ath9k driver in kernel 2.6.33 problems

ath9k driver in kernel 2.6.33 problems

[Rainer Koschnick]

Hi,

I've been trying to use the last couple of 2.6.33 RCs up to rc3-git2 and
am experiencing connection issues with the ath9k driver.  It used to be
broken for me in kernel 2.6.31 (haven't tried earlier), then was
rock-solid in 2.6.32 and now it's broken again.  I can connect to my
300mbit router--which is in the same room--without problems, but after a
while the connection breaks.

Jan  7 22:36:27 gentoo kernel: [    5.819124] ath9k 0000:03:00.0: PCI
INT A -> GSI 18 (level, low) -> IRQ 18
Jan  7 22:36:27 gentoo kernel: [    5.819137] ath9k 0000:03:00.0:
setting latency timer to 64
Jan  7 22:36:27 gentoo kernel: [    5.869898] ath: EEPROM regdomain: 0x60
Jan  7 22:36:27 gentoo kernel: [    5.869900] ath: EEPROM indicates we
should expect a direct regpair map
Jan  7 22:36:27 gentoo kernel: [    5.869906] ath: Country alpha2 being
used: 00
Jan  7 22:36:27 gentoo kernel: [    5.869907] ath: Regpair used: 0x60
Jan  7 22:36:27 gentoo kernel: [    5.874261] phy0: Selected rate
control algorithm 'ath9k_rate_control'
Jan  7 22:36:27 gentoo kernel: [    5.875006] Registered led device:
ath9k-phy0::radio
Jan  7 22:36:27 gentoo kernel: [    5.875025] Registered led device:
ath9k-phy0::assoc
Jan  7 22:36:27 gentoo kernel: [    5.875074] Registered led device:
ath9k-phy0::tx
Jan  7 22:36:27 gentoo kernel: [    5.875098] Registered led device:
ath9k-phy0::rx
Jan  7 22:36:27 gentoo kernel: [    5.875113] phy0: Atheros AR9285 Rev:2
mem=0xffffc90011100000, irq=18

Jan  7 22:36:27 gentoo kernel: [   11.287482] ADDRCONF(NETDEV_UP):
wlan0: link is not ready
Jan  7 22:36:27 gentoo kernel: [   12.179291] Adding 8000328k swap on
/dev/sda5.  Priority:-1 extents:1 across:8000328k
Jan  7 22:36:27 gentoo kernel: [   13.014980] ath9k: Two wiphys trying
to scan at the same time
Jan  7 22:36:27 gentoo kernel: [   13.217106] wlan0: direct probe to AP
00:1f:3f:d3:4d:2a (try 1)
Jan  7 22:36:27 gentoo kernel: [   13.221958] wlan0: direct probe responded
Jan  7 22:36:27 gentoo kernel: [   13.221965] wlan0: authenticate with
AP 00:1f:3f:d3:4d:2a (try 1)
Jan  7 22:36:27 gentoo kernel: [   13.225266] wlan0: authenticated
Jan  7 22:36:27 gentoo kernel: [   13.225304] wlan0: associate with AP
00:1f:3f:d3:4d:2a (try 1)
Jan  7 22:36:27 gentoo kernel: [   13.229132] wlan0: RX AssocResp from
00:1f:3f:d3:4d:2a (capab=0x431 status=0 aid=1)
Jan  7 22:36:27 gentoo kernel: [   13.229137] wlan0: associated
Jan  7 22:36:27 gentoo kernel: [   13.237383] ADDRCONF(NETDEV_CHANGE):
wlan0: link becomes ready
Jan  7 22:36:27 gentoo dhcpcd: version 5.1.4 starting
Jan  7 22:36:27 gentoo dhcpcd: wlan0: rebinding lease of 192.168.1.120
Jan  7 22:36:31 gentoo dhcpcd: wlan0: reject NAK
Jan  7 22:36:37 gentoo kernel: [   24.189064] wlan0: no IPv6 routers present
Jan  7 22:36:37 gentoo dhcpcd: wlan0: broadcasting for a lease
Jan  7 22:36:37 gentoo dhcpcd: wlan0: offered 192.168.1.120 from 192.168.1.1
Jan  7 22:36:42 gentoo dhcpcd: wlan0: acknowledged 192.168.1.120 from
192.168.1.1
Jan  7 22:36:42 gentoo dhcpcd: wlan0: checking for 192.168.1.120
Jan  7 22:36:47 gentoo dhcpcd: wlan0: leased 192.168.1.120 for 864000
seconds
Jan  7 22:36:47 gentoo dhcpcd: forking to background

