[Bug 213456] Problem with iwn firmware on 11-RELEASE

Thu Oct 13 17:39:48 UTC 2016

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=213456

Joseph Mingrone <jrm at freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jrm at freebsd.org

--- Comment #3 from Joseph Mingrone <jrm at freebsd.org> ---
I've also seen it take longer to establish a connection after upgrading to 11. 
This is on a Lenovo X220 and a T530.

We have switched to the 5 GHz band at home, but I recall testing with all
things the same as before the upgrade and still seeing the problem.

Once the connection is established it is stable [1].

Here is partial output from /var/run/dmesg.boot on the T530:

iwn0: <Intel Centrino Advanced-N 6205> mem 0xf1c00000-0xf1c01fff irq 17 at
device 0.0 on pci2
...
iwn0: iwn_read_firmware: ucode rev=0x12a80601
wlan0: link state changed to UP
wlan0: link state changed to DOWN
iwn0: scan timeout
iwn0: iwn_read_firmware: ucode rev=0x12a80601
wlan0: link state changed to UP
iwn0: iwn_intr: fatal firmware error
firmware error log:
  error type      = "UNKNOWN" (0x00000038)
  program counter = 0x00009918
  source line     = 0x000003C4
  error data      = 0x0000000000000000
  branch link     = 0x0000991400009914
  interrupt link  = 0x0000D6BE00000000
  time            = 3538
driver status:
  tx ring  0: qid=0  cur=0   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=2   queued=0  
  tx ring  4: qid=4  cur=0   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=66  queued=0  
  tx ring 10: qid=10 cur=0   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=46
iwn0: iwn_panicked: controller panicked, iv_state = 5; restarting
wlan0: link state changed to DOWN
iwn0: iwn_read_firmware: ucode rev=0x12a80601
wlan0: link state changed to UP
iwn0: iwn_intr: fatal firmware error
firmware error log:
  error type      = "UNKNOWN" (0x00000038)
  program counter = 0x00009918
  source line     = 0x000003C4
  error data      = 0x0000000000000000
  branch link     = 0x0000991400009914
  interrupt link  = 0x0000D6BE00000000
  time            = 27953
driver status:
  tx ring  0: qid=0  cur=0   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=3   queued=0  
  tx ring  4: qid=4  cur=0   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=92  queued=0  
  tx ring 10: qid=10 cur=0   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=33
iwn0: iwn_panicked: controller panicked, iv_state = 5; restarting
wlan0: link state changed to DOWN
iwn0: iwn_read_firmware: ucode rev=0x12a80601
wlan0: link state changed to UP

Here is partial output from ifconfig (home network):

wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 84:3a:xx:xx:xx:xx
        inet 192.168.2.5 netmask 0xffffff00 broadcast 192.168.2.255
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: IEEE 802.11 Wireless Ethernet MCS mode 11na
        status: associated
        ssid trp-5 channel 157 (5785 MHz 11a ht/40+) bssid 4c:xx:xx:xx:xx:xx
        regdomain FCC country US authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 23 bmiss 10 mcastrate 6
        mgmtrate 6 scanvalid 60 ampdulimit 64k ampdudensity 4 -amsdutx amsdurx
        shortgi -stbc wme roaming MANUAL
        groups: wlan

[1]   As an aside, at work, the wireless network uses WPA-EAP.  Before 11, the
connection would drop so often it was not usable, but things seem to have
greatly improved in 11.  Thanks!

Partial ifconfig output (work):
wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        ether 8c:xx:xx:xx:xx:xx
        inet 134.xxx.xxx.xxx netmask 0xfffffe00 broadcast 134.xxx.xxx.255
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
        media: IEEE 802.11 Wireless Ethernet MCS mode 11ng
        status: associated
        ssid Dal-WPA2 channel 11 (2462 MHz 11g ht/20) bssid 00:xx:xx:xx:xx:xx
        regdomain FCC country US authmode WPA2/802.11i privacy ON
        deftxkey UNDEF AES-CCM 2:128-bit txpower 30 bmiss 10 scanvalid 60
        protmode CTS ampdulimit 64k ampdudensity 8 -amsdutx amsdurx shortgi
        -stbc wme roaming MANUAL
        groups: wlan

/etc/wpa_supplicant.conf (work):

network={
        ssid="Dal-WPA2"
        key_mgmt=WPA-EAP
        pairwise=CCMP
        group=CCMP TKIP
        eap=PEAP
        ca_cert="/usr/local/share/certs/ca-root-nss.crt"
        identity="xxx"
        subject_match="network-authentication.dal.ca"
        #phase1="peaplabel=0"
        phase2="auth=MSCHAPV2"
        password="xxx"
}

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