On Tue, 2018-01-16 at 14:10 +0800, zhenwei.pi wrote: > CPU: 15 PID: 23529 Comm: lvm Tainted: G D W E 4.14.11 #1 Please retest with kernel v4.15-rc6 or later. That kernel includes commit 81b6c9998979 ("scsi: core: check for device state in __scsi_remove_target()"). Thanks, Bart.