Messages in this thread | | | Date | Tue, 3 Jun 2008 16:42:25 +1000 | From | Paul Mackerras <> | Subject | Re: [PATCH -mm] clean up duplicated alloc/free_thread_info |
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Pekka Enberg writes:
> Yeah, I too have wondered why some architectures use kmalloc() whereas > others use the page allocator. Is THREAD_SIZE significantly smaller > than PAGE_SIZE for those?
64-bit powerpc uses 16k kernel stacks and either 4k or 64k page size. If the page size is 64k then we don't want to allocate a whole page for a kernel stack.
Paul.
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