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Date:      Tue, 28 Jan 2014 15:57:01 -0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        Kevin Oberman <rkoberman@gmail.com>
Cc:        freebsd-wireless@freebsd.org, FreeBSD Stable Mailing List <freebsd-stable@freebsd.org>, Lars Engels <lars.engels@0x20.net>
Subject:   Re: IWN hangs periodically on 10.0RC3
Message-ID:  <CAJ-VmonUjdDQpshS6kc-h9a7LutZLrAXTtZeavEp296ncx=k_g@mail.gmail.com>
In-Reply-To: <CAN6yY1sh_yrngFAgkR9fxuASF6S6XpnAfkUOQS3xadto8z=Mrw@mail.gmail.com>
References:  <CAN6yY1ujxmUBo-jt8QRa6ozRk8otSX-4LHGum=4na9ObkEGxXQ@mail.gmail.com> <e630ae96669b34cc3f2ba0efadee9aa1@mail.0x20.net> <CAJ-Vmo=mKRTR6vzCUUA5cR8rHDhnhcUcQj1DFCnkPwqqb6PBHg@mail.gmail.com> <CAN6yY1vhP1gQENAPPicxAwBTQ5nXBJRw9ZobDJc=sw8NnFUBpA@mail.gmail.com> <CAN6yY1sh_yrngFAgkR9fxuASF6S6XpnAfkUOQS3xadto8z=Mrw@mail.gmail.com>

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What's in dmesg? Did the firmware panic?

Adrian
On Jan 28, 2014 2:16 AM, "Kevin Oberman" <rkoberman@gmail.com> wrote:

