[-next] BUG_ON in scsi_target_destroy()
From: Sergey Senozhatsky
Date: Mon Apr 11 2016 - 05:00:30 EST
Hello,
commit 7b106f2de6938c31ce5e9c86bc70ad3904666b96
Author: Johannes Thumshirn <jthumshirn@xxxxxxx>
Date: Tue Apr 5 11:50:44 2016 +0200
scsi: Add intermediate STARGET_REMOVE state to scsi_target_state
BUG_ON()s (next-20160411) each time I remove a usb flash
[ 49.561600] [<ffffffffa0087f42>] scsi_target_destroy+0x5a/0xcb [scsi_mod]
[ 49.561607] [<ffffffffa0089099>] scsi_target_reap+0x4a/0x4f [scsi_mod]
[ 49.561613] [<ffffffffa008b453>] __scsi_remove_device+0xc3/0xd0 [scsi_mod]
[ 49.561619] [<ffffffffa0089d7b>] scsi_forget_host+0x52/0x63 [scsi_mod]
[ 49.561623] [<ffffffffa0080dbc>] scsi_remove_host+0x8c/0x102 [scsi_mod]
[ 49.561627] [<ffffffffa015c447>] usb_stor_disconnect+0x6b/0xab [usb_storage]
[ 49.561634] [<ffffffffa0013f73>] usb_unbind_interface+0x77/0x1ca [usbcore]
[ 49.561636] [<ffffffff813ae064>] __device_release_driver+0x9d/0x121
[ 49.561638] [<ffffffff813ae10b>] device_release_driver+0x23/0x30
[ 49.561639] [<ffffffff813ad2d1>] bus_remove_device+0xfb/0x10e
[ 49.561641] [<ffffffff813aac05>] device_del+0x164/0x1e6
[ 49.561648] [<ffffffffa0011b09>] ? remove_intf_ep_devs+0x3b/0x48 [usbcore]
[ 49.561655] [<ffffffffa001200e>] usb_disable_device+0x84/0x1a5 [usbcore]
[ 49.561661] [<ffffffffa000ac7b>] usb_disconnect+0x94/0x19f [usbcore]
[ 49.561667] [<ffffffffa000c2ab>] hub_event+0x5c1/0xdea [usbcore]
[ 49.561670] [<ffffffff810530b1>] process_one_work+0x1dc/0x37f
[ 49.561672] [<ffffffff81053dc5>] worker_thread+0x282/0x36d
[ 49.561673] [<ffffffff81053b43>] ? rescuer_thread+0x2ae/0x2ae
[ 49.561675] [<ffffffff810580a8>] kthread+0xd2/0xda
[ 49.561678] [<ffffffff814bbf92>] ret_from_fork+0x22/0x40
[ 49.561679] [<ffffffff81057fd6>] ? kthread_worker_fn+0x13e/0x13e
-ss