please approve below steps for verification (or suggest other steps) 1. Set VM with disk on Block domain 2. Install OS 3. Add new 5G thin provision disk (Block) 4. Take snapshot of the disk created on step 3 5. Write 4G file on the new disk 6. Remove the snapshot (live merge)
Sorry for the late reply, had a glitch in communication here. The steps in comment 1 are sufficient, thanks Aharon!
Aharon, it's tricky to trigger the bad behavior since you need specific combinations of qcow data allocated to the base and top volumes. Please follow these steps for verification: 1. Install a VM with a single system disk 2. Add a new 5G thinly provisioned block disk 3. Boot the VM and write a 2G file to the disk created in step 2. 4. Take a snapshot. 5. Write a different 2G file to the disk from step 2. 6. Live merge.
(In reply to Adam Litke from comment #3) > Aharon, it's tricky to trigger the bad behavior since you need specific > combinations of qcow data allocated to the base and top volumes. Please > follow these steps for verification: > > 1. Install a VM with a single system disk > 2. Add a new 5G thinly provisioned block disk > 3. Boot the VM and write a 2G file to the disk created in step 2. > 4. Take a snapshot. > 5. Write a different 2G file to the disk from step 2. > 6. Live merge. Verified using vt18.2
RHEV 3.5.6 has been release, updating status accordingly.