From: "Stefan Lippers-Hollmann" <s.L-H@gmx.de>
To: linux-wireless@vger.kernel.org
Subject: Re: Disassociating atheros wlan with 2.6.31
Date: Thu, 24 Sep 2009 21:55:46 +0200
Cc: "Justin P. Mattock" <justinmattock@gmail.com>,
	Kristoffer Ericson <kristoffer.ericson@gmail.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
References: <20090924121617.c0c7222d.kristoffer.ericson@gmail.com> <4ABBB9D3.4020200@gmail.com>
In-Reply-To: <4ABBB9D3.4020200@gmail.com>
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Message-Id: <200909242155.49890.s.L-H@gmx.de>
Sender: linux-wireless-owner@vger.kernel.org

Hi

CCing linux-wireless@vger.kernel.org, as it's not very likely to get 
noticed here by wireless developers.

On Thursday 24 September 2009, Justin P. Mattock wrote:
> Kristoffer Ericson wrote:
> > Greetings,
> >
> > When moving from vanilla 2.6.30->2.6.31 I noticed that I get dissasociated from
> > my wlan hub with regular intervalls. This did not happen on 2.6.30.
> > I cant see any pattern aside from that it happens at regular intervalls
> > (around 10-15mins). It works again when I re-identifies myself.
> >
> > Got an Asus 1000HE with Atheros chipset.
> > Havent had time to bisect it, just wanted to check
> > if this is an known issue. Ive ruled out faulty wlan hub
> > since everything works fine when going back to 2.6.30.
> >
> > nothing much on dmesg:
> > uhci_hcd 0000:00:1d.1: UHCI Host Controller
> > uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
> > uhci_hcd 0000:00:1d.1: irq 19, io base 0x0000d480
> > usb usb3: configuration #1 chosen from 1 choice
> > hub 3-0:1.0: USB hub found
> > hub 3-0:1.0: 2 ports detected
> > uhci_hcd 0000:00:1d.2: PCI INT C ->  GSI 18 (level, low) ->  IRQ 18
> > uhci_hcd 0000:00:1d.2: setting latency timer to 64
> > uhci_hcd 0000:00:1d.2: UHCI Host Controller
> > uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
> > uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000d800
> > usb usb4: configuration #1 chosen from 1 choice
> > hub 4-0:1.0: USB hub found
> > hub 4-0:1.0: 2 ports detected
> > uhci_hcd 0000:00:1d.3: PCI INT D ->  GSI 16 (level, low) ->  IRQ 16
> > uhci_hcd 0000:00:1d.3: setting latency timer to 64
> > uhci_hcd 0000:00:1d.3: UHCI Host Controller
> > uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 5
> > uhci_hcd 0000:00:1d.3: irq 16, io base 0x0000d880
> > usb usb5: configuration #1 chosen from 1 choice
> > hub 5-0:1.0: USB hub found
> > hub 5-0:1.0: 2 ports detected
> > input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input7
> > usb 1-4: new high speed USB device using ehci_hcd and address 3
> > usb 1-4: configuration #1 chosen from 1 choice
> > hub 1-4:1.0: USB hub found
> > hub 1-4:1.0: 4 ports detected
> > usb 1-5: new high speed USB device using ehci_hcd and address 4
> > usb 1-5: configuration #1 chosen from 1 choice
> > usb 1-8: new high speed USB device using ehci_hcd and address 6
> > usb 1-8: configuration #1 chosen from 1 choice
> > Initializing USB Mass Storage driver...
> > scsi4 : SCSI emulation for USB Mass Storage devices
> > usbcore: registered new interface driver usb-storage
> > USB Mass Storage support registered.
> > usb-storage: device found at 4
> > usb-storage: waiting for device to settle before scanning
> > HDA Intel 0000:00:1b.0: PCI INT A ->  GSI 16 (level, low) ->  IRQ 16
> > HDA Intel 0000:00:1b.0: setting latency timer to 64
> > usb 2-2: new full speed USB device using uhci_hcd and address 2
> > ath9k 0000:01:00.0: PCI INT A ->  GSI 19 (level, low) ->  IRQ 19
> > ath9k 0000:01:00.0: setting latency timer to 64
> > usb 2-2: configuration #1 chosen from 1 choice
> > input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:1b.0/input/input8
> > usbcore: registered new interface driver usbserial
> > USB Serial support registered for generic
> > usb 5-1: new full speed USB device using uhci_hcd and address 2
> > usb 5-1: configuration #1 chosen from 1 choice
> > usb 1-4.1: new full speed USB device using ehci_hcd and address 7
> > ath: EEPROM regdomain: 0x60
> > ath: EEPROM indicates we should expect a direct regpair map
> > ath: Country alpha2 being used: 00
> > ath: Regpair used: 0x60
> > Bluetooth: Core ver 2.15
> > NET: Registered protocol family 31
> > Bluetooth: HCI device and connection manager initialized
> > Bluetooth: HCI socket layer initialized
> > Bluetooth: Generic Bluetooth USB driver ver 0.5
> > usb 1-4.1: configuration #1 chosen from 1 choice
> > usb 1-4.2: new low speed USB device using ehci_hcd and address 8
> > usb 1-4.2: configuration #1 chosen from 1 choice
> > usb 1-4.4: new low speed USB device using ehci_hcd and address 9
> > usbcore: registered new interface driver hiddev
> > input: HID 04d9:1203 as /devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.2/1-4.2:1.0/input/input9
