Arch Linux

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Description:

Cannot remove a lvm snapshot after created

$ sudo lvcreate -vs -L 2g -n snapshot /dev/arch/home

$ sudo lvs
LV VG Attr LSize Origin Snap% Move Log Copy% Convert
home arch owi-ao 180.00g
root arch -wi-ao 30.00g
shoot arch sri-a- 2.00g home 14.43
swap arch -wi-ao 4.00g

$ sudo lvremove /dev/arch/shoot
Can't remove open logical volume "shoot"

I have to reboot, and when the system starts, at the "Checking Filesystems" stage, it shows:

/dev/mapper/arch-root is mounted

WARNING!! The filesystem is mounted. If you continue you ***WILL***
cause ***SEVERE*** filesystem damage

Do you really want to continue (y/n)?

Of course I choose NO

And the / is mounted with barrier=1,data=ordered, as below:
/dev/disk/by-uuid/3e3772ad-c207-470d-a64e-fa054bd8f348 on / type ext4 (rw,relatime,barrier=1,data=ordered)

The normal mount option is:
/dev/disk/by-uuid/3e3772ad-c207-470d-a64e-fa054bd8f348 on / type ext4 (rw,relatime,commit=0))

And then I can login and delete the lvm snapshot, as usual. If I login but do not remove the lvm snapshot,
next time system boot, it shows the WARNING again....

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Additional info:

x86_64

kernel26 2.6.35.3-1
lvm2 2.02.70-1
cryptsetup 1.1.3-1

I use lvm on a luks encrypted partition, kernel26 ver 2.6.35.2
has this problem, too.

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Steps to reproduce:

Run the lvcreate && lvremove commands, I can reproduce this everytime.