
ums1: mouse has no X report
uhub2 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 
2.00/0.03 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
sd2 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
sd2: 476937MB, 512 bytes/sector, 976767473 sectors
root on sd2a (df4f7850546ee3cd.a) swap on sd2b dump on sd2b
iwm0: hw rev 0x210, fw ver 16.242414.0, address dc:53:60:4a:b1:ea
iwm0: fatal firmware error
iwm0: fatal firmware error
iwm0: fatal firmware error
iwm0: fatal firmware error
...


dmesg:
OpenBSD 6.2-current (GENERIC.MP) #1: Tue Jan 23 20:28:22 EST 2018
    
diena...@portabsd.home.kagu-tsuchi.com:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8277159936 (7893MB)
avail mem = 8019382272 (7647MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xccbfd000 (64 entries)
bios0: vendor LENOVO version "N10ET36W (1.15 )" date 06/19/2015
bios0: LENOVO 20CMCTO1WW
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP ASF! HPET ECDT APIC MCFG SSDT SSDT SSDT SSDT SSDT SSDT 
SSDT SSDT SSDT PCCT SSDT TCPA SSDT UEFI MSDM BATB FPDT UEFI DMAR
acpi0: wakeup devices LID_(S4) SLPB(S3) IGBE(S4) EXP2(S4) XHCI(S3) EHC1(S3)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpihpet0 at acpi0: 14318179 Hz
acpiec0 at acpi0
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.28 MHz
cpu0: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
acpihpet0: recalibrated TSC frequency 2194929421 Hz
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.16 MHz
cpu1: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 1, core 0, package 0
cpu2 at mainbus0: apid 2 (application processor)
cpu2: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.16 MHz
cpu2: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 1, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz, 798.16 MHz
cpu3: 
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND,NXE,PAGE1GB,RDTSCP,LONG,LAHF,ABM,3DNOWP,PERF,ITSC,FSGSBASE,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,RDSEED,ADX,SMAP,PT,SENSOR,ARAT
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 40 pins
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG_)
acpiprt2 at acpi0: bus 2 (EXP1)
acpiprt3 at acpi0: bus 3 (EXP2)
acpiprt4 at acpi0: bus -1 (EXP3)
acpicpu0 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@233 mwait.1@0x40), C2(200@148 mwait.1@0x33), 
C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for XHCI, EHC1
acpipwrres1 at acpi0: NVP3, resource for PEG_
acpipwrres2 at acpi0: NVP2, resource for PEG_
acpitz0 at acpi0: critical temperature is 128 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
"LEN0071" at acpi0 not configured
"LEN0046" at acpi0 not configured
acpibat0 at acpi0: BAT0 model "45N1111" serial 14690 type LiP oem "SONY"
acpibat1 at acpi0: BAT1 model "45N1738" serial  3105 type LION oem "LGC"
acpiac0 at acpi0: AC unit offline
acpithinkpad0 at acpi0
"SMO1200" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"INT340F" at acpi0 not configured
acpivideo0 at acpi0: VID_
acpivout at acpivideo0 not configured
acpivideo1 at acpi0: VID_
cpu0: Enhanced SpeedStep 798 MHz: speeds: 2201, 2200, 2100, 2000, 1800, 1700, 
1600, 1500, 1300, 1200, 1100, 1000, 900, 700, 600, 500 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 5G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 5500" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1920x1080, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
azalia0 at pci0 dev 3 function 0 "Intel Core 5G HD Audio" rev 0x09: msi
xhci0 at pci0 dev 20 function 0 "Intel 9 Series xHCI" rev 0x03: msi
