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Date:      Sat, 23 Feb 2008 16:46:45 +0100
From:      Guido Falsi <mad@madpilot.net>
To:        =?ISO-8859-1?Q?Eirik_=D8verby?= <ltning@anduin.net>
Cc:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   Re: UFS snapshot weirdness
Message-ID:  <47C03FE5.8030703@madpilot.net>
In-Reply-To: <78796912-6D98-4433-A5C9-622854C7DFB2@anduin.net>
References:  <79029E40-6E43-4482-8E39-D1DE49C8C53A@anduin.net>	<200802122311.43247.doconnor@gsoft.com.au>	<5B010AC7-C292-45E6-A109-20E39B370604@anduin.net>	<200802131851.15014.doconnor@gsoft.com.au> <78796912-6D98-4433-A5C9-622854C7DFB2@anduin.net>

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Eirik Øverby wrote:

> 
> I read somewhere else about NFS issues on 7-RC* where snapshots have 
> been used. In particular - and this is something I'm seeing too - 
> changing the exports file or reloading mountd gives the following in 
> messages log:
> 
> Feb 19 18:58:09 anduin mountd[38867]: can't delete exports for /tmp: 
> Invalid argument
> Feb 19 18:58:09 anduin mountd[38867]: can't delete exports for /usr: 
> Cross-device link
> Feb 19 18:58:09 anduin mountd[38867]: can't delete exports for /var: 
> Cross-device link
> Feb 19 18:58:09 anduin mountd[38867]: can't delete exports for 
> /export/home: Cross-device link
> Feb 19 18:58:09 anduin mountd[38867]: can't delete exports for /opt: 
> Cross-device link
> 
> Can this be related? I'm starting to worry here - what will be the 
> long-term consequences if snapshots are stuck around in this "invisible" 
> state?
> 

I have been experiencing these too. But it looks more like a bug in 
mountd, since it shows up only is snapshots are created with mount. If 
snapshots are created with mksnap_ffs this does not seem to show up.

I still have to make more in depth experiments, but before experimenting 
by myself I'd like to have some more informed directions on what to 
experiment.

-- 
Guido Falsi <mad@madpilot.net>



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