[Bug 505470] [NEW] Problem with ath5k driver since kernel 2.6.31-18-generic

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Description of problem:
After update to kernel 2.6.31-18-generic my WLAN card does not work any
more. It works if I boot with kernel 2.6.31-17-generic

Version-Release:
Ubuntu 9.10

How reproducible:
Always

Steps to Reproduce:
1. Boot with kernel 2.6.31-18-generic

Actual results:
WLAN does not work. syslog displays:

Jan 10 14:05:15 gilgamesh kernel: [   49.265670] ath5k 0000:06:04.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
Jan 10 14:05:15 gilgamesh kernel: [   49.265725] ath5k 0000:06:04.0: registered as 'phy0'
Jan 10 14:05:15 gilgamesh kernel: [   49.750923] ath5k phy0: Invalid EEPROM checksum 0xbdc0
Jan 10 14:05:15 gilgamesh kernel: [   49.750927] ath5k phy0: unable to init EEPROM
Jan 10 14:05:15 gilgamesh kernel: [   49.750946] ath5k 0000:06:04.0: PCI INT A disabled
Jan 10 14:05:16 gilgamesh kernel: [   50.471406] ath5k: probe of 0000:06:04.0 failed with error -5

Expected results:
WLAN should work. When I boot with kernel 2.6.31.6-145.fc12.i686 dmesg shows:

Jan 10 14:07:13 gilgamesh NetworkManager: <info>  (wlan0): new 802.11 WiFi device (driver: 'ath5k')
Jan 10 14:07:13 gilgamesh kernel: [   42.537730] ath5k 0000:06:04.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
Jan 10 14:07:13 gilgamesh kernel: [   42.537776] ath5k 0000:06:04.0: registered as 'phy0'
Jan 10 14:07:13 gilgamesh kernel: [   42.896565] ath5k phy0: Atheros AR2414 chip found (MAC: 0x79, PHY: 0x45)

Additional info:
lspci -v displays

06:04.0 Ethernet controller: Atheros Communications Inc. Atheros AR5001X+ Wireless Network Adapter (rev 01)
	Subsystem: AMBIT Microsystem Corp. Device 0406
	Flags: bus master, medium devsel, latency 168, IRQ 22
	Memory at b0100000 (32-bit, non-prefetchable) [size=64K]
	Capabilities: [44] Power Management version 2
	Kernel driver in use: ath5k
	Kernel modules: ath5k

** Affects: linux
     Importance: Undecided
         Status: Invalid

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Problem with ath5k driver since kernel 2.6.31-18-generic
https://bugs.edge.launchpad.net/bugs/505470
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