linux-kernel - Re: error: Eeek! page_mapcount(page) went negative! (-1) with different process and kernels

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Date:	Tue, 16 Oct 2007 22:36:42 -0400
From:	Dave Jones <davej@...hat.com>
To:	Arnaud Fontaine <arnaud@...esi.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: error: Eeek! page_mapcount(page) went negative! (-1) with
	different process and kernels

On Wed, Oct 17, 2007 at 01:03:02AM +0200, Arnaud Fontaine wrote:
 > >>>>> "Dave" == Dave Jones <davej@...hat.com> writes:
 > 
 >     Dave> Many of these that I've  seen have turned out to be a hardware
 >     Dave> problem.  Try running memtest86+  on that machine for a while.
 >     Dave>  It doesn't  catch all  problems, but  it will  highlight more
 >     Dave> common memory faults.
 > 
 > Hello,
 > 
 > We ran memtest86+ before production, it  was about one month ago. Do you
 > think it could come from that anyway?

Not impossible. Hardware failures can occur at any time.
Somewhat unlikely though.  As I mentioned, memtest also doesn't trap
all hardware problems.  I have a board that passes memtest with flying
colours, yet dies under even slight load. Examination of the board
shows that it has leaking capacitors.

	Dave

-- 
http://www.codemonkey.org.uk
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