Re: [Qemu-devel] [PATCH v2] qemu-img fails to delete last snapshot

[Mike Day]

On Wed, May 14, 2014 at 11:15 AM, Kevin Wolf <address@hidden> wrote:
>> freeing the extra clusters.
>
> Do you have an easy reproducer? Because I can't see the bug.

Thanks for the review! I was having a hard time reproducing this until
I did a bisect. This bug was fixed by 65f33bc which was merged at or
after  the time I submitted the patch:

 qcow2: Fix alloc_clusters_noref() overflow detection

I can reproduce the bug by checking out the immediate ancestor
43cbeffb1, creating a single snapshot in a qcow2 image, and then
attempting to delete that snapshot.

The error I get is:
qemu-img: Could not delete snapshot 'snapone': (Failed to remove
snapshot from snapshot list: File too large)

This is the error that is fixed by 65f33bc

Mike