Andy,

Thanks for putting this together. I've given it a go and the results are not as good as others, although better than the vanilla kernel.

On my system I lose the sound initially on boot, and in particular the inbuilt SPDIF is non-functional to start with despite selecting Digital output on the sound preferences. Instead I get a series of clicks from the machine  and a bunch of messages in dmesg

[   68.200275] hda-intel: spurious response 0x0:0x0, last cmd=0x670503
[   68.200277] hda-intel: spurious response 0x0:0x0, last cmd=0x670503
[   68.200280] hda-intel: spurious response 0x0:0x0, last cmd=0x870503
[   68.200282] hda-intel: spurious response 0x0:0x0, last cmd=0x870503

This is a regression.

On the wireless side the driver is somewhat more stable than orginal. Unfortunately the rate selection algorithm leaves a little to be desired as it is selecting and sticking with rates that are not sustainable. I regularly lose IP throughput to the router despite the wireless showing as connected. When it stick like this and I force a reattachment I get the DMA stall message in the kernel log.


[  206.241910] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  207.241841] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  207.451996] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  212.494469] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  213.481942] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  213.692490] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  218.724375] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  219.701934] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  219.912340] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  224.951915] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  225.941954] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  226.152381] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  231.201896] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  232.181888] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  232.391960] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  237.444419] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  238.431867] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  238.642009] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  243.694374] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  244.671917] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  244.882413] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  249.921873] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  250.901918] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  251.114939] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  256.141905] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  257.134399] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  257.342371] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  347.511845] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  348.492672] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020
[  348.702094] ath9k: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x40000020

Sometimes I can do a remove and reinsert of the module, but it rarely brings the network back.

Mostly I get the usual message

[  928.191692] ath9k: Driver unloaded
[  948.749285] ath9k 0000:06:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[  948.859217] ath9k: timeout (100000 us) on reg 0x7044: 0xffffffff & 0x0000000f != 0x00000002
[  948.859227] ath9k: Couldn't reset chip
[  948.859240] ath9k: Unable to attach hardware; HAL status -5
[  948.859798] ath9k 0000:06:00.0: PCI INT A disabled


This is on karmic.