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Date:      Thu, 9 Oct 2008 12:08:17 +0200
From:      Christoph Schug <chris+freebsd-stable@schug.net>
To:        David Peall <david@esn.org.za>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Problem with dump stalling
Message-ID:  <20081009100816.GA8674@dt1.in-muc.ciao.com>
In-Reply-To: <FFF7941F7B184445881228ABAD4494B34E72CA@intsika.ct.esn.org.za>
References:  <FFF7941F7B184445881228ABAD4494B34E72CA@intsika.ct.esn.org.za>

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On Wed, Oct 08, 2008, David Peall wrote:

> I'm running 7.0-RELEASE-p4 and trying to backup to an external USB
> drive.
> 
> I'm using the following command
> 
> dump -a0Lf /backup/diskimages/root /dev/mfid0s1a
[...]
> But it just stops at a random percentage,  the system continues to run
> and the processes are killable?

This is a know bug which mainly affects multi-core CPU systems. It is
fixed in RELENG_7, see also PR bin/121684 [1] where the relevant patch
is referenced.

[1] http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/121684

-cs




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