Re: Page scan keeps touching kernel text pages

From: JÃrn Engel
Date: Mon Feb 25 2008 - 15:39:43 EST


On Mon, 25 February 2008 13:46:32 -0600, Dave McCracken wrote:
> On Monday 25 February 2008, Andy Whitcroft wrote:
> > I thought that init sections were deliberatly pushed to the end of the
> > kernel when linked, cirtainly on my laptop here that seems to be so.
> > That would make the first two "after" the kernel. ÂThe other two appear
> > to be before the traditional kernel load address, which is 0x100000, so
> > those pages are before not in the kernel?
>
> I believe the memory below the kernel load address on x86 is returned to the
> free memory pool at some point during boot, which would explain those
> addresses.

It does explain all pages. Sorry about the noise from an mm-newbie.

JÃrn

--
Joern's library part 14:
http://www.sandpile.org/
--
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/