netdev - Wireless fails to associate at boot (regression) due to commit 77fdaa12c

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Date:	Tue, 21 Jul 2009 14:54:29 +0900
From:	Mike McCormack <mikem@...g3k.org>
To:	johannes@...solutions.net
Cc:	netdev@...r.kernel.org
Subject: Wireless fails to associate at boot (regression) due to commit 
	77fdaa12c

Hi Johannes,

The following commit causes my wireless network not to associate after
bootup.  It eventually associates with the wireless router (dlink,
unencrypted) after 5 or 10 minutes, or after poking it with an
ifdown/ifup wlan0.  Without the following patch, association occurs by
the time dhclient starts looking for an IP address for my machine.

mike@...i:~/net-next-2.6$ cat wireless-regression.txt
77fdaa12cea26c204cc12c312fe40bc0f3dcdfd8 is first bad commit
commit 77fdaa12cea26c204cc12c312fe40bc0f3dcdfd8
Author: Johannes Berg <johannes@...solutions.net>
Date:   Tue Jul 7 03:45:17 2009 +0200

    mac80211: rework MLME for multiple authentications

The system is a mini-mac, and the wireless card is using the ath5k driver:

02:00.0 Ethernet controller: Atheros Communications Inc. AR242x
802.11abg Wireless PCI Express Adapter (rev 01)
        Subsystem: Apple Computer Inc. Device 0086
        Flags: bus master, fast devsel, latency 0, IRQ 17
        Memory at 90100000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 2
        Capabilities: [50] Message Signalled Interrupts: Mask- 64bit-
Queue=0/0 Enable-
        Capabilities: [60] Express Legacy Endpoint, MSI 00
        Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
        Capabilities: [100] Advanced Error Reporting <?>
        Capabilities: [140] Virtual Channel <?>
        Kernel driver in use: ath5k
        Kernel modules: ath5k

After associating we get:

mike@...i:~/net-next-2.6$ /sbin/iwconfig wlan0
wlan0     IEEE 802.11abg  ESSID:"dlink"
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:22:B0:F3:6E:CB
          Bit Rate=36 Mb/s   Tx-Power=20 dBm
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

Below is the dmesg output in case of failure.

thanks,

Mike


[   11.505312] loop: module loaded
[   11.744097] cfg80211: Using static regulatory domain info
[   11.744169] cfg80211: Regulatory domain: US
[   11.744231]  (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp)
[   11.744311]  (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm)
[   11.744380]  (5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
[   11.744456]  (5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
[   11.744519]  (5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
[   11.744582]  (5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
[   11.744644]  (5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm)
[   11.744712] cfg80211: Calling CRDA for country: US
[   11.891754] ath5k 0000:02:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[   11.891831] ath5k 0000:02:00.0: setting latency timer to 64
[   11.891867] ath5k 0000:02:00.0: registered as 'phy0'
[   12.100829] ath: EEPROM regdomain: 0x5e
[   12.100832] ath: EEPROM indicates we should expect a direct regpair map
[   12.100837] ath: Country alpha2 being used: KP
[   12.100839] ath: Regpair used: 0x5e
[   12.317670] phy0: Selected rate control algorithm 'minstrel'
[   12.318020] ath5k phy0: Atheros AR5414 chip found (MAC: 0xa3, PHY: 0x61)
[   12.318971] cfg80211: Calling CRDA for country: KP
[   12.479093] device-mapper: uevent: version 1.0.3
[   12.479669] device-mapper: ioctl: 4.15.0-ioctl (2009-04-01)
initialised: dm-devel@...hat.com
[   78.401661] NET: Registered protocol family 10
[   78.402439] lo: Disabled Privacy Extensions
[   78.403894] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  136.401387] [drm] Initialized drm 1.1.0 20060810
[  136.558731] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[  136.558738] pci 0000:00:02.0: setting latency timer to 64
[  136.562181] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[  297.483216] wlan0: deauthenticating by local choice (reason=3)
[  300.593186] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[  300.593214] wlan0: direct probe to AP 00:22:b0:f3:6e:cb (try 1)
[  300.596300] wlan0 direct probe responded
[  300.596307] wlan0: authenticate with AP 00:22:b0:f3:6e:cb (try 1)
[  300.597728] wlan0: authenticated
[  300.796039] wlan0: associate with AP 00:22:b0:f3:6e:cb (try 1)
[  300.798311] wlan0: RX AssocResp from 00:22:b0:f3:6e:cb (capab=0x421
status=0 aid=1)
[  300.798317] wlan0: associated
[  300.799024] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[  311.648031] wlan0: no IPv6 routers present
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