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
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000283|rsbac_mount_auth:
repeated mount 1 of device 254:22
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000284|rsbac_mount_acl:
repeated mount 1 of device 254:22
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000285|rsbac_umount: removed
primary mount for device 254:22, inheritance broken!
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000286|do_umount()
[sys_umount()]: umount failed -> calling rsbac_mount for Device 254:22
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000287|rsbac_mount: repeated
mount 1 of device 254:22
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000288|rsbac_mount_auth:
repeated mount 1 of device 254:22
Mar 31 18:03:17 jaschtschik-pc kernel: 0000000289|rsbac_mount_acl:
repeated mount 1 of device 254:22
Mar 31 18:03:34 jaschtschik-pc kernel: 0000000290|rsbac_umount: removed
primary mount for device 254:22, inheritance broken!
Mar 31 18:03:34 jaschtschik-pc kernel: BUG: Dentry
ffff8801af4b8840{i=102be7c8,n=rsbac.dat} still in use (1) [unmount of
xfs dm-22]


Mar 31 18:03:34 jaschtschik-pc kernel: ------------[ cut here
]------------
Mar 31 18:03:34 jaschtschik-pc kernel: kernel BUG at fs/dcache.c:887!
Mar 31 18:03:34 jaschtschik-pc kernel: invalid opcode: 0000 [#1] SMP 
Mar 31 18:03:34 jaschtschik-pc kernel: CPU 3 
Mar 31 18:03:34 jaschtschik-pc kernel: Modules linked in: loop isofs
ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack
nf_defrag_ipv4 ip_tables x_tables ppp_async crc_ccitt ppp_generic slhc
option usb_wwan usbserial bridge
 stp llc nvidia(P) snd_usb_audio snd_usbmidi_lib snd_rawmidi uvcvideo
videodev v4l2_compat_ioctl32 fuse xfs exportfs zlib_deflate
scsi_wait_scan usb_storage sg
Mar 31 18:03:34 jaschtschik-pc kernel: 
Mar 31 18:03:34 jaschtschik-pc kernel: Pid: 13664, comm: umount Tainted:
P           O 3.2.12-rsbac-soft-4+ #1 System manufacturer P5E Deluxe/P5E
Deluxe
Mar 31 18:03:34 jaschtschik-pc kernel: RIP: 0010:[<ffffffff81139de5>]
[<ffffffff81139de5>] shrink_dcache_for_umount_subtree+0x83/0x182
Mar 31 18:03:34 jaschtschik-pc kernel: RSP: 0018:ffff8801af9bfe98
EFLAGS: 00010296
Mar 31 18:03:34 jaschtschik-pc kernel: RAX: 0000000000000063 RBX:
ffff8801af4b8840 RCX: 000000000000009d
Mar 31 18:03:34 jaschtschik-pc kernel: RDX: 0000000000000000 RSI:
0000000000000046 RDI: ffffffff816b0040
Mar 31 18:03:34 jaschtschik-pc kernel: RBP: ffff8801af4b8840 R08:
0000000000000002 R09: 00000000ffffffff
Mar 31 18:03:34 jaschtschik-pc kernel: R10: 0000000000000000 R11:
0000000000000001 R12: 00007fc6635dc2f0
Mar 31 18:03:34 jaschtschik-pc kernel: R13: 00007fc6635dc320 R14:
0000000000000000 R15: 0000000000000000
Mar 31 18:03:34 jaschtschik-pc kernel: FS:  00007fc663394740(0000)
GS:ffff88022fd80000(0000) knlGS:0000000000000000
Mar 31 18:03:34 jaschtschik-pc kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Mar 31 18:03:34 jaschtschik-pc kernel: CR2: 0000000009d67808 CR3:
0000000168f03000 CR4: 00000000000426f0
Mar 31 18:03:34 jaschtschik-pc kernel: DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Mar 31 18:03:34 jaschtschik-pc kernel: DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Mar 31 18:03:34 jaschtschik-pc kernel: Process umount (pid: 13664,
threadinfo ffff8800bd009cd0, task ffff8800bd0098c0)
Mar 31 18:03:34 jaschtschik-pc kernel: Stack:
Mar 31 18:03:34 jaschtschik-pc kernel: ffff8802085b9680 0000000180800011
00007fffffa35be0 ffff8802085b9400
Mar 31 18:03:34 jaschtschik-pc kernel: ffffffffa011e530 ffffffff8113a0f2
ffff8802085b9400 ffffffff81125d86
Mar 31 18:03:34 jaschtschik-pc kernel: ffff880226421e00 0000000000000083
00007fc6635dc2f0 ffffffff81125e42
Mar 31 18:03:34 jaschtschik-pc kernel: Call Trace:
Mar 31 18:03:34 jaschtschik-pc kernel: [<ffffffffa011e530>] ?
xfs_qm_exit+0x6a1/0x15403 [xfs]
Mar 31 18:03:34 jaschtschik-pc kernel: [<ffffffff8113a0f2>] ?
shrink_dcache_for_umount+0x2d/0x3c
Mar 31 18:03:34 jaschtschik-pc kernel: [<ffffffff81125d86>] ?
generic_shutdown_super+0x17/0xb3
Mar 31 18:03:34 jaschtschik-pc kernel: [<ffffffff81125e42>] ?
kill_block_super+0x20/0x63
Mar 31 18:03:34 jaschtschik-pc kernel: [<ffffffff81126123>] ?
deactivate_locked_super+0x1e/0x54
Mar 31 18:03:34 jaschtschik-pc kernel: [<ffffffff8114124f>] ? sys_umount
+0xa0/0xb1
Mar 31 18:03:34 jaschtschik-pc kernel: [<ffffffff813fa6f6>] ?
system_call_fastpath+0x18/0x1d
Mar 31 18:03:34 jaschtschik-pc kernel: Code: 4b 28 48 8b 40 28 4c 8b 08
48 8b 43 30 48 85 c0 74 04 48 8b 50 38 48 89 34 24 48 c7 c7 4c d4 51 81
48 89 de 31 c0 e8 b7 dc 2b 00 <0f> 0b 48 8b 6b 18 48 39 eb 75 31 48 8b
93 90 00 00 00 48 8b 83 
Mar 31 18:03:34 jaschtschik-pc kernel: RIP  [<ffffffff81139de5>]
shrink_dcache_for_umount_subtree+0x83/0x182
Mar 31 18:03:34 jaschtschik-pc kernel: RSP <ffff8801af9bfe98>
Mar 31 18:03:34 jaschtschik-pc kernel: ---[ end trace 58563182f18359fb
]---


Jens