[linux-lvm] pvmove fails with "Failure parsing mirror status fraction: 1 core"

[Vesa-Pekka Palmu]

I'm trying to move data away from a raid1 array in a volume group to a 
raid5 array and pvmove fails with error "Failure parsing mirror status 
fraction: 1 core".

Any ideas?

Info:
Kernel 2.6.22.1 Core 2 SMP

LVM version:     2.02.26 (2007-06-15)
Library version: 1.02.20 (2007-06-15)
Driver version:  4.11.0

     Finding volume group "raid1"
     Archiving volume group "raid1" metadata (seqno 11).
     Creating logical volume pvmove0
     Moving 22538 extents of logical volume raid1/backup
     Found volume group "raid1"
     Updating volume group metadata
     Creating volume group backup "/etc/lvm/backup/raid1" (seqno 12).
     Found volume group "raid1"
     Found volume group "raid1"
     Suspending raid1-backup (253:3) without device flush
     Found volume group "raid1"
     Creating raid1-pvmove0
     Loading raid1-pvmove0 table
     Resuming raid1-pvmove0 (253:9)
     Found volume group "raid1"
     Loading raid1-pvmove0 table
     Suppressed raid1-pvmove0 identical table reload.
     Loading raid1-backup table
     Resuming raid1-backup (253:3)
     Checking progress every 15 seconds
   Failure parsing mirror status fraction: 1 core
   Failure parsing mirror status fraction: 1 core
   ABORTING: Mirror percentage check failed.