Hi All, I'm running LVM2.2.02.138 on Ubuntu 14.04. When I try to expand a thinpool, I found that lvextend doesn't expand the top-level dm-linear device of the thinpool. The following are the reproduce steps # lvcreate vg1 --type thin-pool --thinpool tp1 --size 1g --poolmetadataspare=n -Zn # lvcreate vg1 --type thin --thinpool tp1 --virtualsize 100m --name lvol0 # lvextend vg1/tp1 --size +100m After running lvextend, the table of vg1-tp1_tdata and vg1-tp1-tpool are expanded, but the dm-linear table of vg1-tp1 remains unchanged. I think that the function _lv_update_and_reload() erroneously operates on the holder of of tp1, that is, lvol0. This might be caused by commit fa64823, hence the subsequent actions runs on the lock_lv. The verbose output also shows that the tree_action() is running on lvol0, not tp1. Creating PRELOAD tree for vg1/lvol0. Creating SUSPEND tree for vg1/lvol0. Creating ACTIVATE tree for vg1/lvol0. Creating CLEAN tree for vg1/lvol0. Is that a bug? Thanks, Ming-Hung Tsai _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/