> On Fri, Jan 10, 2014 at 9:51 PM, Kevin Oberman <rkoberman@gmail.com>wrote:
>
>> On Fri, Jan 10, 2014 at 9:37 AM, Adrian Chadd <adrian@freebsd.org> wrote:
>>
>>> .. when you see it hang, does anything get logged in dmesg (eg a
>>> firmware panic) ?
>>>
>>> Try recompiling your kernel with:
>>>
>>> IEEE80211_DEBUG
>>> IWN_DEBUG
>>>
>>> That way it can be debugged :)
>>>
>>> The first thing I'd check is whether there's more fun races going on
>>> in the crypto code - try wlandebug +crypto .
>>>
>>>
>>> -a
>>>
>>
>> I just sent a message about issues I am seeing with my IWN to wireless@.
>> Then I saw these responses. Sorry.
>>
>> As far as logs go, I wee a number if cases of the following sequence:
>> Jan  1 18:00:12 rogue dbus[1451]: [system] Activating service
>> name='org.freedesktop.PackageKit' (using servicehelper)
>> Jan  1 18:00:12 rogue dbus[1451]: [system] Successfully activated service
>> 'org.freedesktop.PackageKit'
>> Jan  1 18:28:56 rogue wpa_supplicant[620]: wlan0: CTRL-EVENT-DISCONNECTED
>> bssid=00:26:b8:67:c3:2d reason=0
>> Jan  1 18:28:56 rogue kernel: wlan0: link state changed to DOWN
>> Jan  1 18:28:59 rogue wpa_supplicant[620]: wlan0: Trying to associate
>> with 00:26:b8:67:c3:2d (SSID='babcom' freq=2437 MHz)
>> Jan  1 18:28:59 rogue wpa_supplicant[620]: wlan0: Associated with
>> 00:26:b8:67:c3:2d
>> Jan  1 18:28:59 rogue kernel: wlan0: link state changed to UP
>> Jan  1 18:28:59 rogue dhclient[652]: send_packet: No buffer space
>> available
>> Jan  1 18:28:59 rogue devd: Executing '/etc/rc.d/dhclient quietstart
>> wlan0'
>> Jan  1 18:28:59 rogue wpa_supplicant[620]: wlan0: WPA: Key negotiation
>> completed with 00:26:b8:67:c3:2d [PTK=CCMP GTK=CCMP]
>> Jan  1 18:28:59 rogue wpa_supplicant[620]: wlan0: CTRL-EVENT-CONNECTED -
>> Connection to 00:26:b8:67:c3:2d completed [id=1 id_str=]
>> Jan  1 18:29:02 rogue dhclient: New IP Address (wlan0): 192.168.1.5
>> Jan  1 18:29:02 rogue dhclient: New Subnet Mask (wlan0): 255.255.255.0
>> Jan  1 18:29:02 rogue dhclient: New Broadcast Address (wlan0):
>> 192.168.1.255
>> Jan  1 18:29:02 rogue dhclient: New Routers (wlan0): 192.168.1.1
>>
>> So it seems that the bounce is happening fairly often, but the system
>> usually recovers. It seems to be pretty consistently 2-3 time4s a day.
>> Note that the dbus messages about packagekit always immediately precede
>> the link going down.
>>
>> Every tthe or four of these fail to recover:
>> Jan  3 14:09:05 rogue kernel: wlan0: link state changed to DOWN
>> Jan  3 14:09:56 rogue ntpd[1303]: sendto(198.129.254.218) (fd=25):
>> Network is down
>> Jan  3 14:10:15 rogue ntpd[1303]: sendto(208.79.18.86) (fd=25): Network
>> is down
>> Jan  3 14:10:29 rogue ntpd[1303]: sendto(198.124.252.90) (fd=25): Network
>> is down
>> Jan  3 14:10:49 rogue ntpd[1303]: sendto(198.55.111.5) (fd=25): Network
>> is down
>> Jan  3 14:11:00 rogue ntpd[1303]: sendto(192.95.38.104) (fd=25): Network
>> is down
>> Jan  3 14:14:02 rogue ntpd[1303]: sendto(198.129.252.38) (fd=25): Network
>> is down
>> Jan  3 14:14:12 rogue wpa_supplicant[620]: ioctl[SIOCS80211, op=26,
>> val=0, arg_len=0]: Operation not supported
>> Jan  3 14:14:12 rogue wpa_supplicant[620]: ioctl[SIOCS80211, op=26,
>> val=0, arg_len=0]: Operation not supported
>> Jan  3 14:14:12 rogue wpa_supplicant[620]: wlan0: CTRL-EVENT-TERMINATING
>> Jan  3 14:14:12 rogue dhclient[652]: connection closed
>> Jan  3 14:14:12 rogue dhclient[652]: exiting.
>> Jan  3 14:14:12 rogue wpa_supplicant[67153]: Successfully initialized
>> wpa_supplicant
>> Jan  3 14:14:16 rogue wpa_supplicant[67154]: wlan0: Trying to associate
>> with 00:26:b8:67:c3:2d (SSID='babcom' freq=2437 MHz)
>> Jan  3 14:14:16 rogue wpa_supplicant[67154]: wlan0: Associated with
>> 00:26:b8:67:c3:2d
>> Jan  3 14:14:16 rogue kernel: wlan0: link state changed to UP
>> Jan  3 14:14:16 rogue devd: Executing '/etc/rc.d/dhclient quietstart
>> wlan0'
>> Jan  3 14:14:16 rogue dhclient[67191]: send_packet: No buffer space
>> available
>> Jan  3 14:14:17 rogue wpa_supplicant[67154]: wlan0: WPA: Key negotiation
>> completed with 00:26:b8:67:c3:2d [PTK=CCMP GTK=CCMP]
>> Jan  3 14:14:17 rogue wpa_supplicant[67154]: wlan0: CTRL-EVENT-CONNECTED
>> - Connection to 00:26:b8:67:c3:2d completed [id=1 id_str=]
>> Jan  3 14:14:18 rogue dhclient: New IP Address (wlan0): 192.168.1.5
>> Jan  3 14:14:18 rogue dhclient: New Subnet Mask (wlan0): 255.255.255.0
>> Jan  3 14:14:18 rogue dhclient: New Broadcast Address (wlan0):
>> 192.168.1.255
>> Jan  3 14:14:18 rogue dhclient: New Routers (wlan0): 192.168.1.1
>>
>> The restart took place when I restarted the interface about 5 minutes
>> after it went down and, as you can see, it came up normally. I'll admit
>> that I am completely baffled by the dbus/packagekit tie-in as I can't see
>> what packagekit would do to touch the network.
>>
>> I'll be building a new kernel with debug shortly.
>>
>> In my other message (to wireless) I also mentioned the (possibly
>> unrelated) issue of poor performance and and periodic sub-second
>> connectivity drops.
>>
>> --
>> R. Kevin Oberman, Network Engineer, Retired
>> E-mail: rkoberman@gmail.com
>>
>
> I was about to send a report that removing bgscan fixed the issue, but,
> then it happened again. Nothing new in the log from prior cases. Any other
> flags to I should try to set in wlandebug? state? assoc? I'll admit that I
> have no idea which might be helpful.
>
> One thing I seem to have failed to post is the ifconfig after the failure:
> wlan0: flags=8c43<UP,BROADCAST,RUNNING,OACTIVE,SIMPLEX,MULTICAST> metric 0
> mtu 1500
>     ether a0:88:b4:c6:ad:28
>     inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255
>     nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
>     media: IEEE 802.11 Wireless Ethernet autoselect (autoselect)
>     status: no carrier
>     ssid "" channel 7 (2442 MHz 11g)
>     country US authmode WPA1+WPA2/802.11i privacy ON deftxkey UNDEF
>     txpower 15 bmiss 10 scanvalid 60 protmode CTS wme roaming MANUAL
>
> Note: My AP is on channel 6.
> --
> R. Kevin Oberman, Network Engineer, Retired
> E-mail: rkoberman@gmail.com
>



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