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev 3.00/1.00 
addr 1
"Intel 9 Series MEI" rev 0x03 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel I218-LM" rev 0x03: msi, address 
50:7b:9d:54:4f:f7
azalia1 at pci0 dev 27 function 0 "Intel 9 Series HD Audio" rev 0x03: msi
azalia1: codecs: Realtek ALC292
audio0 at azalia1
ppb0 at pci0 dev 28 function 0 "Intel 9 Series PCIE" rev 0xe3: msi
pci1 at ppb0 bus 2
rtsx0 at pci1 dev 0 function 0 "Realtek RTS5227 Card Reader" rev 0x01: msi
sdmmc0 at rtsx0: 4-bit, dma
ppb1 at pci0 dev 28 function 1 "Intel 9 Series PCIE" rev 0xe3: msi
pci2 at ppb1 bus 3
iwm0 at pci2 dev 0 function 0 "Intel Dual Band Wireless AC 7265" rev 0x59, msi
ehci0 at pci0 dev 29 function 0 "Intel 9 Series USB" rev 0x03: apic 2 int 23
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 
addr 1
pcib0 at pci0 dev 31 function 0 "Intel 9 Series LPC" rev 0x03
ahci0 at pci0 dev 31 function 2 "Intel 9 Series AHCI" rev 0x03: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 1: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, Samsung SSD 850, EMT0> SCSI3 0/direct fixed 
naa.5002538d404eb48d
sd0: 476940MB, 512 bytes/sector, 976773168 sectors, thin
sd1 at scsibus1 targ 1 lun 0: <ATA, SB M2 SSD, S9FM> SCSI3 0/direct fixed 
t10.ATA_SB_M2_SSD_FF73075A080802779735
sd1: 228936MB, 512 bytes/sector, 468862128 sectors, thin
ichiic0 at pci0 dev 31 function 3 "Intel 9 Series SMBus" rev 0x03: apic 2 int 18
iic0 at ichiic0
pchtemp0 at pci0 dev 31 function 6 "Intel 9 Series Thermal" rev 0x03
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
wsmouse1 at pms0 mux 0
pms0: Synaptics clickpad, firmware 8.1, 0x1e2b1 0x943300
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
Unclaimed register detected before reading register 0x23a0
uhidev0 at uhub0 port 5 configuration 1 interface 0 "ELAN Touchscreen" rev 
2.00/0.11 addr 2
uhidev0: iclass 3/0, 68 report ids
ums0 at uhidev0 reportid 1: 1 button, tip
wsmouse2 at ums0 mux 0
uhid0 at uhidev0 reportid 2: input=64, output=0, feature=0
uhid1 at uhidev0 reportid 3: input=0, output=31, feature=0
uhid2 at uhidev0 reportid 4: input=19, output=0, feature=0
uhid3 at uhidev0 reportid 10: input=0, output=0, feature=1
ums1 at uhidev0 reportid 68
ums1: mouse has no X report
uhub2 at uhub1 port 1 configuration 1 interface 0 "Intel Rate Matching Hub" rev 
2.00/0.03 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
sd2 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006> SCSI2 0/direct fixed
sd2: 476937MB, 512 bytes/sector, 976767473 sectors
root on sd2a (df4f7850546ee3cd.a) swap on sd2b dump on sd2b
iwm0: hw rev 0x210, fw ver 16.242414.0, address dc:53:60:4a:b1:ea

usbdevs:
Controller /dev/usb0:
addr 1: super speed, self powered, config 1, xHCI root hub(0x0000), 
Intel(0x8086), rev 1.00
 port 1 disabled
 port 2 disabled
 port 3 disabled
 port 4 disabled
 port 5 addr 2: full speed, self powered, config 1, Touchscreen(0x0301), 
ELAN(0x04f3), rev 0.11
 port 6 disabled
 port 7 disabled
 port 8 disabled
 port 9 disabled
 port 10 disabled
 port 11 disabled
 port 12 disabled
 port 13 disabled
 port 14 disabled
 port 15 disabled
Controller /dev/usb1:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000), 
Intel(0x8086), rev 1.00
 port 1 addr 2: high speed, self powered, config 1, Rate Matching Hub(0x8001), 
Intel(0x8087), rev 0.03
  port 1 powered
  port 2 powered
  port 3 powered
  port 4 powered
  port 5 powered
  port 6 powered
  port 7 powered
  port 8 powered
 port 2 powered
 port 3 powered

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