[   67.466633] usb 1-1: new high-speed USB device number 2 using ehci-pci
[   67.554445] hrtimer: interrupt took 56142297 ns
[   67.874131] usb 1-1: New USB device found, idVendor=174c, idProduct=5106
[   67.874142] usb 1-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[   67.874149] usb 1-1: Product: AS2105
[   67.874156] usb 1-1: Manufacturer: ASMedia
[   67.874162] usb 1-1: SerialNumber: BTDA332202CM2403GN  
[   68.005681] usb-storage 1-1:1.0: USB Mass Storage device detected
[   68.011063] scsi3 : usb-storage 1-1:1.0
[   68.011619] usbcore: registered new interface driver usb-storage
[   69.049966] scsi 3:0:0:0: Direct-Access     INTEL SS DSC2BW240A4      DC12 PQ: 0 ANSI: 5
[   69.050534] sd 3:0:0:0: Attached scsi generic sg2 type 0
[   69.073021] sd 3:0:0:0: [sdb] 468862128 512-byte logical blocks: (240 GB/223 GiB)
[   69.087802] sd 3:0:0:0: [sdb] Write Protect is off
[   69.087808] sd 3:0:0:0: [sdb] Mode Sense: 23 00 00 00
[   69.103939] sd 3:0:0:0: [sdb] No Caching mode page found
[   69.108549] sd 3:0:0:0: [sdb] Assuming drive cache: write through
[   69.174689] sd 3:0:0:0: [sdb] No Caching mode page found
[   69.180707] sd 3:0:0:0: [sdb] Assuming drive cache: write through
[   69.561839]  sdb: sdb1 sdb2 sdb3
[   69.691527] sd 3:0:0:0: [sdb] No Caching mode page found
[   69.694923] sd 3:0:0:0: [sdb] Assuming drive cache: write through
[   69.695380] sd 3:0:0:0: [sdb] Attached SCSI disk
[   73.370568] xor: measuring software checksum speed
[   73.410350]    pIII_sse  : 12322.000 MB/sec
[   73.458275]    prefetch64-sse:  8034.000 MB/sec
[   73.458454] xor: using function: pIII_sse (12322.000 MB/sec)
[   73.567020] raid6: mmxx1     2468 MB/s
[   73.640146] raid6: mmxx2     2417 MB/s
[   73.708759] raid6: sse1x1    1054 MB/s
[   73.777341] raid6: sse1x2    1806 MB/s
[   73.845151] raid6: sse2x1    2809 MB/s
[   73.914404] raid6: sse2x2    2667 MB/s
[   73.914404] raid6: using algorithm sse2x1 (2809 MB/s)
[   73.914404] raid6: using ssse3x1 recovery algorithm
[   74.110273] bio: create slab <bio-1> at 1
[   74.115254] Btrfs loaded
[   74.149917] btrfs: device label ExtSSD devid 1 transid 39 /dev/sdb1
[   75.276261] usb 1-2: new high-speed USB device number 3 using ehci-pci
[   75.617054] usb 1-2: New USB device found, idVendor=174c, idProduct=1053
[   75.617060] usb 1-2: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[   75.617063] usb 1-2: Product: USB3.0 Device
[   75.617065] usb 1-2: Manufacturer: Generic
[   75.617067] usb 1-2: SerialNumber: AC0000000001
[   75.656241] usb-storage 1-2:1.0: USB Mass Storage device detected
[   75.656470] scsi4 : usb-storage 1-2:1.0
[   76.696713] scsi 4:0:0:0: Direct-Access     ASMT     2105             0    PQ: 0 ANSI: 6
[   76.700056] sd 4:0:0:0: Attached scsi generic sg3 type 0
[   76.715282] sd 4:0:0:0: [sdc] 937703088 512-byte logical blocks: (480 GB/447 GiB)
[   76.731441] sd 4:0:0:0: [sdc] Write Protect is off
[   76.731447] sd 4:0:0:0: [sdc] Mode Sense: 43 00 00 00
[   76.744941] sd 4:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   76.974842]  sdc: sdc1
[   77.073027] sd 4:0:0:0: [sdc] Attached SCSI disk
[   79.039012] btrfs: device label ExtSSD devid 2 transid 39 /dev/sdc1
[  253.886910] usb 1-1: USB disconnect, device number 2
[  267.796314] usb 1-1: new high-speed USB device number 4 using ehci-pci
[  268.185367] usb 1-1: New USB device found, idVendor=174c, idProduct=5106
[  268.185373] usb 1-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[  268.185376] usb 1-1: Product: AS2105
[  268.185378] usb 1-1: Manufacturer: ASMedia
[  268.185380] usb 1-1: SerialNumber: BTDA332202CM2403GN  
[  268.223527] usb-storage 1-1:1.0: USB Mass Storage device detected
[  268.227042] scsi5 : usb-storage 1-1:1.0
[  269.271429] scsi 5:0:0:0: Direct-Access     INTEL SS DSC2BW240A4      DC12 PQ: 0 ANSI: 5
[  269.271756] sd 5:0:0:0: Attached scsi generic sg2 type 0
[  269.295157] sd 5:0:0:0: [sdb] 468862128 512-byte logical blocks: (240 GB/223 GiB)
[  269.312064] sd 5:0:0:0: [sdb] Write Protect is off
[  269.312070] sd 5:0:0:0: [sdb] Mode Sense: 23 00 00 00
