[linux-lvm] Please help with lvextend problems

[linux-lvm] Please help with lvextend problems

[Bob Alexander]

Trying to enlarge a LV after adding a new PV to the VG.

I get an horrible string of messages:

lvextend -L+400M /dev/vg1/lvusr
Extending logical volume lvusr to 3.09GB
Inconsistent length 66 71
PV segment pe_alloc_count mismatch: 1436 != 1520
PV segment VG free_count mismatch: 1570 != 1486
Internal error: PV segments corrupted in vg1

Am I toast ???

Here follows some additional data. Thank you
Bob Alexander

bob@t40:~$ uname -a
Linux t40 2.6.11.4T40237392G-RJA #1 Mon Mar 28 19:36:30 CEST 2005 i686 
GNU/Linux
t40:/home/bob# pvdisplay
   --- Physical volume ---
   PV Name               /dev/hda9
   VG Name               vg1
   PV Size               6.77 GB / not usable 0
   Allocatable           yes
   PE Size (KByte)       4096
   Total PE              1733
   Free PE               313
   Allocated PE          1420
   PV UUID               CSxEXj-LPQv-VAlv-gTxv-zLfa-2dZ4-MGN7T1

   --- Physical volume ---
   PV Name               /dev/hda8
   VG Name               vg1
   PV Size               4.97 GB / not usable 0
   Allocatable           yes
   PE Size (KByte)       4096
   Total PE              1273
   Free PE               1273
   Allocated PE          0
   PV UUID               FmDlz8-gBJ6-oH5X-Cg26-ZDdm-pTSh-obtzqG
t40:/home/bob# vgdisplay
   --- Volume group ---
   VG Name               vg1
   System ID
   Format                lvm2
   Metadata Areas        2
   Metadata Sequence No  19
   VG Access             read/write
   VG Status             resizable
   MAX LV                0
   Cur LV                5
   Open LV               5
   Max PV                0
   Cur PV                2
   Act PV                2
   VG Size               11.74 GB
   PE Size               4.00 MB
   Total PE              3006
   Alloc PE / Size       1420 / 5.55 GB
   Free  PE / Size       1586 / 6.20 GB
   VG UUID               sLbPHD-Fxe8-sMkh-pMk8-dvgK-2c8K-DKCEt8
t40:/home/bob# lvdisplay /dev/vg1/lvusr
   --- Logical volume ---
   LV Name                /dev/vg1/lvusr
   VG Name                vg1
   LV UUID                PeGQ6L-dqE6-KH7G-ErcU-pzAD-A6JM-ZEHM6x
   LV Write Access        read/write
   LV Status              available
   # open                 1
   LV Size                2.70 GB
   Current LE             690
   Segments               2
   Allocation             inherit
   Read ahead sectors     0
   Block device           254:1

Re: [linux-lvm] Please help with lvextend problems

[Bob Alexander]

Alasdair G Kergon wrote:
> On Mon, Sep 05, 2005 at 04:03:32PM +0200, Bob Alexander wrote:
> 
>>Internal error: PV segments corrupted in vg1
> 
>  
> No - that's an assertion that triggers as the last thing
> *before* any metadata changes are made on disk.
> 
> First check you're using the latest lvm2 package.
> (Run 'lvm version')
> 
> Alasdair

Al,
thanks for trying to help.

Not sure I understand what you say (English is a bit exotic for me :->).

In any case here is what you request:

bob@t40:~$ sudo lvm version
   LVM version:     2.01.12 (2005-06-14)
   Library version: 1.01.03 (2005-06-13)
   Driver version:  4.4.0

FWIW I am using LVM2 on my customized Debian system with a 2.6.11 kernel 
(and need to resize my bloody /usr to go to 2.6.13 :-< ).

Take care,
Bob

Re: [linux-lvm] Please help with lvextend problems

[Alasdair G Kergon]

On Mon, Sep 05, 2005 at 04:03:32PM +0200, Bob Alexander wrote:
> Internal error: PV segments corrupted in vg1
 
No - that's an assertion that triggers as the last thing
*before* any metadata changes are made on disk.

First check you're using the latest lvm2 package.
(Run 'lvm version')

Alasdair
-- 
agk@redhat.com

Re: [linux-lvm] Please help with lvextend problems

[Bob Alexander]

Bob Alexander wrote:
> bob@t40:~$ sudo lvm version
>   LVM version:     2.01.12 (2005-06-14)
>   Library version: 1.01.03 (2005-06-13)
>   Driver version:  4.4.0

FWIW after backing up data I tried to be brave :-)

Booted off a 2005.1 Gentoo LiveCD and used the lvm of this distro 
(version 2.91.05 2005-04-04) to resize the LV and it worked just fine.

I therefore still believe version 2.01.12 (at least, cannot say for the 
more recent ones) has a buglet.

Thank you
Bob