Re: [RFC v3] Support volatile range for anon vma

[Mike Hommey]

On Tue, Dec 11, 2012 at 11:41:04AM +0900, Minchan Kim wrote:
> - What's the madvise(addr, length, MADV_VOLATILE)?
> 
>   It's a hint that user deliver to kernel so kernel can *discard*
>   pages in a range anytime.
> 
> - What happens if user access page(ie, virtual address) discarded
>   by kernel?
> 
>   The user can see zero-fill-on-demand pages as if madvise(DONTNEED).

What happened to getting SIGBUS?

Mike
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