[linux-lvm] LVM in stock kernel!?

Heinz Mauelshagen mauelsha at ez-darmstadt.telekom.de
Mon Aug 23 09:50:18 UTC 1999


Hi Pascal and all 8*)

> 
> On Sun, Aug 22, 1999 at 01:14:36PM +0000, Heinz Mauelshagen wrote:
> > 
> > Hi Pascal,
> > 
> > saw your mail today concerned with writes beyond the end of the device,
> > Have seen this a couple of times before 8*(
> > 
> > It was a kernel problem in the block i/o layer these days not forced
> > by the LVM but brougt to the surface by the heavy i/o load LVM striped 
> > LVs pushed to the system.
> 
> It was a problem.... Mmmm. In 2.3.14 it still is.
> 
> > 
> > Do you see the same trouble with LVM 0.7 in older kernel releases?
> 
> 2.3.13 and the 2.3.14-pre release gave the same problem. I don't
> know about earlier releases.

Oops, should have been more precise 8*)

I ment earlier versions because i've observed the 'beyond end of device'
behaviour with 2.3.13 by myself.

> Shall we bring this up to the linux kernel list?

Yes please.
Do it.

> The MD users should
> have noticed it too. Indeed there was VERY heavy I/O
> on the stripes.
> 
> BTW: 2.3.14 needed a little extra patch wrt the 2.3.13 LVM patch. Some-
> body will have ported it too, if not say so, and I'll mail you the diff.
> 
--

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Systemmanagement CS-TS                           T-Nova
                                                 Entwicklungszentrum Darmstadt
Heinz Mauelshagen                                Otto-Roehm-Strasse 71c
Senior Systems Engineer                          Postfach 10 05 41
                                                 64205 Darmstadt
mge at ez-darmstadt.telekom.de                      Germany
                                                 +49 6151 886-425
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