linux-kernel - how to tell i386 from x86-64 kernel

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Message-ID: <20080201004212.GA2818@elf.ucw.cz>
Date:	Fri, 1 Feb 2008 01:42:12 +0100
From:	Pavel Machek <pavel@....cz>
To:	kernel list <linux-kernel@...r.kernel.org>, jikos@...e.cz
Subject: how to tell i386 from x86-64 kernel

Hi!

Quiz: on a booted system, how do you tell 32bit from 64bit kernel?

A1: zcat /proc/config.gz | grep CONFIG_64

...but config.gz is optional

A2: cat /proc/meminfo  | grep High

...but i386 kernel could have highmem disabled

What is _your_ answer? ;-)>
									Pavel
-- 
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