linux-kernel - Re: [RFC] [PATCH] virtual memmap on sparsemem v3 [0/4] introduction

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

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20061209115137.GA10380@osiris.ibm.com>
Date:	Sat, 9 Dec 2006 12:51:37 +0100
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Christoph Lameter <clameter@...r.sgi.com>,
	Andy <apw@...dowen.org>, Andrew Morton <akpm@...l.org>
Subject: Re: [RFC] [PATCH] virtual memmap on sparsemem v3 [0/4] introduction

> Virtual mem_map is not useful for 32bit archs. This uses huge virtual
> address range.

Why? The s390 vmem_map implementation which I sent last week to linux-mm
is merged in the meantime. It supports both 32 and 64 bit.
The main reason is to keep things simple and avoid #ifdef hell.

Since the maximum size of the virtual array is  about 16MB it's not much
waste of address space. Actually I just changed the size of the vmalloc
area, so that the maximum supported physical amount of memory is still 1920MB.
-
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/