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From: Dave Chinner <david@fromorbit.com>
To: Michael Maier <m1278468@allmail.net>
Cc: Eric Sandeen <sandeen@sandeen.net>, xfs@oss.sgi.com
Subject: Re: Failure growing xfs with linux 3.10.5
Date: Tue, 13 Aug 2013 10:54:14 +1000	[thread overview]
Message-ID: <20130813005414.GT12779@dastard> (raw)
In-Reply-To: <5209126F.5020204@allmail.net>

On Mon, Aug 12, 2013 at 06:50:55PM +0200, Michael Maier wrote:
> Eric Sandeen wrote:
> > On 8/11/13 2:11 AM, Michael Maier wrote:
> >> Hello!
> >>
> >> I think I'm facing the same problem as already described here:
> >> http://thread.gmane.org/gmane.comp.file-systems.xfs.general/54428
> > 
> > Maybe you can try the tracing Dave suggested in that thread?
> 
> I sent you a trace.
> 
> 
> 
> 
> Meanwhile, I faced another problem on another xfs-file system with linux
> 3.10.5 which I never saw before. During writing a few bytes to disc, I
> got "disc full" and the writing failed.
> 
> At the same time, df reported 69G of free space! I ran xfs_repair -n and
> got:
> 
> 
> xfs_repair -n /dev/mapper/raid0-daten2
> Phase 1 - find and verify superblock...
> Phase 2 - using internal log
>         - scan filesystem freespace and inode maps...
> sb_ifree 591, counted 492
> ^^^^^^^^^^^^^^^^^^^^^^^^^
> What does this mean? How can I get rid of it w/o loosing data? This file
> system was created a few days ago and never resized.

Superblock inode counting is lazy - it can get out of sync in after
an unclean shutdown, but generally mounting a dirty filesystem will
result in it being recalculated rather than trusted to be correct.
So there's nothing to worry about here.

> Phase 7 - verify link counts...
> No modify flag set, skipping filesystem flush and exiting.

Ok, - it was a no-modify run, so it wouldn't have complained about a
dirty log needing replay. Hence the counters are probably out
because the filesystem has a dirty log.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com

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  reply	other threads:[~2013-08-13  0:54 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-11  7:11 Failure growing xfs with linux 3.10.5 Michael Maier
2013-08-11 18:36 ` Eric Sandeen
2013-08-12 16:50   ` Michael Maier
2013-08-13  0:54     ` Dave Chinner [this message]
2013-08-13 14:55       ` Michael Maier
2013-08-14  5:43         ` Dave Chinner
2013-08-14 15:16           ` Michael Maier
2013-08-15  0:58             ` Dave Chinner
2013-08-15 18:14               ` Michael Maier
     [not found]   ` <52090C6C.6060604@allmail.net>
2013-08-13  0:04     ` Dave Chinner
2013-08-13 15:30       ` Michael Maier
2013-08-14  5:53         ` Stan Hoeppner
2013-08-14 15:05           ` Michael Maier
2013-08-14 17:31             ` Stan Hoeppner
2013-08-14 18:13               ` Michael Maier
2013-08-14 22:20                 ` Stan Hoeppner
2013-08-15 17:05                   ` Michael Maier
2013-08-14  6:20         ` Dave Chinner
2013-08-14 16:20           ` Michael Maier
2013-08-14 16:37             ` Eric Sandeen
2013-08-15 17:18             ` Eric Sandeen
2013-08-15 17:55               ` Michael Maier
2013-08-15 18:14                 ` Eric Sandeen
2013-08-15 18:35                   ` Michael Maier
2013-08-15 18:42                     ` Eric Sandeen
2013-08-14 16:51           ` Eric Sandeen

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