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Date:      Wed, 9 Nov 2005 15:57:50 -0800
From:      Danny Howard <dannyman@toldme.com>
To:        user <user@dhp.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: how do I tell FreeBSD to sync, for real ?
Message-ID:  <20051109235750.GF72876@ratchet.nebcorp.com>
In-Reply-To: <Pine.LNX.4.21.0511081630280.8180-100000@shell.dhp.com>
References:  <Pine.LNX.4.21.0511081630280.8180-100000@shell.dhp.com>

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On Tue, Nov 08, 2005 at 04:34:04PM -0500, user wrote:
> 
> Sometimes you delete a large batch of files, or you do some other serious
> FS operations and the output of `df` does not tell you immediately of the
> new disk space, etc.
> 
> If you run something like:  sync
> 
> Or even:  sync ; sync

user,

can you describe a reproducible phenomenon?

Did you delete something from /var/log and you're waiting for df to
reflect that?  This is a common one ... if a process has a filehandle
open, and you delete the file, the blocks on disk are not freed until
the process closes that filehandle.

If this is what's thwarting you, check out lsof. :)

Cheers,
-danny

-- 
http://dannyman.toldme.com/



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