[Ocfs2-users] ocfs2_delete_inode kernel bug

[Andre Nathan]

I've just updated the bug report with a link to two VirtualBox VMs and
instructions to reproduce the bug using them.

I hope this helps with finding the problem.

Thanks
Andre


On Thu, 2010-11-04 at 14:06 -0200, Andre Nathan wrote:
> Hello Sunil
> 
> I have created a simpler environment for testing, and managed to
> reproduce this, so I opened a new bug as you suggested:
> 
>   http://oss.oracle.com/bugzilla/show_bug.cgi?id=1297
> 
> If there's any other info I can provide, please advise.
> 
> Thanks,
> Andre
> 
> 
> On Tue, 2010-10-26 at 17:17 -0700, Sunil Mushran wrote:
> > On 10/26/2010 10:39 AM, Andre Nathan wrote:
> > > On Tue, 2010-10-26 at 10:14 -0700, Sunil Mushran wrote:
> > >> So the backup server is not part of the cluster but yet reading the
> > >> same block device. As long as it is only reading, it should not affect
> > >> the two nodes, but I will not trust the backup.
> > >>
> > >> The error mentions the inode#. Has it changed?
> > > Hmm, interesting. I went through the logs and the -17 error happens
> > > multiple times, but only three inodes are mentioned. Here are the
> > > counts:
> > >
> > >        2 ERROR: Inode 16660075
> > >       42 ERROR: Inode 16666654
> > >       46 ERROR: Inode 8528370
> > >
> > > I checked the logs I had submitted previously and also only four inode
> > > numbers show up, but they're different than the ones in this log.
> > >
> > >       53 ERROR: Inode 16597043
> > >       53 ERROR: Inode 16597837
> > >        6 ERROR: Inode 16656380
> > >      198 ERROR: Inode 16664401
> > >
> > >> Also, is this the mainline kernel?
> > > No, it's Ubuntu 10.10's kernel.
> > 
> > That means the fsck fixed the older orphaned inodes. That it is
> > happening with 10.10 is troubling. Are you sure all nodes are on 10.10?
> > 
> > Also, do the errors match the ones in this bz.
> > http://oss.oracle.com/bugzilla/show_bug.cgi?id=1215
> > 
> > If so, file a new bz. Mention #1215. But don't reopen the older one.
> > One problem is that 10.10 ships an older ocfs2-tools. debugfs.ocfs2
> > 1.4.4 prints orphaned_slot in the inode. So we cannot gather info
> > easily.
> > 
> > One solution is for you to attach the raw blocks of the 4 inodes.
> > 
> > For inode#16664401, the command would be:
> > # dd if=/dev/sdX of=/tmp/blk16664401 bs=4K skip=16664401 count=1
> > Attach /tmp/blk16664401.
> > 
> > Sunil
> > 
> > 
> > 
> > 
> 
> 
> 
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