Bug#326853: lvm2: Impossible resizing LVs after using vgextend

[Robert Alexander]

Package: lvm2
Version: 2.01.12-2
Severity: important


Dear friends,
first of all thank you for your work supporting all of us Debian addicts.

My initial VG (vg1) was mapped onto my /dev/hda8 partition which resided
on my /dev/hda3 extended partition.

After some resizing and moving of the partitions I created a NEW
/dev/hda7 PV and used vgextend to assign it to my vg1 volume group.
The "old" PV now lives on the /dev/hda8 partition.

After this I tried extending my /dev/vg1/lvusr filesystem but got the
following errors:

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

Luckily the LV are still usable and only resizing looks to have problems.

Here follows some more debugging information:

bob at 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
bob at 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

fdisk -l /dev/hda
Disk /dev/hda: 80.0 GB, 80026361856 bytes
240 heads, 63 sectors/track, 10337 cylinders
Units = cylinders of 15120 * 512 = 7741440 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1        3373    25499848+   7  HPFS/NTFS
/dev/hda3            3374        9914    49449960    f  W95 Ext'd (LBA)
/dev/hda5            3374        8132    35978008+   b  W95 FAT32
/dev/hda6            8133        8268     1028128+  82  Linux swap /
Solaris
/dev/hda7   *        8269        8285      128488+  83  Linux
/dev/hda8            8286        8975     5216368+  8e  Linux LVM
/dev/hda9            8976        9914     7098808+  8e  Linux LVM

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.11.4T40237392G-RJA
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=ISO-8859-1)

Versions of packages lvm2 depends on:
ii  debconf                     1.4.51       Debian configuration management sy
ii  libc6                       2.3.2.ds1-22 GNU C Library: Shared libraries an
ii  libdevmapper1.01            2:1.01.03-1  The Linux Kernel Device Mapper use
ii  lvm-common                  1.5.19       The Logical Volume Manager for Lin

lvm2 recommends no packages.

-- debconf information:
  lvm2/snapshots: