new kernel breaks striped dmraid

[Heinz Mauelshagen]

James,

this is what the fix creates for the mapping table:

0 19028736 striped 3 128 /dev/hde 0 /dev/hdf 0 /dev/hdg 0

No striped target complaints on 2.6.16.*

Heinz

On Thu, Apr 06, 2006 at 07:12:53AM -0500, James Olson wrote:
> Hi Heinz,
> Here is the metadata for my sil 680.  Thanks for looking into it. Smiles!
>     -James
> > ----- Original Message -----
> > From: "Heinz Mauelshagen" <mauelshagen at redhat.com>
> > To: "ATARAID (eg, Promise Fasttrak,  Highpoint 370) related discussions" 
> > <ataraid-list at redhat.com>
> > Subject: Re: new kernel breaks striped dmraid
> > Date: Thu, 6 Apr 2006 10:22:40 +0200
> >
> >
> >
> > James,
> >
> > I've got a fix in my devel code base for this and I'm waiting for
> > user confirmation in a couple of cases where the bug hit in order
> > to do another release.
> >
> > BTW: do I have your metadata yet
> >       (dmraid -rD;tar jcvf James-Olson-raid0.tar.bz2 *.{dat,size,offset})
> >       in order to confirm it fixes your case as well ?
> >
> > FYI: the reason why this flaw doesn't hit in many (most?) cases is,
> >       that the size the metadata reports *is* a multiple of the stride
> >       (called chunk in dm) size.
> >
> > Regards,
> > Heinz
> >
> > On Thu, Mar 30, 2006 at 07:44:08PM -0500, James Olson wrote:
> > >  Hello Heinz,
> > > I tried the newly updated redhat FC5 kernel 2.6.16-1.2080_FC5 and # dmraid -ay fails with a 
> > > kernel error:
> > > Mar 30 05:59:04 localhost kernel: device-mapper: dm-stripe: Target length not divisible by > 
> > chunk size
> > > Mar 30 05:59:04 localhost kernel: device-mapper: error adding target to table
> > >
> > > I think this is related to the "dm stripe: Fix bounds" patch shown at
> > >
> > > http://lkml.org/lkml/2006/3/16/120
> > >
> > > I am running:
> > > dmraid version:         1.0.0.rc10 (2006.02.17) debug
> > > dmraid library version: 1.0.0.rc10 (2006.02.17)
> > > device-mapper version:  4.5.0
> > >
> > >           -James
> > >
> > > -- _______________________________________________
> > >
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> > >
> > > _______________________________________________
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> >
> > --
> >
> > Regards,
> > Heinz    -- The LVM Guy --
> >
> > *** Software bugs are stupid.
> >      Nevertheless it needs not so stupid people to solve them ***
> >
> > =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >
> > Heinz Mauelshagen                                 Red Hat GmbH
> > Consulting Development Engineer                   Am Sonnenhang 11
> > Storage Development                               56242 Marienrachdorf
> >                                                    Germany
> > Mauelshagen at RedHat.com                            PHONE +49  171 7803392
> >                                                    FAX   +49 2626 924446
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> >
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> 
> >
> 
> 
> -- 
> _______________________________________________
> 
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Heinz Mauelshagen                                 Red Hat GmbH
Consulting Development Engineer                   Am Sonnenhang 11
Storage Development                               56242 Marienrachdorf
                                                  Germany
Mauelshagen at RedHat.com                            PHONE +49  171 7803392
                                                  FAX   +49 2626 924446
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