--- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -1140,6 +1140,10 @@ int btrfs_load_block_group_zone_info(str } if (zone.type == BLK_ZONE_TYPE_CONVENTIONAL) { + btrfs_err_in_rcu(fs_info, + "zoned: unexpected conventional zone %llu on device %s (devid %llu)", + zone.start << SECTOR_SHIFT, + rcu_str_deref(device->name), device->devid); ret = -EIO; goto out; }