| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <Pine.LNX.4.64.0704020840370.30394@schroedinger.engr.sgi.com> Date: Mon, 2 Apr 2007 08:44:27 -0700 (PDT) From: Christoph Lameter <clameter@....com> To: Andi Kleen <ak@...e.de> cc: linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, Martin Bligh <mbligh@...gle.com>, linux-mm@...ck.org, KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> Subject: Re: [PATCH 1/4] x86_64: Switch to SPARSE_VIRTUAL On Sun, 1 Apr 2007, Andi Kleen wrote: > And when you reserve virtual space somewhere you should > update Documentation/x86_64/mm.txt. Also you didn't adjust > the end of the vmalloc area so in theory vmalloc could run > into your vmemmap. Ok. will add to the doc in the next release. No need to adjust the end of the vmalloc area because the vmemmap starts at the end of it: include/asm-x86_64/pgtable.h: #define VMALLOC_START 0xffffc20000000000UL #define VMALLOC_END 0xffffe1ffffffffffUL Index: linux-2.6.21-rc5-mm2/include/asm-x86_64/page.h #define vmemmap ((struct page *)0xffffe20000000000UL) According to Documentation/x86_64/mm.txt this is an unused hole: ffffc20000000000 - ffffe1ffffffffff (=45 bits) vmalloc/ioremap space ... unused hole ... ffffffff80000000 - ffffffff82800000 (=40 MB) kernel text mapping, from phys 0 ... unused hole ... - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists