Re: [linux-pm] ehci_hcd related S3 lockup on ASUS laptops, again

[Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>]

On Thu, 2012-04-19 at 09:43 -0400, Alan Stern wrote:
> On Wed, 18 Apr 2012, Alan Stern wrote:
> 
> > Tomorrow we can try to figure out the appropriate workaround.
> 
> Below is a patch that will prevent any PCI device from being put into
> D3 during suspend.  (This is meant to be used without any of the
> earlier diagnostic patches.)  Obviously it's not the final solution; 
> the test in the "if" statement needs to be more discriminating.  :-)
> 
> But before going any farther, I'd like to test if USB wakeup works.  
> So after booting with this patch, make sure that the power/wakeup file
> says "enabled" in the sysfs path for each controller as well as the
> usb1, usb2, 1-2, and 2-2 paths under /sys/bus/usb/devices/.
> 
> Then suspend the computer without using the script, and while it is
> asleep try plugging in a new USB device.  That should cause the
> computer to wake up, if everything is working properly.
> 

I removed all previous patches and added this one. But without the
script, it locks up again in suspend.

I'll rebuild again just to make sure I didn't screw something up.

-- Steve


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