光盘信息如下：重复挂载了倒是，一个是自动挂的一个是我手动挂的

udisksctl info -b /dev/sr0
/org/freedesktop/UDisks2/block_devices/sr0:
  org.freedesktop.UDisks2.Block:
    Configuration:              []
    CryptoBackingDevice:        '/'
    Device:                     /dev/sr0
    DeviceNumber:               2816
    Drive:                      '/org/freedesktop/UDisks2/drives/MATSHITA_DVD_RAM_UJ8E0_535030304A43443035373338'
    HintAuto:                   true
    HintIconName:       
    HintIgnore:                 false
    HintName:           
    HintPartitionable:          false
    HintSymbolicIconName:   
    HintSystem:                 false
    Id:                         by-uuid-122e040120554446
    IdLabel:                    H
    IdType:                     udf
    IdUUID:                     122e040120554446
    IdUsage:                    filesystem
    IdVersion:                  2.01
    MDRaid:                     '/'
    MDRaidMember:               '/'
    PreferredDevice:            /dev/sr0
    ReadOnly:                   true
    Size:                       233406464
    Symlinks:                   /dev/cdrom
                                /dev/disk/by-diskseq/19
                                /dev/disk/by-id/usb-MATSHITA_DVD-RAM_UJ8E0_535030304A43443035373338-0:0
                                /dev/disk/by-label/H
                                /dev/disk/by-path/pci-0000:06:00.4-usb-0:2.2:1.0-scsi-0:0:0:0
                                /dev/disk/by-path/pci-0000:06:00.4-usbv2-0:2.2:1.0-scsi-0:0:0:0
                                /dev/disk/by-uuid/122e040120554446
    UserspaceMountOptions:      uhelper=udisks2
  org.freedesktop.UDisks2.Filesystem:
    MountPoints:        /media/xiali/H
                        /media/xiali/new
    Size:               0

sudo dmesg | grep sr0得到如下错误：这光盘是别人用win创建的udf格式的光盘。卸载和弹出命令都不行，显示设备正忙。然后忙着忙着我就只能重启了。系统操作会出现问题，卡死

[10707.205762] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205764] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205769] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205771] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205775] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205778] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205782] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205784] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205789] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205793] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205795] UDF-fs: error (device sr0): udf_verify_fi: directory (ino 107889) has entry at pos 616 with unaligned length of impUse field
[10707.205800] UDF-fs: error (device sr0): udf_verify_fi:^Z
[1]+  已停止               sudo dmesg | grep sr0