Date: Tue, 14 Jan 2014 08:16:43 +0000
From: Hugo Mills <hugo@carfax.org.uk>
To: Chris Murphy <lists@colorremedies.com>
Cc: Hendrik Friedel <hendrik@friedels.name>,
        linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: btrfsck does not fix
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On Mon, Jan 13, 2014 at 05:40:33PM -0700, Chris Murphy wrote:
> I see no obvious hardware source for the problem, SATA Phy Event Counters are zeros except a few COMRESET events which is pretty minor. No ICRC or UDMA-CRC errors recorded. No reallocated or pending bad sectors.
> 
> I'd look at your historical system logs, messages or journalctl, and do case insensitive search for: err, unc, reset and see if anything along those lines has been reported that might explain it.
> 
> If you decide to backup, reformat, restore, then first I suggest 
> 
> btrfs-image -c 9-t 4 /dev/sdX /mnt/<pathtoanothervolume+filename>

btrfs-image -c 9 -t 4 /dev/sdX /mnt/<pathtoanothervolume+filename>

   Space between the 9 and the -t.

   Hugo.

> You can keep it handy in case a dev asks for it or you can attach it to a kernel.org bug report.
> 
> Chris Murphy--
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-- 
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
  PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
    --- I think that everything darkling says is actually a joke. ---    
         It's just that we haven't worked out most of them yet.          

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