Re: [PATCH] Read only syscall tables for x86_64 and i386
From: Christoph Lameter
Date: Tue Jun 28 2005 - 14:53:39 EST
On Tue, 28 Jun 2005, Andi Kleen wrote:
> It's unfortunately useless because all the kernel is mapped in the
> same 2 or 4MB page has to be writable because it overlaps with real
> direct mapped memory.
The question is: Are syscall tables are supposed to be
writable? If no then this patch should go in. If yes then forget about it.
On IA64 they are readonly and so I thought they should also be readonly
on i386 and x86_64.
The ability to protect a readonly section may be another issue.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/