[  269.326515] sd 5:0:0:0: [sdb] No Caching mode page found
[  269.330357] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[  269.383923] sd 5:0:0:0: [sdb] No Caching mode page found
[  269.387596] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[  269.752488]  sdb: sdb1 sdb2 sdb3
[  269.850323] sd 5:0:0:0: [sdb] No Caching mode page found
[  269.853365] sd 5:0:0:0: [sdb] Assuming drive cache: write through
[  269.854186] sd 5:0:0:0: [sdb] Attached SCSI disk
[  273.663823] btrfs: device label ExtSSD devid 1 transid 39 /dev/sdb1
[  273.713402] btrfs: device label ExtSSD devid 1 transid 39 /dev/sdb1
[  293.508232] btrfs: device label ExtSSD devid 2 transid 39 /dev/sdc1
[  293.523936] btrfs: device label ExtSSD devid 1 transid 39 /dev/sdb1
[  293.585384] btrfs: device label ExtSSD devid 2 transid 39 /dev/sdc1
[  293.599551] btrfs: device label ExtSSD devid 1 transid 39 /dev/sdb1
[  313.198407] btrfs: device label ExtSSD devid 2 transid 39 /dev/sdc1
[  313.405514] btrfs: disk space caching is enabled
[  367.682194] BUG: unable to handle kernel paging request at dc14c000
[  367.684338] IP: [<e0cbe86d>] btrfs_defrag_file+0x92d/0xf00 [btrfs]
[  367.685310] *pdpt = 0000000001a94001 *pde = 000000001b6aa063 *pte = 800000001c14c161 
[  367.685972] Oops: 0003 [#1] SMP 
[  367.685972] Modules linked in: btrfs raid6_pq libcrc32c xor usb_storage snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_page_alloc ppdev snd_timer snd serio_raw joydev i2c_piix4 soundcore parport_pc mac_hid lp parport hid_generic usbhid hid psmouse ahci libahci e1000
[  367.685972] CPU: 0 PID: 7205 Comm: btrfs Not tainted 3.13.0-27-generic #50-Ubuntu
[  367.685972] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006
[  367.685972] task: dce0e780 ti: dcfaa000 task.ti: dcfaa000
[  367.685972] EIP: 0060:[<e0cbe86d>] EFLAGS: 00010246 CPU: 0
[  367.685972] EIP is at btrfs_defrag_file+0x92d/0xf00 [btrfs]
[  367.685972] EAX: dc14ae00 EBX: dff20960 ECX: 00000480 EDX: dcfabcc8
[  367.685972] ESI: 00000481 EDI: 00000000 EBP: dcfabde0 ESP: dcfabce4
[  367.685972]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  367.685972] CR0: 8005003b CR2: dc14c000 CR3: 1b672000 CR4: 000006f0
[  367.685972] Stack:
[  367.685972]  02246fff 00000001 dcfabdc0 00000050 00000000 dcfabdc0 00000050 00000481
[  367.685972]  00000000 00040000 00000000 f0551000 00000005 00000001 de24704c dc14ae00
[  367.685972]  00000000 00000000 df1c6c00 006f2316 00000000 de247000 005f0551 00000000
[  367.685972] Call Trace:
[  367.685972]  [<e0cbeeca>] ? btrfs_ioctl_defrag+0x8a/0x190 [btrfs]
[  367.685972]  [<e0cbef28>] btrfs_ioctl_defrag+0xe8/0x190 [btrfs]
[  367.685972]  [<e0cbf390>] ? update_ioctl_balance_args+0x2c0/0x2c0 [btrfs]
[  367.685972]  [<e0cbfe9a>] btrfs_ioctl+0xb0a/0x2f30 [btrfs]
[  367.685972]  [<c12fbf10>] ? lockref_put_or_lock+0x20/0x30
[  367.685972]  [<c11947cd>] ? mntput+0x1d/0x30
[  367.685972]  [<c1181bc7>] ? terminate_walk+0x47/0x50
[  367.685972]  [<c11856ec>] ? do_last+0x34c/0xf60
[  367.685972]  [<c1183fdf>] ? link_path_walk+0x5f/0x6f0
[  367.685972]  [<c12a6d5a>] ? apparmor_file_alloc_security+0x4a/0x130
[  367.685972]  [<c11863b0>] ? path_openat+0xb0/0x520
[  367.685972]  [<c11873d1>] ? do_filp_open+0x31/0x80
[  367.685972]  [<e0cbf390>] ? update_ioctl_balance_args+0x2c0/0x2c0 [btrfs]
[  367.685972]  [<c1189902>] do_vfs_ioctl+0x2e2/0x4d0
[  367.685972]  [<c118683d>] ? final_putname+0x1d/0x40
[  367.685972]  [<c118683d>] ? final_putname+0x1d/0x40
[  367.685972]  [<c11869e4>] ? putname+0x24/0x40
[  367.685972]  [<c11782c6>] ? do_sys_open+0x196/0x260
[  367.685972]  [<c1189b50>] SyS_ioctl+0x60/0x80
[  367.685972]  [<c165d0cd>] sysenter_do_call+0x12/0x28
[  367.685972] Code: 74 ff ff ff 8b 85 40 ff ff ff 83 85 74 ff ff ff 01 83 85 20 ff ff ff 01 83 95 24 ff ff ff 00 8b b5 20 ff ff ff 8b bd 24 ff ff ff <89> 1c 88 8b 8d 5c ff ff ff 8b 9d 60 ff ff ff 89 f0 89 fa 31 c8
[  367.685972] EIP: [<e0cbe86d>] btrfs_defrag_file+0x92d/0xf00 [btrfs] SS:ESP 0068:dcfabce4
[  367.685972] CR2: 00000000dc14c000
[  367.685972] ---[ end trace 61efcb0f7b770391 ]---