Re: [Regression, 2.6.36-rc1] ath9k resume problem on Acer Ferrari One

From: Rafael J. Wysocki
Date: Thu Aug 19 2010 - 09:57:16 EST


On Thursday, August 19, 2010, Luis R. Rodriguez wrote:
> On Wed, Aug 18, 2010 at 3:01 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> > Hi,
> >
> > While testing 2.6.36-rc1 (with a couple of fixes on top)
>
> Which couple of fixes?

AMD bood fix, HID suspend fix and shmem fix (two of them have already been
merged).

> > I noticed that the ath9k
> > driver didn't work after resume from suspend to RAM.
>
> To rule out if its an ath9k issue you can try
> compat-wireless-2.6.36-rc1 from here:
>
> http://wireless.kernel.org/en/users/Download/stable/
>
> and install it on an older kernel, you can use ./scripts/driver-select
> to only enable ath9k to compile.

Well, that sounds a bit complicated and even if I know it's not ath9k,
that's not going to help me find the real source of the problem.

> I've been using pm-suspend on this release for a few days now without
> any issue but I am using an AR9003 chipset. What chipset are you
> using? Can you provide the dmesg output upon module load?

Sure.

[ 9.680128] ath9k 0000:09:00.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
[ 9.689487] ath9k 0000:09:00.0: setting latency timer to 64
[ 9.706383] HDA Intel 0000:00:14.2: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 9.805043] hda_codec: ALC272X: BIOS auto-probing.
[ 9.819389] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:14.2/input/input8
[ 10.155052] ath: EEPROM regdomain: 0x65
[ 10.155058] ath: EEPROM indicates we should expect a direct regpair map
[ 10.155066] ath: Country alpha2 being used: 00
[ 10.155070] ath: Regpair used: 0x65
[ 10.179762] phy0: Selected rate control algorithm 'ath9k_rate_control'
[ 10.181657] Registered led device: ath9k-phy0::radio
[ 10.181890] Registered led device: ath9k-phy0::assoc
[ 10.182139] Registered led device: ath9k-phy0::tx
[ 10.182339] Registered led device: ath9k-phy0::rx

lspci says it's:

09:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01)

Thanks,
Rafael
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