Hi Zdenek,

> Anyway - proper reproducer with full -vvvv log would be really the most
> > explanatory and needed to move on here.

The activation error is reproduced once more. Please see lvm2.log attached.

Please search the error message like this:

$grep -rn Aborting lvm2.log
./lvm2.log:1386:activate/dev_manager.c:2459 lvcreate  Aborting.  LV
mythinpool_tmeta is now incomplete and '--activationmode partial' was
not specified.

$grep -rn "Failed to suspend" lvm2.log
./lvm2.log:1399:metadata/lv_manip.c:7416 lvcreate  Failed to suspend
thin snapshot origin vg0/6.

Thanks!
Eric