Bug#605957: lvm2: Every even attempt "pvmove" fails

[Andrew Shirayev]

Package: lvm2
Version: 2.02.39-8
Severity: critical
Justification: causes serious data loss



-- System Information:
Debian Release: 5.0.7
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages lvm2 depends on:
ii  libc6                       2.7-18lenny6 GNU C Library: Shared libraries
ii  libdevmapper1.02.1          2:1.02.27-4  The Linux Kernel Device Mapper use
ii  libreadline5                5.2-3.1      GNU readline and history libraries
ii  lsb-base                    3.2-20       Linux Standard Base 3.2 init scrip

Versions of packages lvm2 recommends:
ii  dmsetup                      2:1.02.27-4 The Linux Kernel Device Mapper use

lvm2 suggests no packages.

-- debconf-show failed


======   Short description

create LV tmptmp on /dev/sdb1 -- Ok
create LV tmptmp on /dev/sdb1 -- Ok
pvmove tmptmp  /dev/sdb1 -> /dev/sda2 -- Ok
pvmove tmptmp1 /dev/sdb1 -> /dev/sda2 -- Fail, data lost
pvmove tmptmp1 /dev/sda2 -> /dev/sdb1 -- Ok
pvmove tmptmp  /dev/sda2 -> /dev/sdb1 -- Fail, data lost
pvmove tmptmp1 /dev/sdb1 -> /dev/sda2 -- Ok
pvmove tmptmp  /dev/sdb1 -> /dev/sda2 -- Fail, data lost


====== Logs

omega:~# lvcreate -n tmptmp -L 1G mir1a /dev/sdb1
  Logical volume "tmptmp" created
omega:~# lvcreate -n tmptmp1 -L 1G mir1a /dev/sdb1
  Logical volume "tmptmp1" created
omega:~# cat /proc/partitions
major minor  #blocks  name
.....................
 254    15    1048576 dm-15
 254    16    1048576 dm-16
omega:~# pvmove -n tmptmp /dev/sdb1 /dev/sda2
  /dev/sdb1: Moved: 77.0%
  /dev/sdb1: Moved: 100.0%
omega:~# pvmove -n tmptmp1 /dev/sdb1 /dev/sda2
  device-mapper: create ioctl failed: Device or resource busy
  device-mapper: reload ioctl failed: Invalid argument
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  /dev/sdb1: Moved: 100.0%
  device-mapper: create ioctl failed: Device or resource busy
  Unable to reactivate logical volume "pvmove0"
omega:~# pvmove -n tmptmp1 /dev/sda2 /dev/sdb1
  /dev/sda2: Moved: 94.9%
  /dev/sda2: Moved: 100.0%
omega:~# pvmove -n tmptmp /dev/sda2 /dev/sdb1
  device-mapper: create ioctl failed: Device or resource busy
  device-mapper: reload ioctl failed: Invalid argument
  WARNING: dev_open(/dev/sda2) called while suspended
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  WARNING: dev_open(/dev/sdb1) called while suspended
  /dev/sda2: Moved: 100.0%
  device-mapper: create ioctl failed: Device or resource busy
  Unable to reactivate logical volume "pvmove0"
omega:~# pvmove -n tmptmp1 /dev/sdb1 /dev/sda2
  /dev/sdb1: Moved: 75.0%
  /dev/sdb1: Moved: 100.0%
omega:~# pvmove -n tmptmp /dev/sdb1 /dev/sda2
  device-mapper: create ioctl failed: Device or resource busy
  device-mapper: reload ioctl failed: Invalid argument
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  WARNING: dev_open(/dev/sdb1) called while suspended
  WARNING: dev_open(/dev/sda2) called while suspended
  /dev/sdb1: Moved: 100.0%
  device-mapper: create ioctl failed: Device or resource busy
  Unable to reactivate logical volume "pvmove0"