Kernel 2.6.36 tiene problemas con el wifi, este no inicia luego de suspender… ath: Couldn’t reset chip

Al parecer los kernels mayores a 2.6.35 tienen este problema, yo creí que lo solucionaba compilando compat-wireless, pero no, al parecer rompieron algo en el kernel, esta es la salida normal, compilando el kernel 2.6.36:

[34432.470851] ath9k: Driver unloaded
[34434.707118] ath9k 0000:09:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[34434.833532] ath: timeout (100000 us) on reg 0x7044: 0xffffffff & 0x0000000f != 0x00000002
[34434.842047] ath: Couldn’t reset chip
[34434.849972] ath: Unable to initialize hardware; initialization status: -5
[34434.857770] ath9k 0000:09:00.0: Failed to initialize device
[34434.865549] ath9k 0000:09:00.0: PCI INT A disabled
[34434.873565] ath9k: probe of 0000:09:00.0 failed with error -5
[34474.915507] ath9k: Driver unloaded
[34498.060299] ath9k 0000:09:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[34498.273298] ath: timeout (100000 us) on reg 0x7044: 0xffffffff & 0x0000000f != 0x00000002
[34498.361427] ath: Couldn’t reset chip
[34498.450111] ath: Unable to initialize hardware; initialization status: -5
[34498.541027] ath9k 0000:09:00.0: Failed to initialize device
[34498.631793] ath9k 0000:09:00.0: PCI INT A disabled
[34498.722454] ath9k: probe of 0000:09:00.0 failed with error -5

Este es el kernel 2.6.36 con compat-wireless-2010-10-20:

[ 673.028905] Compat-wireless backport release: compat-wireless-2010-10-14-7-gab01eca
[ 673.035596] Backport based on linux-next.git next-20101020
[ 673.088724] cfg80211: Calling CRDA to update world regulatory domain
[ 673.225277] cfg80211: World regulatory domain updated:
[ 673.231990] (start_freq – end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 673.238908] (2402000 KHz – 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 673.245693] (2457000 KHz – 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 673.252320] (2474000 KHz – 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 673.258909] (5170000 KHz – 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 673.265426] (5735000 KHz – 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 673.357249] ath9k 0000:09:00.0: Refused to change power state, currently in D3
[ 673.438250] ath9k 0000:09:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
[ 673.632550] ath: timeout (100000 us) on reg 0x7044: 0xffffffff & 0x0000000f != 0x00000002
[ 673.717231] ath: Couldn’t reset chip
[ 673.802209] ath: Unable to initialize hardware; initialization status: -5
[ 673.888984] ath9k 0000:09:00.0: Failed to initialize device
[ 673.974819] ath9k 0000:09:00.0: PCI INT A disabled
[ 673.982361] ath9k: probe of 0000:09:00.0 failed with error -5
Después de matar y revivir a NEtworkManager
[ 825.903081] tg3 0000:03:00.0: PME# enabled
[ 825.990135] pcieport 0000:00:04.0: wake-up capability enabled by ACPI
[ 829.574538] pcieport 0000:00:04.0: wake-up capability disabled by ACPI
[ 829.581538] tg3 0000:03:00.0: PME# disabled
[ 829.599289] tg3 0000:03:00.0: irq 43 for MSI/MSI-X
[ 829.726577] ADDRCONF(NETDEV_UP): eth0: link is not ready

Al parecer tiene que ver con: ath9k 0000:09:00.0: Refused to change power state, currently in D3

———————–NO FUNCIONABA CUANDO LO PROBÉ, NO SÉ SI AHORA LO HAGA———————
Luego de suspender y resumir, obtenemos una PC lenta, lerda, sin wifi…

Cómo solucionamos el problema?
En mi caso he instalado el compat-wireless-2010-10-20, tan simple como:
./scripts-drivers ath
make
sudo make install
sudo make wlunload
sudo modprobe ath9k

Voilá!, tenemos wifi nuevamente y los errores ya no pasan…

NOTA: Esto parece haber sido corregido en la versión 2.6.37-RC2
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2
commit f119da3015712dc32bdf1c311652479e02dcb49a