Description of problem:

On RHEL 5.2 host, when multipathd is restarted, with some logical volumes
mounted, the daemon holds the mounted lvs open. As a result, the open count does
not reduce to zero even after we unmount the LVs and the LVs are not in use.

Version-Release number of selected component (if applicable):

OS: RHEL 5.2 GA

# rpm -qa  | grep device
device-mapper-1.02.24-1.el5
device-mapper-multipath-0.4.7-17.el5
device-mapper-event-1.02.24-1.el5
device-mapper-1.02.24-1.el5
#

How reproducible:
Always

Steps to Reproduce:

1. Create a logical volume on a few LUNs.
2. Create a file system on the lv and mount it to a mountpiont.
3. Check lvdisplay output - should display open count as 1.
4. Restart the multipathd daemon.
5. Unmount the lv from the mountpoint.
6. Check the output of lvdisplay.

Actual results:

The open count is still shown as 1 since the multipathd now holds it.

Expected results:

The multipathd should not hold it open.

Additional info:

1. We hit this issue if we add the automount entry in the /etc/fstab and reboot
the machine. After the machine is booted, we unmount the lv from its mount
point. Now, if we check the open count using lvdisplay, the count is still 1.

Open count reduces to zero after restarting the daemon with the lv unmounted.
The daemon holds only the mounted LVs open.

2. I have attached a file which has terminal logs.