[    3.698420] input: Microsoft Microsoft® Nano Transceiver v2.0 as /devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.3/1-3.3:1.0/0003:045E:0745.0001/input/input7
[    3.698641] hid-generic 0003:045E:0745.0001: input,hidraw0: USB HID v1.11 Keyboard [Microsoft Microsoft® Nano Transceiver v2.0] on usb-0000:00:12.2-3.3/input0
[    3.699846] input: Microsoft Microsoft® Nano Transceiver v2.0 as /devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.3/1-3.3:1.1/0003:045E:0745.0002/input/input8
[    3.700105] hid-generic 0003:045E:0745.0002: input,hidraw1: USB HID v1.11 Mouse [Microsoft Microsoft® Nano Transceiver v2.0] on usb-0000:00:12.2-3.3/input1
[    3.712030] input: Microsoft Microsoft® Nano Transceiver v2.0 as /devices/pci0000:00/0000:00:12.2/usb1/1-3/1-3.3/1-3.3:1.2/0003:045E:0745.0003/input/input9
[    3.712368] hid-generic 0003:045E:0745.0003: input,hiddev0,hidraw2: USB HID v1.11 Device [Microsoft Microsoft® Nano Transceiver v2.0] on usb-0000:00:12.2-3.3/input2
[   33.906870] audit_printk_skb: 60 callbacks suppressed
[   33.906881] audit: type=1400 audit(1413060752.695:32): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cups-browsed" pid=1235 comm="apparmor_parser"
[   35.220678] nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.
[   38.044349] init: plymouth-upstart-bridge main process ended, respawning
[   38.078435] init: plymouth-upstart-bridge main process ended, respawning
[   38.210419] systemd-logind[982]: Failed to start unit user@1000.service: Unknown unit: user@1000.service
[   38.210441] systemd-logind[982]: Failed to start user service: Unknown unit: user@1000.service
[   38.224244] systemd-logind[982]: New session c1 of user jerry.
[   38.224325] systemd-logind[982]: Linked /tmp/.X11-unix/X0 to /run/user/1000/X11-display.
[   51.151473] EXT4-fs (sdb2): mounted filesystem with ordered data mode. Opts: (null)
[   51.155850] EXT4-fs (sdb6): mounted filesystem with ordered data mode. Opts: (null)
[   51.217500] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
[   52.374551] [UFW BLOCK] IN=eth0 OUT= MAC= SRC=fe80:0000:0000:0000:1e75:08ff:febe:01d4 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=64 TC=0 HOPLIMIT=1 FLOWLBL=0 PROTO=UDP SPT=8612 DPT=8612 LEN=24 
[   52.385168] [UFW BLOCK] IN=eth0 OUT= MAC= SRC=fe80:0000:0000:0000:1e75:08ff:febe:01d4 DST=ff02:0000:0000:0000:0000:0000:0000:0001 LEN=64 TC=0 HOPLIMIT=1 FLOWLBL=0 PROTO=UDP SPT=8612 DPT=8612 LEN=24 
[   53.514482] UDF-fs: INFO Mounting volume 'UDF Volume', timestamp 2014/05/11 11:35 (1f10)
[   53.617450] sr 1:0:0:0: [sr0] Invalid command failure
[   53.617464] sr 1:0:0:0: [sr0]  
[   53.617468] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[   53.617472] sr 1:0:0:0: [sr0]  
[   53.617476] Sense Key : Illegal Request [current] 
[   53.617483] sr 1:0:0:0: [sr0]  
[   53.617489] Add. Sense: Invalid field in cdb
[   53.617493] sr 1:0:0:0: [sr0] CDB: 
[   53.617496] Write(10): 2a 00 00 00 00 40 00 00 01 00
[   53.617508] end_request: critical target error, dev sr0, sector 256
[   53.617516] Buffer I/O error on device sr0, logical block 64
[   53.617518] lost page write due to I/O error on sr0
[   54.375468] compiz[1797]: segfault at 0 ip           (null) sp 00007fff78af4da8 error 14 in compiz[400000+3000]
[   57.020148] audit: type=1400 audit(1413060775.798:33): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2426 comm="apparmor_parser"
[   57.020178] audit: type=1400 audit(1413060775.798:34): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2426 comm="apparmor_parser"
[   57.037426] audit: type=1400 audit(1413060775.818:35): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="third_party" pid=2426 comm="apparmor_parser"