Bug#576673: lvm2: unmount lvm snapshot takes a long time - high disk I/O

[James Robertson]

Package: lvm2
Version: 2.02.62-1
Severity: normal


I am using EXT4 on LVM and have noticed that when I unmount a snapshot created with lvm that it takes a few minutes to unmount and also causes alot of Disk activity.

I am not sure if this bug should be submitted against lvm, ext4 or mount for that matter so apologies if it has been submitted in error to lvm2.

-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.33-2.slh.1-sidux-amd64 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages lvm2 depends on:
ii  dmsetup                      2:1.02.45-1 The Linux Kernel Device Mapper use
ii  libc6                        2.10.2-6    Embedded GNU C Library: Shared lib
ii  libdevmapper1.02.1           2:1.02.45-1 The Linux Kernel Device Mapper use
ii  lsb-base                     3.2-23      Linux Standard Base 3.2 init scrip

lvm2 recommends no packages.

lvm2 suggests no packages.

-- no debconf information