From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keith Owens Date: Tue, 04 Nov 2003 10:29:19 +0000 Subject: Re: Page table mapped and identity segments! Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Tue, 4 Nov 2003 15:40:06 +0530, "Ameya Mitragotri" wrote: >I am refering to David's and Stephanes's book on the IA64 linux kernel. >From my understanding, > >1) I can see that the PAGE_OFFSET which designates the start of >the identity mapped segment starts at 0xe000000000000000 (region 7). > >2) This region has the linux kernel text/data/stack segments. > >Now after compiling the linux-2.6.0-test5 on an itanium-2 machine, >the System.map generated contains addresses only starting with >0xa0000..which means all these lie in the page table mapped segments >(region 5). The book refers to the 2.4 and earlier kernels. In 2.6 kernels the kernel code and data lives in region 5, not 7.