[linux-lvm] Snapshot on xfs filesystem

[linux-lvm] Snapshot on xfs filesystem

[Knollmueller Stefan]

hello,
we have got a serious problem doing snapshots on an xfs filesystem
(exported via nfs) while there is access to it via nfs or the fs being
only mounted by another machine via nfs.
in that case the machine hangs totally and the only possibilty left is
the kdb...
the problem does not occur if the fs is not mounted by another machine
in this case everything works just fine.
does anybody know what to do, is there a patch?

stefan

Re: [linux-lvm] Snapshot on xfs filesystem

[Heinz J . Mauelshagen]

On Wed, Aug 22, 2001 at 08:51:26AM +0200, Knollmueller Stefan wrote:
> hello,
> we have got a serious problem doing snapshots on an xfs filesystem
> (exported via nfs) while there is access to it via nfs or the fs being
> only mounted by another machine via nfs.
> in that case the machine hangs totally and the only possibilty left is
> the kdb...

Could you provide a kdb backtrace in that case, please?

> the problem does not occur if the fs is not mounted by another machine
> in this case everything works just fine.
> does anybody know what to do, is there a patch?

Not known so far -> no patch so far ;-)

> 
> stefan
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

[linux-lvm] Snapshot on xfs filesystem

[Knollmueller Stefan]

the kdb does not work - so backtrace is not possible...
anything else that could be done?

stefan

Re: [linux-lvm] Snapshot on xfs filesystem

[Heinz J . Mauelshagen]

On Wed, Aug 22, 2001 at 02:53:10PM +0200, Knollmueller Stefan wrote:
> the kdb does not work - so backtrace is not possible...
> anything else that could be done?

Well, we could try to sort out, that it is a LVM or XFS problem, in case
you could try a test configuration with EXT2 on LVM accessed via NFS
rather than XFS or XFS on a partition.

> 
> stefan
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

[linux-lvm] Snapshot on xfs filesystem

[Knollmueller Stefan]

hi,

when trying the same on an ext2 fs the machine keeps on running and
nothing special happens even if there is traffic via nfs.
seems to be a problem with xfs...

stefan

Re: [linux-lvm] Snapshot on xfs filesystem

[Heinz J . Mauelshagen]

On Thu, Aug 23, 2001 at 11:52:18AM +0200, Knollmueller Stefan wrote:
> hi,
> 
> when trying the same on an ext2 fs the machine keeps on running and
> nothing special happens even if there is traffic via nfs.
> seems to be a problem with xfs...

Did you get in touch with the XFS guys on it?

> 
> stefan
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@sistina.com
> http://lists.sistina.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html

-- 

Regards,
Heinz    -- The LVM Guy --

*** Software bugs are stupid.
    Nevertheless it needs not so stupid people to solve them ***

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Heinz Mauelshagen                                 Sistina Software Inc.
Senior Consultant/Developer                       Am Sonnenhang 11
                                                  56242 Marienrachdorf
                                                  Germany
Mauelshagen@Sistina.com                           +49 2626 141200
                                                       FAX 924446
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Re: [linux-lvm] Snapshot on xfs filesystem

[José Luis Domingo López]

On Thursday, 23 August 2001, at 11:52:18 +0200,
Knollmueller Stefan wrote:

> hi,
> 
> when trying the same on an ext2 fs the machine keeps on running and
> nothing special happens even if there is traffic via nfs.
> seems to be a problem with xfs...
> 
If I recall correctly from the Changelog, XFS snapshots appeared with
version 1.0.1 of the filesystem.

Greetings,

-- 
Jos� Luis Domingo L�pez
Linux Registered User #189436     Debian GNU/Linux Potato (P166 64 MB RAM)
 
jdomingo EN internautas PUNTO org  => � Spam ? Atente a las consecuencias
jdomingo AT internautas DOT   org  => Spam at your own risk

Re: [linux-lvm] Snapshot on xfs filesystem

[Martin K. Petersen]

>>>>> "Heinz" == Heinz J Mauelshagen <mauelshagen@sistina.com> writes:

>> when trying the same on an ext2 fs the machine keeps on running and
>> nothing special happens even if there is traffic via nfs.  seems to
>> be a problem with xfs...

Heinz> Did you get in touch with the XFS guys on it?

Well, I'm listening and it's on my list of things to look into.

-- 
Martin K. Petersen, Principal Linux Consultant, Linuxcare, Inc.
mkp@linuxcare.com, http://www.linuxcare.com/
SGI XFS for Linux Developer, http://oss.sgi.com/projects/xfs/