[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <000f01ce47ec$ca7767c0$5f663740$@ntlworld.com>
Date: Fri, 3 May 2013 11:55:56 +0100
From: "Stephen Elliott" <techweb@...world.com>
To: "'Andreas Dilger'" <adilger@...ger.ca>
Cc: <linux-ext4@...r.kernel.org>
Subject: RE: 2nd Attempt - FSCK Errors
Any feedback to this folks???
-----Original Message-----
From: Stephen Elliott [mailto:techweb@...world.com]
Sent: 30 April 2013 18:59
To: 'Andreas Dilger'
Cc: '<linux-ext4@...r.kernel.org>'
Subject: RE: 2nd Attempt - FSCK Errors
Hi,
To further add, I ran the debugfs on the backup server but the output was
strange:
chaos:~# ls -i /c/PREMIER
11141250 Premier Automation Purchase OrdersApp V18.5_Backup.mdb
11141790 Premier Automation Purchase OrdersApp V18.5.ldb
11142379 Premier Automation Purchase OrdersApp V18.5.mdb
11142332 PremierData.ldb
11142439 PremierData.mdb
11141128 Premier Y
11141129 Robots Bakups DO NOT USE SEE PDW
11141130 UpdateDrivers
11141252 Wkb.xwb
11141253 Workbench.xwb
chaos:~# .[3Pmount /dev/c/c
chaos:~# debugfs -c -R stat '<11142379>'
/dev/c/c......................[1P......[1@'
debugfs 1.41.14 (22-Dec-2010)
/dev/c/c: catastrophic mode - not reading inode or group bitmaps
Inode: 11142379 Type: bad type Mode: 0000 Flags: 0x0
Generation: 0 Version: 0x00000000
User: 0 Group: 0 Size: 0
File ACL: 0 Directory ACL: 0
Links: 0 Blockcount: 0
Fragment: Address: 0 Number: 0 Size: 0
ctime: 0x00000000 -- Thu Jan 1 00:00:00 1970
atime: 0x00000000 -- Thu Jan 1 00:00:00 1970
mtime: 0x00000000 -- Thu Jan 1 00:00:00 1970 Size of extra inode fields: 0
BLOCKS:
I suspect there may be another issue here with this tool on the ReadyNAS
devices.
Many Thanks
Stephen Elliott
-----Original Message-----
From: Stephen Elliott [mailto:techweb@...world.com]
Sent: 30 April 2013 17:26
To: 'Andreas Dilger'
Cc: '<linux-ext4@...r.kernel.org>'
Subject: RE: 2nd Attempt - FSCK Errors
Hi,
Appreciate the help...
As requested:
despair:/c/PREMIER# lsattr "Premier Automation Purchase OrdersApp V18.5.mdb"
-------------e- Premier Automation Purchase OrdersApp V18.5.mdb
What does this mean???
The file is important as it is an Orders database and is backed up daily :)
So far no actual issues experienced with using the file (MS Access DB)
I can perhaps run that debugfs command but to be clear I assume there is no
risk providing I unmount the FS beforehand? How big is the file generated
likely to be, ball park?
As for the other options of updating, I am somewhat bound by the FW versions
the ReadyNAS units use, unless I start messing with it, which would likely
void any warranty anyway.
Many Thanks
Stephen Elliott
-----Original Message-----
From: Andreas Dilger [mailto:adilger@...ger.ca]
Sent: 30 April 2013 17:15
To: <techweb@...world.com>
Cc: <linux-ext4@...r.kernel.org>
Subject: Re: 2nd Attempt - FSCK Errors
On 2013-04-30, at 8:00, "Stephen Elliott" <techweb@...world.com> wrote:
> Just rebooted my box today after 200 days uptime and thought I'd request a
volume scan and it found errors! I've never had a power outage etc so am
keen to know what could have caused this file system corruption? Anyu
ideas???
>
> I'm running 4.2.21 on a ReadyNAS Pro6, but ultimately it is a Linux
(Debian) 2.6.37.6. based system underneath.
>
> ***** File system check forced at Fri Apr 26 20:08:38 WEST 2013 *****
> fsck 1.41.14 (22-Dec-2010) e2fsck 1.42.3 (14-May-2012) Pass 1:
> Checking inodes, blocks, and sizes Inode 4195619, i_blocks is 3135728,
> should be 3135904. Fix? yes
This is because the inode shows 176 sectors = 22 filesystem blocks allocated
than expected. Is this perhaps an extent format file? Try "lsattr
{filename}" and look for "e" in the file flags.
> Running additional passes to resolve blocks claimed by more than one
inode...
> Pass 1B: Rescanning for multiply-claimed blocks Multiply-claimed block(s)
in inode 4195619: 167904376 167904377 167904378 167904379 167904380
167904381 167904382 167904383 167904384 167904385 167904386 167949296
167949297 167949298 167949299 167949300 167949301 167949302 167949303
167949304 167949305 167949306 Pass 1C: Scanning directories for inodes with
multiply-claimed blocks Pass 1D: Reconciling multiply-claimed blocks (There
are 1 inodes containing multiply-claimed blocks.
This is consistent with the one inode suddenly growing 22 blocks longer.
> File /PREMIER/Premier Automation Purchase OrdersApp V18.5.mdb (inode
> #4195619, mod time Fri Apr 26 20:07:42 2013) has 22 multiply-claimed
block(s), shared with 0 file(s):
> Multiply-claimed blocks already reassigned or cloned.
This could be failing if the duplicate blocks are inside the same file?
I don't know if that is something that e2fsck expects or not? I wonder if
the extent tree is corrupted in some manner, but it isn't being detected
during the duplicate block scan.
This file looks big and important, so the first thing I would suggest is to
make a backup copy of it ASAP if you haven't already (having a backup is
always a good idea). Then, I'd suggest to update to the latest e2fsprogs
1.42.7 and try again, since there was a bug fixed in the e2fsck extent
handling.
If that doesn't fix it, please dump the allocated file blocks with "debugfs
-c -R 'stat <4195619>' /dev/c/c" so we can see what it looks like (probably
gzipped and as an attachment, since it will be pretty large).
Cheers, Andreas=
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists