Re: 2.6.34 ext4_mb_free_metadata: Double free of blocks

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On Mon, 28 Jun 2010 01:05:28 +0200 Ragnar Hojland Espinosa <ragnar@xxxxxxxxxxxxxxxxxx> wrote:

> Moving about 200 GB through the network out of the computer (vanilla
> 2.6.34, sata_via sata device), after it finished I noticed:
> 
> EXT4-fs error (device sda1): ext4_mb_free_metadata: Double free of
> blocks 20764 (20764 395)
> JBD: Spotted dirty metadata buffer (dev = sda1, blocknr = 0). There's
> a risk of filesystem corruption in case of system crash..
> 
> So I proceeded to umount and fsck.
> 
> # umount /vol3/
> # fsck -f /vol3/
> fsck from util-linux-ng 2.17.2
> e2fsck 1.41.11 (14-Mar-2010)
> Pass 1: Checking inodes, blocks, and sizes
> Pass 2: Checking directory structure
> Pass 3: Checking directory connectivity
> Pass 4: Checking reference counts
> Pass 5: Checking group summary information
> Free blocks count wrong for group #6764 (17193, counted=16798).
> Fix<y>? yes
> 
> Free blocks count wrong (44974340, counted=44973945).
> Fix<y>? yes
> 
> FWIW.

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