On 08/24/2010 04:40 PM, Anthony Liguori wrote:
1. Allocate a cluster (increase refcount table)
2. Link cluster to L2 table
3. Second operation makes it to disk; first still in pagecache
4. Crash
5. Dangling pointer from L2 to freed cluster
Yes, having this discussion in IRC.
The problem is that we maintain a refcount table.
Are you sure that's the only issue?
If we didn't do internal disk snapshots, we wouldn't have this
problem. IOW, VMDK doesn't have this problem so the answer to my very
first question is that qcow2 is too difficult a format to get right.
One doesn't follow from the other (though I'm no fan of internal
snapshots, myself).
--
error compiling committee.c: too many arguments to function
