On Saturday, 17 of November 2007, Jiri Slaby wrote:
quoted text
> On 11/16/2007 05:10 PM, Alan Stern wrote:
> > On Thu, 15 Nov 2007, Greg KH wrote:
> > 
> >>> The offending -mm patch is
> >>> gregkh-driver-pm-acquire-device-locks-prior-to-suspending.patch
> >>>
> >>> 2.6.24-rc2-mm1 minus it works just fine; PROVE_LOCKING shows nothing new when
> >>> the patch is applied.
> >> Thanks for tracking this down.  Alan, any thoughts?
> > 
> > It's a driver problem somewhere.  Probably not one of the most common 
> > drivers because I don't see the same problem here (but then I'm not 
> > testing -mm).
> > 
> > The thing to do is figure out which driver is causing the problem.
> > Jiri, try enabling CONFIG_DEBUG_DRIVER.  
> 
> Sadly no output.
> 
> > If there's also a config 
> > option to prevent the console from being suspended, set it as well.  
> 
> no_suspend_console kernel parameter has no effect (why?).

I'm not sure.

Please try to set CONFIG_PM_VERBOSE.
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