I've upgraded my x86_64 4.2 box to the latest kernel 2.6.9.34 and tried an lvm snapshot. It worked fine and I was able to mount the snapshot etc. Now I cannot seem to remove the snapshot. If I try a 'lvremove' it asks if I want to remove the 'active' snapshot, if I say yes it just hangs and the box goes to 99% wait io, however the disk lights do not come on during this. The lvremove process is not straceable so I've got no idea whats going on with it.
Luckily I chose to snapshot /tmp so it is not a show stopper. What I did to get around it was to comment out my tmp lv from fstab and just allow /tmp to be part of the root filesystem on the root lv. I deliberately filled up the snapshot so that it was marked inactive but it still thinks it is active when I run the lvremove command again. I also tried to lvremove the tmp lv, not the snapshot, and it said it couldnt remove the lv while there was a snapshot.
I found a thread on the forums where Karanbir Singh states that this sort of thing was broken in early 4 series but may work in 4.3.
Does anyone know how I can clean this up ?
Cheers,
Bards.