From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gianluca Anzolin <gianluca@sottospazio.it>
Subject: Re: Debugging spurious wakeup
Date: Wed, 13 May 2015 12:51:25 +0200
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To: "Zhang, Rui" <rui.zhang@intel.com>
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On Wed, May 13, 2015 at 12:17:26PM +0200, Gianluca Anzolin wrote:
> On Wed, May 13, 2015 at 09:42:46AM +0000, Zhang, Rui wrote:
> > > The echo command didn't work: infact I double checked, it didn't change the
> > > wakeup status.
> > > 
> > then please try
> > "echo disabled > /sys/bus/pci/0000:04:00.0/power/wakeup" instead.
> > 
> 
> Here follow the commands given:
> 
> root@zanac:~$ cat /sys/bus/pci/devices/0000:04:00.0/power/wakeup
> enabled
> root@zanac:~$ echo disabled > /sys/bus/pci/devices/0000:04:00.0/power/wakeup
> root@zanac:~$ cat /sys/bus/pci/devices/0000:04:00.0/power/wakeup
> disabled
> root@zanac:~$ poweroff
> 

A small follow-up.

I looked for the devices with wakeup = enabled and they are:

0000:00:1d.0
0000:04:00.0
0000:05:00.0
0000:05:00.0

For each of them I tried to disable the wakeup with the echo command and then
poweroff, but the system always turns on after a couple of seconds.

I even tried to disable them all to no avail.

Gianluca