Re: [PATCH 2/3] btrfs-progs: send: fix handling of multiple snapshots (-p option)

On Wed, Oct 19, 2016 at 11:35:03AM +0900, Tsutomu Itoh wrote:

We cannot send multiple snapshots at once by -p option.

We cannot like that it's broken, or we cannot because it's not supposed
to work that way. I guess it's the former, but the changelog text is a
bit confusing.

[before]
# btrfs send -f /tmp/data0 -p Snap0 Snap[12]
At subvol Snap1
At subvol Snap2
ERROR: parent determination failed for 0
# 

[after]
# btrfs send -f /tmp/data0 -p Snap0 Snap[12]
At subvol Snap1
At subvol Snap2
# 

I'm not sure it's fixed, I wrote a simple test, attached, that triggers
the bug even with the patch applied.