From: Mike Waychison <Michael.Waychison@Sun.COM>
To: Terrence Martin <tmartin@physics.ucsd.edu>
Cc: autofs@linux.kernel.org
Subject: Re: Is it normal for autofs to remount a file system more than once?
Date: Thu, 02 Sep 2004 22:48:14 -0400 [thread overview]
Message-ID: <4137DB6E.3020204@sun.com> (raw)
In-Reply-To: <41379549.2040305@physics.ucsd.edu>
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Terrence Martin wrote:
> Hi,
>
> I am not sure if this is related to my NFS mount hanging problems, but I
> have noticed that autofs will often remount a file system multiple
> times. Is this normal? I think I have pretty straight forward auto.
> files....
>
> Terrence Martin
> UCSD Physics
>
> mount
>
> df
Both of these tools get their mount information from /etc/mtab, a plain
text file. This file can get out of sync for a variety of reasons
unfortunately. Some common reasons I usually see are:
- - You may be using multiple namespaces. [u]mount(8) doesn't know how to
handle this.
- - [u]mount(8) has trouble getting a lock on the file, so it has trouble
updating.
The only way to see an accurate picture of your mount tree is to look at
/proc/mounts. If this file has multiple entries for your automounted
filesystem, then there indeed is a problem.
Btw, you didn't mention which kernel(+patches?) and automount version
are you using. That would help :)
Thanks,
- --
Mike Waychison
Sun Microsystems, Inc.
1 (650) 352-5299 voice
1 (416) 202-8336 voice
http://www.sun.com
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NOTICE: The opinions expressed in this email are held by me,
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next prev parent reply other threads:[~2004-09-03 2:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-02 21:48 Is it normal for autofs to remount a file system more than once? Terrence Martin
2004-09-03 2:48 ` Mike Waychison [this message]
2004-09-03 8:01 ` Terrence Martin
2004-09-03 14:20 ` Jeff Moyer
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