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

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Message-Id: <20071119010002.9387d36b.akpm@linux-foundation.org>
Date:	Mon, 19 Nov 2007 01:00:02 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Torsten Kaiser" <just.for.lkml@...glemail.com>
Cc:	"Trond Myklebust" <trond.myklebust@....uio.no>,
	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
	"Ingo Molnar" <mingo@...e.hu>,
	"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>, steved@...hat.com
Subject: Re: [BUG] 2.6.24-rc2-mm1 - kernel bug on nfs v4

On Mon, 19 Nov 2007 08:15:48 +0100 "Torsten Kaiser" <just.for.lkml@...glemail.com> wrote:

> On Nov 18, 2007 8:18 PM, Trond Myklebust <trond.myklebust@....uio.no> wrote:
> > On Sun, 2007-11-18 at 19:44 +0100, Torsten Kaiser wrote:
> > > NFSv2/3 and NFSv4 share the same dentry_iput and so share the same
> > > unlink and sillyrename logic.
> > > But they do not share nfs_init_server()!
> > >
> > > I wonder why this doesn't blow up more violently, but only hangs...
> > >
> > > But as I don't know if it is correct to add the workqueue
> > > initialization to nfs4_init_server() or remove the nfs_sb_active /
> > > nfs_sb_deactive for the NFSv4 case, I can't offer a patch to fix this.
> > >
> > > Torsten
> >
> > I had already fixed that one in my own stack. Attached are the 3 patches
> > that I've got. 1 from SteveD, 2 fixes.
> >
> 
> Moving the init_waitqueue_head() like patch
> linux-2.6.24-006-fix_to_fix_sillyrename_bug_on_umount.dif and applying
> linux-2.6.24-007-fix_nfs_free_unlinkdata.dif lets my testcase work.
> Also lockdep no longer complains about the non-static key.
> 

Thanks.

To avoid goofups, could you please send the full fix against 2.6.24-rc2-mm1?
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