Re: ehci_hcd related S3 lockup on ASUS laptops, again

[Andrey Rahmatullin <wrar@wrar.name>]

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On Wed, Apr 18, 2012 at 04:23:20PM -0400, Alan Stern wrote:
> In the meantime, just to be certain of the diagnosis, here's a
> different patch for you guys to try.  This will test the ehci-hcd
> unbound path (i.e., use it with the script).  The patch removes the
> line that sets the dev->current_state to PCI_UNKNOWN when the driver is
> unbound.  Thus current_state will remain equal to PCI_D0, so
> pci_prepare_to_sleep should put the controllers into D3, which we
> expect will cause a crash.
> 
> Please try this both with and without pm_test set to "platform", and 
> post the debugging dmesg output from whichever cases the computer 
> survives.
With "platform":

ehci_hcd 0000:00:1d.0: wake-up capability enabled by ACPI
ehci_hcd 0000:00:1d.0: cur 0 target 3 error 0
ehci_hcd 0000:00:1a.0: wake-up capability enabled by ACPI
ehci_hcd 0000:00:1a.0: cur 0 target 3 error 0

With "none" it locks up.

-- 
WBR, wRAR

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