> > generic-usb 0003:04D9:1203.0001: input,hidraw0: USB HID v1.11 Keyboard [HID 04d9:1203] on usb-0000:00:1d.7-4.2/input0
> > input: HID 04d9:1203 as /devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.2/1-4.2:1.1/input/input10
> > generic-usb 0003:04D9:1203.0002: input,hidraw1: USB HID v1.11 Device [HID 04d9:1203] on usb-0000:00:1d.7-4.2/input1
> > usbcore: registered new interface driver usbhid
> > usbhid: v2.6:USB HID core driver
> > usb 1-4.4: configuration #1 chosen from 1 choice
> > input: B16_b_02 USB-PS/2 Optical Mouse as /devices/pci0000:00/0000:00:1d.7/usb1/1-4/1-4.4/1-4.4:1.0/input/input11
> > generic-usb 0003:046D:C025.0003: input,hidraw2: USB HID v1.10 Mouse [B16_b_02 USB-PS/2 Optical Mouse] on usb-0000:00:1d.7-4.4/input0
> > usbcore: registered new interface driver btusb
> > usbcore: registered new interface driver usbserial_generic
> > usbserial: USB Serial Driver core
> > USB Serial support registered for GSM modem (1-port)
> > option 2-2:1.0: GSM modem (1-port) converter detected
> > usb 2-2: GSM modem (1-port) converter now attached to ttyUSB0
> > option 2-2:1.1: GSM modem (1-port) converter detected
> > usb 2-2: GSM modem (1-port) converter now attached to ttyUSB1
> > usbcore: registered new interface driver option
> > option: v0.7.2:USB Driver for GSM modems
> > USB Serial support registered for pl2303
> > pl2303 1-4.1:1.0: pl2303 converter detected
> > usb 1-4.1: pl2303 converter now attached to ttyUSB2
> > usbcore: registered new interface driver pl2303
> > pl2303: Prolific PL2303 USB to serial adaptor driver
> > phy0: Selected rate control algorithm 'ath9k_rate_control'
> > Registered led device: ath9k-phy0::radio
> > Registered led device: ath9k-phy0::assoc
> > Registered led device: ath9k-phy0::tx
> > Registered led device: ath9k-phy0::rx
> > phy0: Atheros AR9280 MAC/BB Rev:2 AR5133 RF Rev:d0: mem=0xf8880000, irq=19
> > scsi 4:0:0:0: Direct-Access     Single   Flash Reader     1.00 PQ: 0 ANSI: 0
> > sd 4:0:0:0: Attached scsi generic sg1 type 0
> > sd 4:0:0:0: [sdb] 15954944 512-byte logical blocks: (8.16 GB/7.60 GiB)
> > usb-storage: device scan complete
> > sd 4:0:0:0: [sdb] Write Protect is off
> > sd 4:0:0:0: [sdb] Mode Sense: 03 00 00 00
> > sd 4:0:0:0: [sdb] Assuming drive cache: write through
> > sd 4:0:0:0: [sdb] Assuming drive cache: write through
> >   sdb: sdb1
> > sd 4:0:0:0: [sdb] Assuming drive cache: write through
> > sd 4:0:0:0: [sdb] Attached SCSI removable disk
> > EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
> > EXT3 FS on sda1, internal journal
> > Bluetooth: L2CAP ver 2.13
> > Bluetooth: L2CAP socket layer initialized
> > Bluetooth: SCO (Voice Link) ver 0.6
> > Bluetooth: SCO socket layer initialized
> > Bluetooth: BNEP (Ethernet Emulation) ver 1.3
> > Bridge firewalling registered
> > Bluetooth: RFCOMM TTY layer initialized
> > Bluetooth: RFCOMM socket layer initialized
> > Bluetooth: RFCOMM ver 1.11
> > ATL1E 0000:03:00.0: irq 27 for MSI/MSI-X
> > fuse init (API version 7.12)
> > ip_tables: (C) 2000-2006 Netfilter Core Team
> > nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
> > CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use
> > nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or
> > sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
> > wlan0: authenticate with AP 00:14:7c:ae:d1:90
> > wlan0: authenticated
> > wlan0: associate with AP 00:14:7c:ae:d1:90
> > wlan0: RX AssocResp from 00:14:7c:ae:d1:90 (capab=0x431 status=0 aid=5)
> > wlan0: associated
> > PPP generic driver version 2.4.2
> > NET: Registered protocol family 10
> > lo: Disabled Privacy Extensions
> > ADDRCONF(NETDEV_UP): eth0: link is not ready
> > PPP BSD Compression module registered
> > PPP Deflate Compression module registered
> > wlan0: no IPv6 routers present
> > CE: hpet increasing min_delta_ns to 15000 nsec
> > wlan0: no probe response from AP 00:14:7c:ae:d1:90 - disassociating
> > wlan0: authenticate with AP 00:14:7c:ae:d1:90
> > wlan0: authenticated
> > wlan0: associate with AP 00:14:7c:ae:d1:90
> > wlan0: RX AssocResp from 00:14:7c:ae:d1:90 (capab=0x431 status=0 aid=5)
> > wlan0: associated
> > wlan0: authenticate with AP 00:14:7c:ae:d1:90
> > wlan0: authenticated
> > wlan0: associate with AP 00:14:7c:ae:d1:90
> > wlan0: RX AssocResp from 00:14:7c:ae:d1:90 (capab=0x431 status=0 aid=5)
> > wlan0: associated
> > [kristoffer@boggieman wine.git]$
> >
> >
> >    
> yeah I'm seeing this with my macbook pro(ath9k)
> while streaming music, all of a sudden things just crap out.
> (not sure if this is why, or something else).
> 
> Justin P. Mattock

I'm getting similar reports for iwl3945 and 2.6.31.[01], but can't confirm 
this on my own (non-iwl{3945,agn}, non-ath9k) hardware yet.

Regards
	Stefan Lippers-Hollmann