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Date: Mon, 12 Feb 2001 10:35:10 +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: <20010212103510.A16844@suse.de>
In-Reply-To: <20010211211701.A7592@suse.de> <3A86F6AA.1416F479@transmeta.com> <shsbss8i8iq.fsf@charged.uio.no>
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In-Reply-To: <shsbss8i8iq.fsf@charged.uio.no>; from trond.myklebust@fys.uio.no on Mon, Feb 12, 2001 at 09:57:01AM +0100
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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).

Send me patches :)
autofs is the latest, btw.
http://www.de.kernel.org/pub/linux/daemons/autofs/testing-v4/autofs-4.0.0pre9.tar.bz2


Gruss Olaf

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