iwn: firmware error

[Peter Ankerstål]

I have noticed a problem with the iwn firmware.

On the client side I have these settings:
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         ether f0:de:f1:c9:14:4d
         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
         media: IEEE 802.11 Wireless Ethernet MCS mode 11na
         status: associated
         ssid web channel 56 (5280 MHz 11a ht/40-) bssid 04:f0:21:01:3d:87
         country US authmode WPA2/802.11i privacy ON deftxkey UNDEF
         AES-CCM 3:128-bit txpower 14 bmiss 10 mcastrate 6 mgmtrate 6
         scanvalid 60 bgscan bgscanintvl 300 bgscanidle 250 roam:rssi 7
         roam:rate 64 ampdulimit 64k ampdudensity 8 -amsdutx amsdurx shortgi
         wme roaming MANUAL

wpa_conf:
---
         ctrl_interface=/var/run/wpa_supplicant
         eapol_version=1
         ap_scan=1
         fast_reauth=1

network={
        ssid="web"
        key_mgmt=WPA-PSK
        psk=""
        priority=1
---

It first associates but then  after some traffic the card turns off with thse messages:
iwn0: iwn_intr: fatal firmware error
firmware error log:
   error type      = "UNKNOWN" (0x00002078)
   program counter = 0x00009758
   source line     = 0x0000063D
   error data      = 0x400080300000E90F
   branch link     = 0x000096CE000096CE
   interrupt link  = 0x0000D6BE00000000
   time            = 2154208510
driver status:
   tx ring  0: qid=0  cur=66  queued=0
   tx ring  1: qid=1  cur=0   queued=0
   tx ring  2: qid=2  cur=0   queued=0
   tx ring  3: qid=3  cur=8   queued=0
   tx ring  4: qid=4  cur=161 queued=0
   tx ring  5: qid=5  cur=0   queued=0
   tx ring  6: qid=6  cur=0   queued=0
   tx ring  7: qid=7  cur=0   queued=0
   tx ring  8: qid=8  cur=0   queued=0
   tx ring  9: qid=9  cur=0   queued=0
   tx ring 10: qid=10 cur=65  queued=0
   tx ring 11: qid=11 cur=0   queued=0
   tx ring 12: qid=12 cur=0   queued=0
   tx ring 13: qid=13 cur=0   queued=0
   tx ring 14: qid=14 cur=0   queued=0
   tx ring 15: qid=15 cur=0   queued=0
   tx ring 16: qid=16 cur=0   queued=0
   tx ring 17: qid=17 cur=0   queued=0
   tx ring 18: qid=18 cur=0   queued=0
   tx ring 19: qid=19 cur=0   queued=0
   rx ring: cur=50

On the accesspoint I have:
wlan0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric
0 mtu 1500
         ether 04:f0:21:01:3d:87
         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
         media: IEEE 802.11 Wireless Ethernet autoselect mode 11na <hostap>
         status: running
         ssid web channel 56 (5280 MHz 11a ht/40-) bssid 04:f0:21:01:3d:87
         regdomain ETSI country SE ecm authmode WPA2/802.11i privacy MIXED
         deftxkey 3 AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 24
mcastrate 6
         mgmtrate 6 scanvalid 60 -ht ampdulimit 64k ampdudensity 8
shortgi wme
         burst dtimperiod 1 -dfs

hostapd.conf:
---
interface=wlan0
driver=bsd
debug=0
logger_syslog=1
logger_syslog_level=0
ctrl_interface=/var/run/hostapd
ctrl_interface_group=wheel
ssid=web
wpa=2
wpa_passphrase=
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP TKIP
rsn_pairwise=CCMP
---


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