| 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
| ||
|
Date: Tue, 10 Dec 2013 17:06:36 -0800 From: "H. Peter Anvin" <hpa@...or.com> To: Yinghai Lu <yinghai@...nel.org> CC: Xishi Qiu <qiuxishi@...wei.com>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, the arch/x86 maintainers <x86@...nel.org>, Linn Crosetto <linn@...com>, Pekka Enberg <penberg@...nel.org>, LKML <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Linux MM <linux-mm@...ck.org> Subject: Re: [PATCH] mm,x86: fix span coverage in e820_all_mapped() Ok, the issue I thought we were discussing was actually [A,B) [B,C) [C,D) ... Yinghai Lu <yinghai@...nel.org> wrote: >On Tue, Dec 10, 2013 at 2:51 PM, H. Peter Anvin <hpa@...or.com> wrote: >> On 12/10/2013 01:52 PM, Yinghai Lu wrote: >>>> >>>> What happens if it spans more than two regions? >>> >>> [A, B), [B+1, C), [C+1, D) ? >>> start in [A, B), and end in [C+1, D). >>> >>> old code: >>> first with [A, B), start set to B. >>> then with [B+1, C), start still keep as B. >>> then with [C+1, D), start still keep as B. >>> at last still return 0...aka not_all_mapped. >>> >>> old code is still right. >>> >> >> Why not_all_mapped? > >[B, B+1), and [C, C+1) are not there. -- Sent from my mobile phone. Please pardon brevity and lack of formatting. -- 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