Dave Hansen [off-list ref] wrote:

The following patch removes the individual free area initialization from
 free_area_init_core(), and puts it in a new function
 zone_init_free_lists().  It also creates pages_to_bitmap_size(), which
 is then used in zone_init_free_lists() as well as several times in my
 free area bitmap resizing patch.  

This causes my very ordinary p4 testbox to crash very early in boot.  It's
quite pretty, with nice colourful stripes of blinking text on the display.

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