Re: ehci_hcd related S3 lockup on ASUS laptops, again

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On Thu, 2012-04-12 at 13:48 -0400, Alan Stern wrote:
> On Thu, 12 Apr 2012, Steven Rostedt wrote:
> 
> > On Thu, 2012-04-12 at 13:06 -0400, Alan Stern wrote:
> > 
> > > > Where do I read out the dev info?
> > > 
> > > It should appear in the dmesg log after the system returns from the 
> > > suspend test.
> > 
> > That's what I thought. I didn't see any message there so I had to ask.
> 
> Oh, my mistake.  This routine doesn't get called when pm_test is set to 
> "devices"; you have to set it to "platform".  Sorry about that.

And I forgot that the echo isn't enough, and I need to do a pm-suspend
too ;-)

# dmesg | grep target
[ 8829.427534] atl1c 0000:04:00.0: target 3 wakeup 0 error 0
[ 8829.443524] xhci_hcd 0000:03:00.0: target 3 wakeup 1 error 0
[ 8829.459506] iwlwifi 0000:02:00.0: target 3 wakeup 0 error 0
[ 8829.459560] pci 0000:00:1f.3: target 0 wakeup 0 error 0
[ 8829.459607] pci 0000:00:1f.0: target 0 wakeup 0 error 0
[ 8829.475458] ehci_hcd 0000:00:1d.0: target 3 wakeup 1 error 0
[ 8829.491433] ehci_hcd 0000:00:1a.0: target 3 wakeup 1 error 0
[ 8829.507416] pci 0000:00:16.0: target 3 wakeup 0 error 0

-- Steve

> 
> > > Maybe that's the problem here.  Steve and Andrey, does it make any 
> > > difference to the behavior if you do
> > > 
> > > 	echo on >/sys/bus/pci/devices/0000:00:1a.0/power/control
> > > 
> > > (and likewise for 1d.0) before starting the system suspend?
> > 
> > The two files already are set to "on" (without me doing anything)
> 
> Okay, so that's not the reason...
> 
> Alan Stern


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