linux-kernel - Re: 2.6.21-rc7-mm2 crash: Eeek! page_mapcount(page) went negative! (-1)

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Message-Id: <1178098882.28231.1187661107@webmail.messagingengine.com>
Date:	Wed, 02 May 2007 11:41:22 +0200
From:	"Tilman Schmidt" <tilman@...p.cc>
To:	"Greg KH" <gregkh@...e.de>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"Kay Sievers" <kay.sievers@...y.org>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, "Nick Piggin" <nickpiggin@...oo.com.au>,
	"Hugh Dickins" <hugh@...itas.com>
Subject: Re: 2.6.21-rc7-mm2 crash: Eeek! page_mapcount(page) went negative!     
   (-1)

On Wed, 2 May 2007 00:43:05 -0700, "Greg KH" <gregkh@...e.de> said:

> > > And the winner is:
> > > 
> > > gregkh-driver-driver-core-make-uevent-environment-available-in-uevent-file.patch
> > > 
> > > Reverting only that from 2.6.21-rc7-mm2 gives me a working kernel
> > > again.
> 
> Wait, even though this isn't good, it shouldn't have been hit by anyone,
> that file used to not be readable, so I doubt userspace would have been
> trying to read it...
> 
> Tilman, what version of HAL and udev do you have on your machine?

The ones that came with SuSE 10.0:

hal-0.5.4-6.4
udev-068git20050831-9

HTH
Tilman

PS: I'll test your patch and git-bisect when I'm back at the machine.
-- 
  Tilman Schmidt
  tilman@...p.cc

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