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RE: Xfs prblems with clearcase mvfs

To: lord@xxxxxxx
Subject: RE: Xfs prblems with clearcase mvfs
From: Imad.Ossaily@xxxxxxxxx
Date: Wed, 18 Jul 2001 18:06:20 +0300
Cc: knuffie@xxxxxxxxx, Ext-Kamaljeet.Singh@xxxxxxxxx, linux-xfs@xxxxxxxxxxx
Sender: owner-linux-xfs@xxxxxxxxxxx
we have recomiled the mvfs module against the running kernel version with
XFS support, so this is not the source of the problem.
The error messages that I'm getting while trying to load the module are:

[root@t1-dhcp2-027231 mvfs]# insmod mvfs
Using /lib/modules/fs/mvfs.o
Structure_check error for struct super_operations.  MVFS expected 56, got 64
Structure_check error for struct inode_operations.  MVFS expected 64, got 76
Structure_check error for struct file_operations.  MVFS expected 68, got 64
Structure_check error for struct super_block.  MVFS expected 500, got 464
Structure_check error for struct inode.  MVFS expected 472, got 456
Structure_check error for struct dentry.  MVFS expected 116, got 112
ERROR: MVFS detected 6 structure size mismatches
/lib/modules/fs/mvfs.o: init_module: Invalid argument
Hint: insmod errors can be caused by incorrect module parameters, including
invalid IO or IRQ parameters

regards,
Imad.

> -----Original Message-----
> From: ext Steve Lord [mailto:lord@xxxxxxx]
> Sent: Wednesday, July 18, 2001 5:53 PM
> To: Ossaily Imad (NET/Helsinki)
> Cc: knuffie@xxxxxxxxx; Singh Kamaljeet (EXT-TataCS/Helsinki);
> linux-xfs@xxxxxxxxxxx
> Subject: Re: Xfs prblems with clearcase mvfs 
> 
> 
> > we can't upgrade to XFS-1.0.1 because it's supported for 
> kernel 2.4.5 and
> > ClearCase 4.1 on linux is supported only for kernel 2.4.2, 
> so we have to use
> > this version of the kernel.
> 
> And this is exactly your problem, if clearcase is built against the
> original kernel shipped by redhat then it will almost certainly not
> work with the xfs kernel. Running a binary kernel module against a
> different kernel than it was built for is almost certainly not going
> to work in this case the only people who can help you with 
> this is clearcase.
> 
> What I would like to see to confirm this is the exact error 
> messages you
> are getting.
> 
> Thanks
> 
>   Steve
> 
> 
> > 
> > regards,
> > Imad.
> > 
> > > -----Original Message-----
> > > From: ext Seth Mos [mailto:knuffie@xxxxxxxxx]
> > > Sent: Wednesday, July 18, 2001 5:35 PM
> > > To: Singh Kamaljeet (EXT-TataCS/Helsinki); linux-xfs@xxxxxxxxxxx
> > > Cc: Ossaily Imad (NET/Helsinki)
> > > Subject: Re: Xfs prblems with clearcase mvfs
> > > 
> > > 
> > > At 17:29 18-7-2001 +0300, Ext-Kamaljeet.Singh@xxxxxxxxx wrote:
> > > >Hi,
> > > >We are facing problems with xfs version 1.0 (with kernel 
> > > 2.4.2-2 on Redhat
> > > >7.1) with Clearcase version 4.1 for linux. when we try to 
> > > load mvfs module,
> > > >it gives structure check errors for following structures:
> > > >Super-operations
> > > >inode-operations
> > > >File-operations
> > > >Super-block
> > > >inode
> > > >dentry
> > > >
> > > >Could you please look into it and suggest us some good 
> > > solution. We can
> > > >provide more details if required.
> > > 
> > > Can you upgrade to the 1.0.1 release? That one has many 
> > > fixes, tlhough I am 
> > > not quite sure if it fixes this.
> > > 
> > > Bye
> > > 
> > > --
> > > Seth
> > > Every program has two purposes one for which
> > > it was written and another for which it wasn't
> > > I use the last kind.
> > > 
> 
> 


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