Bug umount

Hi list, 

I try to umount a partition and got this.

Mar 31 18:03:07 jaschtschik-pc kernel: 0000000270|rsbac_umount: removed
primary mount for device 254:22, inheritance broken!
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000271|do_umount()
[sys_umount()]: umount failed -> calling rsbac_mount for Device 254:22
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000272|rsbac_mount: repeated
mount 1 of device 254:22
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000273|rsbac_mount_auth:
repeated mount 1 of device 254:22
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000274|rsbac_mount_acl:
repeated mount 1 of device 254:22
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000275|rsbac_umount: removed
primary mount for device 254:22, inheritance broken!
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000276|do_umount()
[sys_umount()]: umount failed -> calling rsbac_mount for Device 254:22
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000277|rsbac_mount: repeated
mount 1 of device 254:22
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000278|rsbac_mount_auth:
repeated mount 1 of device 254:22
Mar 31 18:03:07 jaschtschik-pc kernel: 0000000279|rsbac_mount_acl:
repeated mount 1 of device 254:22
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000280|rsbac_umount: removed
primary mount for device 254:22, inheritance broken!
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000281|do_umount()
[sys_umount()]: umount failed -> calling rsbac_mount for Device 254:22
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000282|rsbac_mount: repeated
mount 1 of device 254:22