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Date: Mon, 12 Feb 2001 12:51:15 +0100
From: Olaf Hering <olh@suse.de>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "H. Peter Anvin" <hpa@transmeta.com>, autofs@linux.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: race in autofs / nfs
Message-ID: <20010212125115.B30552@suse.de>
In-Reply-To: <20010211211701.A7592@suse.de> <3A86F6AA.1416F479@transmeta.com> <shsbss8i8iq.fsf@charged.uio.no> <20010212111448.A28932@suse.de>
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In-Reply-To: <20010212111448.A28932@suse.de>; from olh@suse.de on Mon, Feb 12, 2001 at 11:14:48AM +0100
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On Mon, Feb 12, Olaf Hering wrote:

> On Mon, Feb 12, Trond Myklebust wrote:
> 
> > >>>>> " " == H Peter Anvin <hpa@transmeta.com> writes:
> > 
> >      > Olaf Hering wrote:
> >     >>
> >     >> Hi,
> >     >>
> >     >> there is a race in 2.4.1 and 2.4.2-pre3 in autofs/nfs.  When
> >     >> the cwd is on the nfs mounted server (== busy) and you try to
> >     >> reboot the shutdown hangs in "rcautofs stop". I can reproduce
> >     >> it everytime.
> >     >>
> > 
> >      > Sounds like an NFS bug in umount.
> > 
> > Or a dcache bug: the above points to a corruption of the mnt_count
> > which is supposed to be > 0 if the partition is in use. I'm seeing a
> > similar leak for ext2 partitions (not involving autofs or NFS).
> 
> (hmm, it loads autofs and not autofs4 on 7.0?)

The autofs4.o is the culprit, it works perfect with autofs.o.

What would happen if I stick with autofs.o now?
The docu recommends autofs4 in modules.conf.



Gruss Olaf

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