Andrea Arcangeli wrote:
> Still I recommend investigating _why_ debug_pagealloc is violating the
> API. It might not be necessary to wait for the pageattr universal
> feature to make DEBUG_PAGEALLOC work safe.

This makes the DEBUG_PAGEALLOC stuff symmetric enough to boot for me, 
and it's pretty damn simple.  Any ideas for doing this without bloating 
'struct page', even in the debugging case?