Jan  8 00:07:19 gentoo kernel: [ 5466.181635] wlan0: deauthenticated
from 00:1f:3f:d3:4d:2a (Reason: 2)
Jan  8 00:07:19 gentoo dhcpcd: wlan0: carrier lost
Jan  8 00:07:19 gentoo wpa_cli: interface wlan0 DISCONNECTED
Jan  8 00:07:21 gentoo kernel: [ 5467.472581] wlan0: direct probe to AP
00:1f:3f:d3:4d:2a (try 1)
Jan  8 00:07:21 gentoo kernel: [ 5467.477331] wlan0: direct probe responded
Jan  8 00:07:21 gentoo kernel: [ 5467.477338] wlan0: authenticate with
AP 00:1f:3f:d3:4d:2a (try 1)
Jan  8 00:07:21 gentoo kernel: [ 5467.480769] wlan0: authenticated
Jan  8 00:07:21 gentoo kernel: [ 5467.480802] wlan0: associate with AP
00:1f:3f:d3:4d:2a (try 1)
Jan  8 00:07:21 gentoo kernel: [ 5467.484611] wlan0: RX ReassocResp from
00:1f:3f:d3:4d:2a (capab=0x431 status=0 aid=1)
Jan  8 00:07:21 gentoo kernel: [ 5467.484616] wlan0: associated
Jan  8 00:07:21 gentoo dhcpcd: wlan0: carrier acquired
Jan  8 00:07:21 gentoo dhcpcd: wlan0: rebinding lease of 192.168.1.120
Jan  8 00:07:21 gentoo dhcpcd: wlan0: reject NAK
Jan  8 00:07:24 gentoo dhcpcd: received SIGTERM, stopping
Jan  8 00:07:24 gentoo dhcpcd: wlan0: removing interface
Jan  8 00:07:24 gentoo wpa_cli: interface wlan0 CONNECTED
Jan  8 00:07:24 gentoo dhcpcd: version 5.1.4 starting
Jan  8 00:07:24 gentoo dhcpcd: wlan0: rebinding lease of 192.168.1.120
Jan  8 00:07:24 gentoo dhcpcd: wlan0: reject NAK
Jan  8 00:07:28 gentoo dhcpcd: wlan0: reject NAK
Jan  8 00:07:32 gentoo dhcpcd: wlan0: reject NAK
Jan  8 00:07:34 gentoo dhcpcd: wlan0: broadcasting for a lease
Jan  8 00:07:34 gentoo dhcpcd: wlan0: offered 192.168.1.120 from 192.168.1.1
Jan  8 00:07:34 gentoo dhcpcd: wlan0: acknowledged 192.168.1.120 from
192.168.1.1
Jan  8 00:07:34 gentoo dhcpcd: wlan0: checking for 192.168.1.120
Jan  8 00:07:40 gentoo dhcpcd: wlan0: leased 192.168.1.120 for 864000
seconds
Jan  8 00:07:40 gentoo dhcpcd: forking to background

Is there anything else I could log?

Regards,
Rainer

ath9k driver in kernel 2.6.33 problems

[Sujith]

Rainer Koschnick wrote:
> Hi,
> 
> I've been trying to use the last couple of 2.6.33 RCs up to rc3-git2 and
> am experiencing connection issues with the ath9k driver.  It used to be
> broken for me in kernel 2.6.31 (haven't tried earlier), then was
> rock-solid in 2.6.32 and now it's broken again.  I can connect to my
> 300mbit router--which is in the same room--without problems, but after a
> while the connection breaks.

You could build the driver with CONFIG_ATH_DEBUG=y and CONFIG_ATH9K_DEBUGFS=y
and post the log, along with the contents of 'rcstat' and 'interrupt' debugfs files.

See: http://wireless.kernel.org/en/users/Drivers/ath9k/debug

Sujith

Re: ath9k driver in kernel 2.6.33 problems

[Rainer Koschnick]

On 01/08/10 05:30, Sujith wrote:
> Rainer Koschnick wrote:
>> Hi,
>>
>> I've been trying to use the last couple of 2.6.33 RCs up to rc3-git2 and
>> am experiencing connection issues with the ath9k driver.  It used to be
>> broken for me in kernel 2.6.31 (haven't tried earlier), then was
>> rock-solid in 2.6.32 and now it's broken again.  I can connect to my
>> 300mbit router--which is in the same room--without problems, but after a
>> while the connection breaks.
> 
> You could build the driver with CONFIG_ATH_DEBUG=y and CONFIG_ATH9K_DEBUGFS=y
> and post the log, along with the contents of 'rcstat' and 'interrupt' debugfs files.
> 
> See: http://wireless.kernel.org/en/users/Drivers/ath9k/debug
> 
> Sujith
> --
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> 

Hi,

I have uploaded the requested information to my server, it's rather big
so I don't want to post it here.

http://arkay.de/temp/ath9k_debug.tar.bz

Since the messages file is around 1GB I have extracted a couple of time
ranges.  First I had a disconnect (messages.reconnect... dhcpcd
complained at 20:47:24) , then later the network connection just hang
for a minute or two.  I was transferring a big file from a LAN server,
must have happened somewhere around 21:08 or 09 (messages.hang).  The
transfer just hang... neither the web nor ping worked.

I still have the messages file saved should anything be missing, I have
now turned debugging off since I don't have that much space on my
notebook :)

Thanks,
Rainer