Linus Torvalds wrote:
> On Fri, 17 Apr 2009, Rafael J. Wysocki wrote:
>   
>> Can you please try to reproduce the problem with the appended debug patch
>> applied and send the output of dmesg to me?
>>     
>
> Maybe something like this instead (or in addition to).
>
> It does "show_mem()" when memory shrinking fails. It will show a _lot_ of 
> data.
>
> Untested, but trivial.
>
> 		Linus
> ---
>   

Ok, I applied both your and Rafael's debug patches.  dmesg attached.

After the failed hibernation, I noticed my touchpad wasn't working.  But 
I think that's something else.  I had another go and couldn't reproduce 
that.  It's happened to me once before while testing 2.6.30-; I've also 
had the keyboard stop working at least once.  I'm hoping it's the same 
bug as "20 ACPI interrupts per second on EEEPC" bug.  It could be 
overloading my bug-ridden EC, which also acts as the keyboard controller.

Thanks
Alan