Date:	Wed, 30 Sep 2009 12:53:35 +0200
From:	Kristoffer Ericson <kristoffer.ericson@...il.com>
To:	"Justin P. Mattock" <justinmattock@...il.com>
Cc:	Stefan Lippers-Hollmann <s.L-H@....de>,
	linux-wireless@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Disassociating atheros wlan with 2.6.31

On Thu, 24 Sep 2009 13:07:12 -0700
"Justin P. Mattock" <justinmattock@...il.com> wrote:

> Stefan Lippers-Hollmann wrote:
> > Hi
> >
> > CCing linux-wireless@...r.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@...gieman 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
> >
> >    
> I don't mind doing a bisect from 30 - present, but first I need to
> do some other stuff.
> 

Just tried 2.6.31.1 and getting same issues as I got from
2.6.31. Interesting is also that at first disassociation I can
re-activate it by authorizing again with the hub. The second time
around though that doesnt work.


> Justin P. Mattock


-- 
Kristoffer Ericson <kristoffer.ericson@...il.com>
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