Bug#384813: lvm2: vgdisplay segfaults if used whilst pvmove is in progress

[Alan Chandler]

Package: lvm2
Version: 2.02.06-2
Severity: normal


If in one virtual terminal I undertake a pvmove, and whilst this is in progress undertake a vgdisplay it segfaults.

At this point, when pvmove gets near to the end it locks solid and does not complete.  htop on the same terminal as 
vgdisplay has segfaulted locks solid.

Rebooting the system, attempt to pvmove on its own to restart the move fails (complains mirror percentage is wrong)
pvmove --abort takes you back to the last completely moved lv and removes the pvmove0 lv, BUT at that point all the 
lv statuses of lvs in the volume group involved in the move are set to NOT available, and it requires a manual lvchange 
-a y to fix. 

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-2-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages lvm2 depends on:
ii  debconf [debconf-2.0]        1.5.3       Debian configuration management sy
ii  libc6                        2.3.6-15    GNU C Library: Shared libraries
ii  libdevmapper1.02             2:1.02.08-1 The Linux Kernel Device Mapper use
ii  libncurses5                  5.5-2       Shared libraries for terminal hand
ii  libreadline5                 5.1-7       GNU readline and history libraries
ii  libselinux1                  1.30-1      SELinux shared libraries
ii  libsepol1                    1.12-1      Security Enhanced Linux policy lib
ii  lvm-common                   1.5.20      The Logical Volume Manager for Lin

lvm2 recommends no packages.

-- debconf information:
  lvm2/snapshots: