linux-kernel - Re: [BUG] 2.6.24-rc2-mm1

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Date:	Sat, 17 Nov 2007 10:19:57 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Torsten Kaiser <just.for.lkml@...glemail.com>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>, linuxppc-dev@...abs.org,
	nfs@...ts.sourceforge.net, Andy Whitcroft <apw@...dowen.org>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Jan Blunck <jblunck@...e.de>,
	Trond Myklebust <trond.myklebust@....uio.no>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

On Sat, 17 Nov 2007 19:09:46 +0100 Ingo Molnar <mingo@...e.hu> wrote:

> 
> * Torsten Kaiser <just.for.lkml@...glemail.com> wrote:
> 
> > Sadly lockdep does not work for me, as it gets turned off early:
> > [   39.851594] ---------------------------------
> > [   39.855963] inconsistent {softirq-on-W} -> {in-softirq-W} usage.
> > [   39.861981] swapper/0 [HC0[0]:SC1[1]:HE0:SE0] takes:
> > [   39.866963]  (&n->list_lock){-+..}, at: [<ffffffff802935c1>]
> 
> hey, that means it found a bug - which is not sad at all :-)
> 

mutter.

Torsten, you could try CONFIG_SLAB=y, CONFIG_SLUB=n to see if you can make
some progress on the NFS problem.

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