On Mon, Oct 11, 2010 at 07:32:10PM +0200, Marco Stornelli wrote:
Il 10/10/2010 18:46, Andi Kleen ha scritto:
This won't work at all on x86 because you don't handle large
pages.
And it doesn't work on x86-64 because the first 2GB are double
mapped (direct and kernel text mapping)
2010/10/12 Andi Kleen a...@firstfloor.org:
On Mon, Oct 11, 2010 at 07:32:10PM +0200, Marco Stornelli wrote:
Il 10/10/2010 18:46, Andi Kleen ha scritto:
This won't work at all on x86 because you don't handle large
pages.
And it doesn't work on x86-64 because the first 2GB are double
per-arch?! Wow. Mmm...maybe I have to change something at fs level to
avoid that. An alternative could be to use the follow_pte solution but
avoid the protection via Kconfig if the fs is used on some archs (ia64
or MIPS), with large pages and so on. An help of the kernel community
to know all
