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SubjectRe: [bug] SLUB + mm/slab.c boot crash in -rc9

* Ingo Molnar <mingo@elte.hu> wrote:

> - we have a special loop for highmem pages in arch/x86/mm/init_32.c,
> set_highmem_pages_init(). This just goes through the PFNs one by one
> and does an explicit __free_page() on all RAM pages that are in the
> mem_map[] and which are non-reserved.
>
> and that's it roughly.

btw., highmem shouldnt matter because it does not influence how we
allocate our key data structures.

i confirmed that by turning set_highmem_pages_init() into a NOP - the
kernel still crashed with just lowmem memory being around.

Ingo


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