ValueError when get dm_num

ceph version: 12.2.4
kernel :3.10.0-862.el7.x86_64
lun_type="block"

#gwtop
Traceback
file "xxx/gwtop/config/local.py",line 49,in get_device_info
file "xxx/gwtop/config/local.py",line 111,in get_lio_devices
ValueError:invalid literal for init() with base 10: 'image1'

if lun.storage_object.udev_path : /dev/rbd/aaa/image1
so dm_id = image1
dm_num = image1
in local.py 109: pool_id=int(dm_num)
so error

whether
dm_num=iblock_name.split('_')[1] ???

Start in gwtop/config/local.py at get_device_info and get_lio_devices, especially lines 109-111, and inspect how /dev/rbd/aaa/image1 is parsed into dm_num. Reproduce the ValueError with the reported block LUN configuration and verify the corrected handling of this device path and pool_id conversion.

Written by the indexing model from the issue text.