freebsd9.0 分配的umass设备的号码和分配给da设备的号码不一致

bhpang2

在做10多个移动硬盘连接到系统的时候常会出现这问题。应该是系统有问题。比如：umass7对应的da设备应该是da7，可是有时会得到6，下面是log内容

Mar 13 14:29:59 MYNAS kernel: ugen3.10: <Seagate> at usbus3
Mar 13 14:29:59 MYNAS kernel: umass7: <Seagate> on usbus3
Mar 13 14:29:59 MYNAS kernel: umass7: SCSI over Bulk-Only; quirks = 0x4100
Mar 13 14:29:59 MYNAS kernel: umass7:14:7:-1: Attached to scbus14
Mar 13 14:29:59 MYNAS kernel: da6 at umass-sim7 bus 7 scbus14 target 0 lun 0
Mar 13 14:29:59 MYNAS kernel: da6: <Seagate> Fixed Direct Access SCSI-0 device
Mar 13 14:29:59 MYNAS kernel: da6: 40.000MB/s transfers
Mar 13 14:29:59 MYNAS kernel: da6: 953869MB (1953525167 512 byte sectors: 255H 63S/T 121601C)
Mar 13 14:35:12 MYNAS kernel: ntfs_loadntnode: BREAD FAILED
Mar 13 14:35:12 MYNAS kernel: ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: 5
Mar 13 14:35:12 MYNAS kernel: ntfs_root: VFS_VGET failed: 6
Mar 13 14:36:14 MYNAS kernel: ntfs_loadntnode: BREAD FAILED
Mar 13 14:36:14 MYNAS kernel: ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: 5
Mar 13 14:36:14 MYNAS kernel: ntfs_root: VFS_VGET failed: 6
Mar 13 14:37:30 MYNAS root: 7
Mar 13 14:37:30 MYNAS kernel: ugen3.10: <Seagate> at usbus3 (disconnected)
Mar 13 14:37:30 MYNAS kernel: umass7: at uhub8, port 4, addr 10 (disconnected)
Mar 13 14:37:30 MYNAS kernel: (da6:umass-sim7:7:0:0): lost device - 0 outstanding
Mar 13 14:37:30 MYNAS kernel: (da6:umass-sim7:7:0:0): removing device entry
Mar 13 14:37:30 MYNAS root: umount
Mar 13 14:38:21 MYNAS kernel: ntfs_loadntnode: BREAD FAILED
Mar 13 14:38:21 MYNAS kernel: ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: 5
Mar 13 14:38:21 MYNAS kernel: ntfs_root: VFS_VGET failed: 6
Mar 13 14:38:59 MYNAS kernel: ugen3.10: <Seagate> at usbus3
Mar 13 14:38:59 MYNAS kernel: umass7: <Seagate> on usbus3
Mar 13 14:38:59 MYNAS kernel: umass7: SCSI over Bulk-Only; quirks = 0x4100
Mar 13 14:38:59 MYNAS kernel: umass7:14:7:-1: Attached to scbus14
Mar 13 14:38:59 MYNAS kernel: da6 at umass-sim7 bus 7 scbus14 target 0 lun 0
Mar 13 14:38:59 MYNAS kernel: da6: <Seagate> Fixed Direct Access SCSI-0 device
Mar 13 14:38:59 MYNAS kernel: da6: 40.000MB/s transfers
Mar 13 14:38:59 MYNAS kernel: da6: 953869MB (1953525167 512 byte sectors: 255H 63S/T 121601C)
Mar 13 14:40:12 MYNAS kernel: ntfs_loadntnode: BREAD FAILED
Mar 13 14:40:12 MYNAS kernel: ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: 5
Mar 13 14:40:12 MYNAS kernel: ntfs_root: VFS_VGET failed: 6
Mar 13 14:40:12 MYNAS kernel: ntfs_loadntnode: BREAD FAILED
Mar 13 14:40:12 MYNAS kernel: ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: 5
Mar 13 14:40:12 MYNAS kernel: ntfs_root: VFS_VGET failed: 6
Mar 13 14:41:25 MYNAS kernel: ntfs_loadntnode: BREAD FAILED
Mar 13 14:41:25 MYNAS kernel: ntfs_vget: CAN'T LOAD ATTRIBUTES FOR INO: 5
Mar 13 14:41:25 MYNAS kernel: ntfs_root: VFS_VGET failed: 6