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From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: Eric Sandeen <sandeen@redhat.com>
Cc: ext4 development <linux-ext4@vger.kernel.org>
Subject: Re: mballoc errors
Date: Thu, 27 Mar 2008 09:18:05 +0530	[thread overview]
Message-ID: <20080327034805.GA7137@skywalker> (raw)
In-Reply-To: <47EAC302.5040109@redhat.com>

On Wed, Mar 26, 2008 at 04:41:22PM -0500, Eric Sandeen wrote:
> This report just came in on the fedora list...
> 
> EXT4-fs error (device dm-0): ext4_mb_generate_buddy: EXT4-fs: group 717:
> 23410 blocks in bitmap, 23411 in gd
> 
> EXT4-fs error (device dm-0): ext4_mb_generate_buddy: EXT4-fs: group 721:
> 19309 blocks in bitmap, 19333 in gd
> 
> has anyone else seen this problem in testing?  I guess it means
> freespace accounting got out of sync...?
> 

The bitmap or group desc is corrupt. The number of free blocks counted
via bitmap and found via desc->bg_free_blocks_count are not same. We
fall back to one calculated the bitmap.

-aneesh

  parent reply	other threads:[~2008-03-27  3:48 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-26 21:41 mballoc errors Eric Sandeen
2008-03-26 23:23 ` Bernd Schubert
2008-03-26 23:31 ` Mingming Cao
2008-03-27  3:48 ` Aneesh Kumar K.V [this message]
2008-03-27  7:53 ` Solofo.Ramangalahy
2008-03-28 14:03 ` Valerie Clement
     [not found]   ` <20080331065802.GA19456@skywalker>
     [not found]     ` <47F0FBFE.7060404@bull.net>
2008-03-31 20:18       ` Aneesh Kumar K.V
2008-03-31 20:50         ` [PATCH] fix file system corruption [ was Re: mballoc errors ] Aneesh Kumar K.V
2008-04-01  8:38           ` Valerie Clement
2008-04-01  9:01             ` Aneesh Kumar K.V
2008-04-01  9:46               ` Valerie Clement

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