Pekka Enberg writes:

quoted text
> 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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