On 9/2/07, Andi Kleen <[email protected]> wrote:
> The other issue to test some of them properly you need unmapped pages
> etc. That gets much easier to do in user space. There are some other
> issues.
vmalloc, vmap, etc. always put a guard page after the allocation. So
if you test string operations on vmalloc()'ed memory, you have
unmapped pages in both ends.
I like the idea of a test suite for kernel internals, but I also think
it would be best to run it in kernel mode since things like atomics,
etc. may work differently in user space on some architectures.
Haavard
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