linux-kernel - Re: quicklists confuse meminfo

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Message-ID: <Pine.LNX.4.64.0803260929350.27909@schroedinger.engr.sgi.com>
Date:	Wed, 26 Mar 2008 09:34:00 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Bart Van Assche <bart.vanassche@...il.com>
cc:	Ingo Molnar <mingo@...e.hu>, Nick Piggin <nickpiggin@...oo.com.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: quicklists confuse meminfo

On Wed, 26 Mar 2008, Bart Van Assche wrote:

> Thanks to everyone who worked on this. By the way, I have asked Albert 
> Calahan, the procps maintainer, to fix the free/top/vmstat tools such 
> that these take recently added /proc/meminfo fields into account and 
> display correct values on recent 2.6 kernels. See also 
> http://bugzilla.kernel.org/show_bug.cgi?id=9991 and 
> http://marc.info/?l=linux-mm&m=120496901605830&w=2.

Be aware that some distros have hacked their meminfo (proc and 
/sys/devices/system/node/node*/meminfo) output to be more compatible with 
recent 2.6 kernels but not updated to the new ZVC counter scheme. On those 
kernels (<2.6.17) counters may show weird values and the sum of the per 
node counters in sysfs may not yield the same amount shown in 
/proc/meminfo.
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