[linux-lvm] snapshots not stable with 2.3.99pre2

Heinz Mauelshagen mauelsha at ez-darmstadt.telekom.de
Wed Mar 22 17:25:17 UTC 2000

> While testing lvm with linux 2.3.99pre2 I had 2 crashes while trying out snapshots.
> Without snapshots lvm seems to be stable.

Investigating in the area of trouble with 2.3.99pr2 kio support...

> Another problem is (probably) a missing check in lvextend: I tried to extend a
> striped lv, and while I had enough space available, nearly all this space was on
> one pv, so it was not possible to create a correctly striped volume with the 
> extended size. But I didn't get the error message I expected: lvextend told me
> everything is ok, but when I tried to ext2resize the filesystem, I got a 
> segmentation fault.

Could you provide more configuration information by "vgdisplay -v" on the
involved VG, a "lvextend -d" stdout/stderr and an "strace ext2resize" of your
try, please.

Do you get any segfaults when you just read/write to the extended part
of the Logical Volume with dd?



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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