Question about EXT3 error messages in /var/log/messages

[Mark Basil]

It very well could mean either.  Something caused the corruption, which
could hint to the drive going bad.  I'd say 90% of the time, an fsck
will correct an error like this.

Before the fsck, you might want to do some digging as to which
directories contain those corrupt files if you care to know where the
corruption occurred.

Search your other logs around that timeframe, Apr 12 04:08:09, and see
what processes got kicked off and were reading/writing the filesytem.

Also, I'm not sure exactly how to directly get the directory name for an
inode, but you can list the contents of that directory, and go from
there.

Also, I don't know what happens when you try and load up RAID drives
into debugfs as I've never done it, but if you CAN do it, here how it
would be done:

$ debugfs

debugfs: open /dev/md2
debugfs: ls <2670595>

That should give you the contents of that directory.  Take a filename
from there, and do a find or locate on it if it's not obvious at the
time.

Good luck.

-Mark B.

On Wed, 2004-04-14 at 15:10, Mark Cuss wrote:
> Okay - so it is the major and minor numbers - thanks!  That means that md2
> is the culprit...
> 
> Does this mean that I have a drive failing in this raid or could the
> filesystem just need an fsck?
> 
> Thanks
> Mark
> 
> ----- Original Message ----- 
> From: "Mark Basil" <mbasil at alabanza.com>
> To: <mcuss at cdlsystems.com>
> Cc: <ext3-users at redhat.com>
> Sent: Wednesday, April 14, 2004 1:08 PM
> Subject: Re: Question about EXT3 error messages in /var/log/messages
> 
> 
> > Mark C.,
> >
> > Try
> >
> > ls -l /dev/ | grep "9,   2"
> >
> > -Mark B.
> >
> > On Wed, 2004-04-14 at 14:43, Mark Cuss wrote:
> > > Hello list
> > >
> > > I've been having the following error messages pop up in my kernel log:
> > >
> > > Apr 12 04:08:09 hal kernel: EXT3-fs error (device md(9,2)):
> ext3_readdir:
> > > bad entry in directory #2670595: rec_len %% 4 != 0 - offset=0,
> > > inode=827218527, rec_len=20275, name_len=73
> > > Apr 12 04:08:14 hal kernel: EXT3-fs error (device md(9,2)):
> ext3_readdir:
> > > bad entry in directory #2670596: rec_len %% 4 != 0 - offset=0,
> > > inode=861103477, rec_len=95, name_len=95
> > > Apr 12 04:08:17 hal kernel: EXT3-fs error (device md(9,2)):
> ext3_readdir:
> > > bad entry in directory #2670597: rec_len %% 4 != 0 - offset=0,
> > > inode=1601531495, rec_len=30819, name_len=120
> > > Apr 12 04:08:20 hal kernel: EXT3-fs error (device md(9,2)):
> ext3_readdir:
> > > bad entry in directory #2670598: rec_len %% 4 != 0 - offset=0,
> > > inode=1634890872, rec_len=29795, name_len=111
> > > Apr 12 04:08:32 hal kernel: EXT3-fs error (device md(9,2)):
> ext3_readdir:
> > > bad entry in directory #2670599: rec_len %% 4 != 0 - offset=0,
> > > inode=1951614277, rec_len=12337, name_len=95
> > >
> > > I've done some searching and talked to some people on another mailing
> > > list...  I can't seem to figure out which device these errors occur
> on...
> > > I'd been told that the "device md(9,2)" ID indicates major 9 and minor
> 2,
> > > and I've also been told that the 9 is the SCSI channel once 8 is
> subtracted
> > > from is (so, 1 in this case), and that 2 is the SCSI Id of the offending
> > > device in that channel.
> > >
> > > So, I'm a little lost here.  I figured the experts here could let me
> know
> > > how to map the reported ID numbers to a physical disk or RAID device.
> > >
> > > Thanks in advance!
> > >
> > > Mark
> > >
> > > Mark Cuss, B. Sc.
> > > Real Time Systems Analyst
> > > System Administrator
> > > CDL Systems Ltd
> > > Suite 230
> > > 3553 - 31 Street NW
> > > Calgary, AB, Canada
> > >
> > > Phone: 403 289 1733 ext 226
> > > Fax: 403 282 1238
> > > www.cdlsystems.com
> > >
> > >
> > >
> > > _______________________________________________
> > > Ext3-users mailing list
> > > Ext3-users at redhat.com
> > > https://www.redhat.com/mailman/listinfo/ext3-users
> > >
> >
> >
> 
> 
> 
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