Messages in this thread | | | Date | Wed, 25 Jul 2007 10:56:06 -0700 | From | William Lee Irwin III <> | Subject | Re: RFC: CONFIG_PAGE_SHIFT (aka software PAGE_SIZE) |
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On Wed, Jul 25, 2007 at 04:39:04PM +0200, Andrea Arcangeli wrote: > For the kernel stack btw, when alloc_pages(order=1) fails vmalloc > should be used and 4k stacks can be dropped. Nobody does dma from the > stack anymore these days IIRC (it doesn't work in all archs anyway).
I have recent code for that circulating, albeit intended for debugging purposes. There's nothing particularly debug-oriented about it, though, apart from the fact a guard page is automatically set up by vmalloc() and that the use of vmalloc() is unconditional.
As for the rest, I'm sure there could be a lively conversation, but consensus, so I'll let it go.
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